Added PEAR:DB support plus database replication support

19 files changed, 16065 insertions, 201 deletions

diff --git a/program/include/main.inc b/program/include/main.inc
index 83421768a..ebf2f2685 100644
--- a/program/include/main.inc
+++ b/program/include/main.inc
@@ -54,23 +54,10 @@ function rcmail_startup($task='mail')
 
 
   // prepare DB connection
-  if (strtolower($CONFIG['db_type'])=='mysql')
-    $DB = new rcube_mysql($CONFIG['db_name'], $CONFIG['db_user'], $CONFIG['db_pass'], $CONFIG['db_host']);
-    
-  // database not supported
-  else
-    {
-    raise_error(array('code' => 500,
-                      'type' => 'php',
-                      'line' => __LINE__,
-                      'file' => __FILE__,
-                      'message' => "Database not supported"), TRUE, TRUE);
-    return;
-    }  
-
+  $DB = new rcube_db($CONFIG['db_dsnw'], $CONFIG['db_dsnr']);
 
   // we can use the database for storing session data
-  if (is_object($DB) && $DB->connect())
+  if (is_object($DB))
     include_once('include/session.inc');
 
 
diff --git a/program/include/rcube_db.inc b/program/include/rcube_db.inc
new file mode 100755
index 000000000..f4dc222a5
--- /dev/null
+++ b/program/include/rcube_db.inc
@@ -0,0 +1,202 @@
+<?php
+
+/*
+ +-----------------------------------------------------------------------+
+ | program/include/rcube_db.inc                                          |
+ |                                                                       |
+ | This file is part of the RoundCube Webmail client                     |
+ | Copyright (C) 2005, RoundCube Dev. - Switzerland                      |
+ | Licensed under the GNU GPL                                            |
+ |                                                                       |
+ | PURPOSE:                                                              |
+ |   PEAR:DB wrapper class that implements PEAR DB functions             |
+ |   See http://pear.php.net/package/DB                                  |
+ |                                                                       |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ +-----------------------------------------------------------------------+
+
+ $Id$
+
+*/
+
+require_once('DB.php');
+
+class rcube_db
+{
+    var $db_dsnw;				// DSN for write operations
+    var $db_dsnr;				// DSN for read operations
+    var $db_connected=false;	// Already connected ?
+	var $db_mode='';			// Connection mode
+	var $db_handle=0;			// Connection handle
+
+    var $a_query_results = array('dummy');
+    var $last_res_id = 0;
+
+    // PHP 5 constructor
+    function __construct($db_dsnw,$db_dsnr='')
+    {
+		if ($db_dsnr=='') $db_dsnr=$db_dsnw;
+		
+        $this->db_dsnw = $db_dsnw;
+        $this->db_dsnr = $db_dsnr;
+    }
+
+    // PHP 4 compatibility
+    function rcube_db($db_dsnw,$db_dsnr='')
+    {
+        $this->__construct($db_dsnw,$db_dsnr);
+    }
+
+	// Connect to specific database	
+	function dsn_connect($dsn)
+	{
+		$dbh = DB::connect($dsn);
+
+		if (DB::isError($dbh))
+			raise_error(array('code' => 500,
+                        'type' => 'db',
+                        'line' => __LINE__,
+                        'file' => __FILE__,
+                        'message' => $dbh->getMessage()), TRUE, FALSE);
+		return $dbh;
+	}
+
+	// Connect to appropiate databse	
+	function db_connect ($mode)
+	{
+		if ($this->db_connected && $this->db_mode=='w') return;
+
+		if ($this->db_connected && $this->db_mode==$mode) return;
+
+		if ($mode=='r')
+			$dsn=$this->db_dsnr;
+		else
+			$dsn=$this->db_dsnw;
+
+		$this->db_handle = $this->dsn_connect($dsn);
+		$this->db_connected = true;
+		$this->db_mode = $mode;
+	}
+
+	// Query database (read operations)
+	
+    function query($query)
+    {
+		// Read or write ?
+		
+		if (strtolower(trim(substr($query,0,6)))=='select')
+			$mode='r';
+		else
+			{
+			$mode='w';
+			}
+		
+		$this->db_connect($mode);			
+    
+        $result = $this->db_handle->query($query);
+        
+        if (DB::isError($result))
+			raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 
+			             'file' => __FILE__, 
+			             'message' => $result->getMessage()), TRUE, FALSE);
+        
+        return $this->_add_result($result, $query);
+    }
+
+	function db_execute ($query)
+	{
+		db_connect('w');
+
+		$result = $this->db_handle->query($query);
+
+	}
+	
+	function num_rows($res_id=NULL)
+    {
+        if (!$this->db_handle)
+            return FALSE;
+
+        $result = $this->_get_result($res_id);
+    
+        if ($result)    
+              return $result->numRows();
+        else
+              return FALSE;
+    }
+
+    function affected_rows($res_id=NULL)
+    {
+        if (!$this->db_handle)
+            return FALSE;
+    
+        return $this->last_res_id->affectedRows();
+    }
+
+    function insert_id($sequence = '')
+    {
+        if (!$this->db_link || $this->db_mode=='r')
+            return FALSE;
+
+        switch($this->db_provider)
+        {
+            case 'pgsql':
+                // PostgreSQL uses sequences
+                $result =& $this->db_handle->getOne("SELECT CURRVAL('$sequence')");    
+                if (DB::isError($result))
+                    raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, 
+                    'message' => $result->getMessage()), TRUE, TRUE);
+                return $result;
+                
+            case 'mysql': // This is unfortuneate
+                return mysql_insert_id($this->db_handle);
+                
+            default:
+                die("portability issue with this database, please have the developer fix");
+        }
+    }
+
+
+    function fetch_assoc($res_id=NULL)
+    {
+        $result = $this->_get_result($res_id);
+
+        if (DB::isError($result))
+            raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__,
+                         'message' => $this->db_link->getMessage()), TRUE, TRUE);
+                         
+        return $result->fetchRow(DB_FETCHMODE_ASSOC);
+    }
+
+    function _add_result($res, $query)
+    {
+        // sql error occured
+        if (DB::isError($res))
+        {
+            raise_error(array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, 'message' => $res->getMessage() . " Query: " . preg_replace('/[\r\n]+\s*/', ' ', $query)), TRUE, FALSE);
+             return FALSE;
+        }
+        else
+        {
+            $res_id = sizeof($this->a_query_results);
+            $this->a_query_results[$res_id] = $res;
+            $this->last_res_id = $res_id;
+            return $res_id;
+        }
+    }
+
+
+    function _get_result($res_id)
+    {
+        if ($res_id==NULL)
+            $res_id = $this->last_res_id;
+    
+        if ($res_id && isset($this->a_query_results[$res_id]))
+            return $this->a_query_results[$res_id];
+        else
+        return FALSE;
+    }
+
+}
+
+?>
\ No newline at end of file
diff --git a/program/include/rcube_mysql.inc b/program/include/rcube_mysql.inc
deleted file mode 100644
index c5955489a..000000000
--- a/program/include/rcube_mysql.inc
+++ /dev/null
@@ -1,186 +0,0 @@
-<?php
-
-/*
- +-----------------------------------------------------------------------+
- | program/include/rcube_mysql.inc                                       |
- |                                                                       |
- | This file is part of the RoundCube Webmail client                     |
- | Copyright (C) 2005, RoundCube Dev. - Switzerland                      |
- | Licensed under the GNU GPL                                            |
- |                                                                       |
- | PURPOSE:                                                              |
- |   MySQL wrapper class that implements PHP MySQL functions             |
- |   See http://www.php.net/manual/en/ref.mysql.php                      |
- |                                                                       |
- +-----------------------------------------------------------------------+
- | Author: Thomas Bruederli <roundcube@gmail.com>                        |
- +-----------------------------------------------------------------------+
-
- $Id$
-
-*/
-
-
-class rcube_mysql
-  {
-  var $db_link;
-  var $db_host = 'localhost';
-  var $db_name = '';
-  var $db_user = '';
-  var $db_pass = '';
-  var $a_query_results = array('dummy');
-  var $last_res_id = 0;
-
-
-  // PHP 5 constructor
-  function __construct($db_name='', $user='', $pass='', $host='localhost')
-    {
-    $this->db_host = $host;
-    $this->db_name = $db_name;
-    $this->db_user = $user;
-    $this->db_pass = $pass;
-    }
-
-  // PHP 4 compatibility
-  function rcube_mysql($db_name='', $user='', $pass='', $host='localhost')
-    {
-    $this->__construct($db_name, $user, $pass, $host);
-    }
-
-
-  function connect()
-    {
-    $this->db_link = mysql_connect($this->db_host, $this->db_user, $this->db_pass);
-      
-    if (!$this->db_link)
-      {
-      raise_error(array('code' => 500,
-                        'type' => 'mysql',
-                        'line' => __LINE__,
-                        'file' => __FILE__,
-                        'message' => "Can't connect to database"), TRUE, FALSE);
-      return FALSE;
-      }
-    
-    return TRUE;
-    }
-
-
-  function select_db($name)
-    {
-    $this->db_name = $name;
-
-    if ($this->db_link)
-      mysql_select_db($name, $this->db_link);
-    }
-
-
-  function query($query)
-    {
-    // establish a connection
-    if (!$this->db_link)
-      {
-      if (!$this->connect())
-        return FALSE;
-      }
-
-    $sql_result = mysql_db_query($this->db_name, $query, $this->db_link);
-    return $this->_add_result($sql_result, $query);
-    }
-
-
-  function num_rows($res_id=NULL)
-    {
-    if (!$this->db_link)
-      return FALSE;
-
-    $sql_result = $this->_get_result($res_id);
-    
-    if ($sql_result)    
-      return mysql_num_rows($sql_result);
-    else
-      return FALSE;
-    }
-
-
-  function affected_rows()
-    {
-    if (!$this->db_link)
-      return FALSE;
-
-    return mysql_affected_rows($this->db_link);
-    }
-
-
-  function insert_id()
-    {
-    if (!$this->db_link)
-      return FALSE;
-
-    return mysql_insert_id($this->db_link);
-    }
-
-
-  function fetch_assoc($res_id=NULL)
-    {
-    $sql_result = $this->_get_result($res_id);
-    
-    if ($sql_result)
-      return mysql_fetch_assoc($sql_result);
-    else
-      return FALSE;
-    }
-
-
-  function seek($res_id=NULL, $row=0)
-    {
-    $sql_result = $this->_get_result($res_id);
-    
-    if ($sql_result)
-      return mysql_data_seek($sql_result, $row);
-    else
-      return FALSE;
-    }
-
-
-
-  function _add_result($res, $query)
-    {
-    // sql error occured
-    if ($res===FALSE)
-      {
-      $sql_error = mysql_error($this->db_link);
-      raise_error(array('code' => 500,
-                        'type' => 'mysql',
-                        'line' => __LINE__,
-                        'file' => __FILE__,
-                        'message' => $sql_error."; QUERY: ".preg_replace('/[\r\n]+\s*/', ' ', $query)), TRUE, FALSE);
-      
-      return FALSE;
-      }
-    else
-      {
-      $res_id = sizeof($this->a_query_results);
-      $this->a_query_results[$res_id] = $res;
-      $this->last_res_id = $res_id;
-
-      return $res_id;
-      }
-    }
-
-
-  function _get_result($res_id)
-    {
-    if ($res_id===NULL)
-      $res_id = $this->last_res_id;
-
-    if ($res_id && isset($this->a_query_results[$res_id]))
-      return $this->a_query_results[$res_id];
-    else
-      return FALSE;
-    }
-
-  }
-
-
-?>
\ No newline at end of file
diff --git a/program/lib/DB.php b/program/lib/DB.php
new file mode 100644
index 000000000..e2beecaf2
--- /dev/null
+++ b/program/lib/DB.php
@@ -0,0 +1,1388 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Database independent query interface
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Tomas V.V.Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the PEAR class so it can be extended from
+ */
+require_once 'PEAR.php';
+
+
+// {{{ constants
+// {{{ error codes
+
+/**#@+
+ * One of PEAR DB's portable error codes.
+ * @see DB_common::errorCode(), DB::errorMessage()
+ *
+ * {@internal If you add an error code here, make sure you also add a textual
+ * version of it in DB::errorMessage().}}
+ */
+
+/**
+ * The code returned by many methods upon success
+ */
+define('DB_OK', 1);
+
+/**
+ * Unkown error
+ */
+define('DB_ERROR', -1);
+
+/**
+ * Syntax error
+ */
+define('DB_ERROR_SYNTAX', -2);
+
+/**
+ * Tried to insert a duplicate value into a primary or unique index
+ */
+define('DB_ERROR_CONSTRAINT', -3);
+
+/**
+ * An identifier in the query refers to a non-existant object
+ */
+define('DB_ERROR_NOT_FOUND', -4);
+
+/**
+ * Tried to create a duplicate object
+ */
+define('DB_ERROR_ALREADY_EXISTS', -5);
+
+/**
+ * The current driver does not support the action you attempted
+ */
+define('DB_ERROR_UNSUPPORTED', -6);
+
+/**
+ * The number of parameters does not match the number of placeholders
+ */
+define('DB_ERROR_MISMATCH', -7);
+
+/**
+ * A literal submitted did not match the data type expected
+ */
+define('DB_ERROR_INVALID', -8);
+
+/**
+ * The current DBMS does not support the action you attempted
+ */
+define('DB_ERROR_NOT_CAPABLE', -9);
+
+/**
+ * A literal submitted was too long so the end of it was removed
+ */
+define('DB_ERROR_TRUNCATED', -10);
+
+/**
+ * A literal number submitted did not match the data type expected
+ */
+define('DB_ERROR_INVALID_NUMBER', -11);
+
+/**
+ * A literal date submitted did not match the data type expected
+ */
+define('DB_ERROR_INVALID_DATE', -12);
+
+/**
+ * Attempt to divide something by zero
+ */
+define('DB_ERROR_DIVZERO', -13);
+
+/**
+ * A database needs to be selected
+ */
+define('DB_ERROR_NODBSELECTED', -14);
+
+/**
+ * Could not create the object requested
+ */
+define('DB_ERROR_CANNOT_CREATE', -15);
+
+/**
+ * Could not drop the database requested because it does not exist
+ */
+define('DB_ERROR_CANNOT_DROP', -17);
+
+/**
+ * An identifier in the query refers to a non-existant table
+ */
+define('DB_ERROR_NOSUCHTABLE', -18);
+
+/**
+ * An identifier in the query refers to a non-existant column
+ */
+define('DB_ERROR_NOSUCHFIELD', -19);
+
+/**
+ * The data submitted to the method was inappropriate
+ */
+define('DB_ERROR_NEED_MORE_DATA', -20);
+
+/**
+ * The attempt to lock the table failed
+ */
+define('DB_ERROR_NOT_LOCKED', -21);
+
+/**
+ * The number of columns doesn't match the number of values
+ */
+define('DB_ERROR_VALUE_COUNT_ON_ROW', -22);
+
+/**
+ * The DSN submitted has problems
+ */
+define('DB_ERROR_INVALID_DSN', -23);
+
+/**
+ * Could not connect to the database
+ */
+define('DB_ERROR_CONNECT_FAILED', -24);
+
+/**
+ * The PHP extension needed for this DBMS could not be found
+ */
+define('DB_ERROR_EXTENSION_NOT_FOUND',-25);
+
+/**
+ * The present user has inadequate permissions to perform the task requestd
+ */
+define('DB_ERROR_ACCESS_VIOLATION', -26);
+
+/**
+ * The database requested does not exist
+ */
+define('DB_ERROR_NOSUCHDB', -27);
+
+/**
+ * Tried to insert a null value into a column that doesn't allow nulls
+ */
+define('DB_ERROR_CONSTRAINT_NOT_NULL',-29);
+/**#@-*/
+
+
+// }}}
+// {{{ prepared statement-related
+
+
+/**#@+
+ * Identifiers for the placeholders used in prepared statements.
+ * @see DB_common::prepare()
+ */
+
+/**
+ * Indicates a scalar (<kbd>?</kbd>) placeholder was used
+ *
+ * Quote and escape the value as necessary.
+ */
+define('DB_PARAM_SCALAR', 1);
+
+/**
+ * Indicates an opaque (<kbd>&</kbd>) placeholder was used
+ *
+ * The value presented is a file name.  Extract the contents of that file
+ * and place them in this column.
+ */
+define('DB_PARAM_OPAQUE', 2);
+
+/**
+ * Indicates a misc (<kbd>!</kbd>) placeholder was used
+ *
+ * The value should not be quoted or escaped.
+ */
+define('DB_PARAM_MISC',   3);
+/**#@-*/
+
+
+// }}}
+// {{{ binary data-related
+
+
+/**#@+
+ * The different ways of returning binary data from queries.
+ */
+
+/**
+ * Sends the fetched data straight through to output
+ */
+define('DB_BINMODE_PASSTHRU', 1);
+
+/**
+ * Lets you return data as usual
+ */
+define('DB_BINMODE_RETURN', 2);
+
+/**
+ * Converts the data to hex format before returning it
+ *
+ * For example the string "123" would become "313233".
+ */
+define('DB_BINMODE_CONVERT', 3);
+/**#@-*/
+
+
+// }}}
+// {{{ fetch modes
+
+
+/**#@+
+ * Fetch Modes.
+ * @see DB_common::setFetchMode()
+ */
+
+/**
+ * Indicates the current default fetch mode should be used
+ * @see DB_common::$fetchmode
+ */
+define('DB_FETCHMODE_DEFAULT', 0);
+
+/**
+ * Column data indexed by numbers, ordered from 0 and up
+ */
+define('DB_FETCHMODE_ORDERED', 1);
+
+/**
+ * Column data indexed by column names
+ */
+define('DB_FETCHMODE_ASSOC', 2);
+
+/**
+ * Column data as object properties
+ */
+define('DB_FETCHMODE_OBJECT', 3);
+
+/**
+ * For multi-dimensional results, make the column name the first level
+ * of the array and put the row number in the second level of the array
+ *
+ * This is flipped from the normal behavior, which puts the row numbers
+ * in the first level of the array and the column names in the second level.
+ */
+define('DB_FETCHMODE_FLIPPED', 4);
+/**#@-*/
+
+/**#@+
+ * Old fetch modes.  Left here for compatibility.
+ */
+define('DB_GETMODE_ORDERED', DB_FETCHMODE_ORDERED);
+define('DB_GETMODE_ASSOC',   DB_FETCHMODE_ASSOC);
+define('DB_GETMODE_FLIPPED', DB_FETCHMODE_FLIPPED);
+/**#@-*/
+
+
+// }}}
+// {{{ tableInfo() && autoPrepare()-related
+
+
+/**#@+
+ * The type of information to return from the tableInfo() method.
+ *
+ * Bitwised constants, so they can be combined using <kbd>|</kbd>
+ * and removed using <kbd>^</kbd>.
+ *
+ * @see DB_common::tableInfo()
+ *
+ * {@internal Since the TABLEINFO constants are bitwised, if more of them are
+ * added in the future, make sure to adjust DB_TABLEINFO_FULL accordingly.}}
+ */
+define('DB_TABLEINFO_ORDER', 1);
+define('DB_TABLEINFO_ORDERTABLE', 2);
+define('DB_TABLEINFO_FULL', 3);
+/**#@-*/
+
+
+/**#@+
+ * The type of query to create with the automatic query building methods.
+ * @see DB_common::autoPrepare(), DB_common::autoExecute()
+ */
+define('DB_AUTOQUERY_INSERT', 1);
+define('DB_AUTOQUERY_UPDATE', 2);
+/**#@-*/
+
+
+// }}}
+// {{{ portability modes
+
+
+/**#@+
+ * Portability Modes.
+ *
+ * Bitwised constants, so they can be combined using <kbd>|</kbd>
+ * and removed using <kbd>^</kbd>.
+ *
+ * @see DB_common::setOption()
+ *
+ * {@internal Since the PORTABILITY constants are bitwised, if more of them are
+ * added in the future, make sure to adjust DB_PORTABILITY_ALL accordingly.}}
+ */
+
+/**
+ * Turn off all portability features
+ */
+define('DB_PORTABILITY_NONE', 0);
+
+/**
+ * Convert names of tables and fields to lower case
+ * when using the get*(), fetch*() and tableInfo() methods
+ */
+define('DB_PORTABILITY_LOWERCASE', 1);
+
+/**
+ * Right trim the data output by get*() and fetch*()
+ */
+define('DB_PORTABILITY_RTRIM', 2);
+
+/**
+ * Force reporting the number of rows deleted
+ */
+define('DB_PORTABILITY_DELETE_COUNT', 4);
+
+/**
+ * Enable hack that makes numRows() work in Oracle
+ */
+define('DB_PORTABILITY_NUMROWS', 8);
+
+/**
+ * Makes certain error messages in certain drivers compatible
+ * with those from other DBMS's
+ *
+ * + mysql, mysqli:  change unique/primary key constraints
+ *   DB_ERROR_ALREADY_EXISTS -> DB_ERROR_CONSTRAINT
+ *
+ * + odbc(access):  MS's ODBC driver reports 'no such field' as code
+ *   07001, which means 'too few parameters.'  When this option is on
+ *   that code gets mapped to DB_ERROR_NOSUCHFIELD.
+ */
+define('DB_PORTABILITY_ERRORS', 16);
+
+/**
+ * Convert null values to empty strings in data output by
+ * get*() and fetch*()
+ */
+define('DB_PORTABILITY_NULL_TO_EMPTY', 32);
+
+/**
+ * Turn on all portability features
+ */
+define('DB_PORTABILITY_ALL', 63);
+/**#@-*/
+
+// }}}
+
+
+// }}}
+// {{{ class DB
+
+/**
+ * Database independent query interface
+ *
+ * The main "DB" class is simply a container class with some static
+ * methods for creating DB objects as well as some utility functions
+ * common to all parts of DB.
+ *
+ * The object model of DB is as follows (indentation means inheritance):
+ * <pre>
+ * DB           The main DB class.  This is simply a utility class
+ *              with some "static" methods for creating DB objects as
+ *              well as common utility functions for other DB classes.
+ *
+ * DB_common    The base for each DB implementation.  Provides default
+ * |            implementations (in OO lingo virtual methods) for
+ * |            the actual DB implementations as well as a bunch of
+ * |            query utility functions.
+ * |
+ * +-DB_mysql   The DB implementation for MySQL.  Inherits DB_common.
+ *              When calling DB::factory or DB::connect for MySQL
+ *              connections, the object returned is an instance of this
+ *              class.
+ * </pre>
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Tomas V.V.Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB
+{
+    // {{{ &factory()
+
+    /**
+     * Create a new DB object for the specified database type but don't
+     * connect to the database
+     *
+     * @param string $type     the database type (eg "mysql")
+     * @param array  $options  an associative array of option names and values
+     *
+     * @return object  a new DB object.  A DB_Error object on failure.
+     *
+     * @see DB_common::setOption()
+     */
+    function &factory($type, $options = false)
+    {
+        if (!is_array($options)) {
+            $options = array('persistent' => $options);
+        }
+
+        if (isset($options['debug']) && $options['debug'] >= 2) {
+            // expose php errors with sufficient debug level
+            include_once "DB/{$type}.php";
+        } else {
+            @include_once "DB/{$type}.php";
+        }
+
+        $classname = "DB_${type}";
+
+        if (!class_exists($classname)) {
+            $tmp = PEAR::raiseError(null, DB_ERROR_NOT_FOUND, null, null,
+                                    "Unable to include the DB/{$type}.php"
+                                    . " file for '$dsn'",
+                                    'DB_Error', true);
+            return $tmp;
+        }
+
+        @$obj =& new $classname;
+
+        foreach ($options as $option => $value) {
+            $test = $obj->setOption($option, $value);
+            if (DB::isError($test)) {
+                return $test;
+            }
+        }
+
+        return $obj;
+    }
+
+    // }}}
+    // {{{ &connect()
+
+    /**
+     * Create a new DB object including a connection to the specified database
+     *
+     * Example 1.
+     * <code>
+     * require_once 'DB.php';
+     *
+     * $dsn = 'pgsql://user:password@host/database';
+     * $options = array(
+     *     'debug'       => 2,
+     *     'portability' => DB_PORTABILITY_ALL,
+     * );
+     *
+     * $db =& DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param mixed $dsn      the string "data source name" or array in the
+     *                         format returned by DB::parseDSN()
+     * @param array $options  an associative array of option names and values
+     *
+     * @return object  a new DB object.  A DB_Error object on failure.
+     *
+     * @uses DB_dbase::connect(), DB_fbsql::connect(), DB_ibase::connect(),
+     *       DB_ifx::connect(), DB_msql::connect(), DB_mssql::connect(),
+     *       DB_mysql::connect(), DB_mysqli::connect(), DB_oci8::connect(),
+     *       DB_odbc::connect(), DB_pgsql::connect(), DB_sqlite::connect(),
+     *       DB_sybase::connect()
+     *
+     * @uses DB::parseDSN(), DB_common::setOption(), PEAR::isError()
+     */
+    function &connect($dsn, $options = array())
+    {
+        $dsninfo = DB::parseDSN($dsn);
+        $type = $dsninfo['phptype'];
+
+        if (!is_array($options)) {
+            /*
+             * For backwards compatibility.  $options used to be boolean,
+             * indicating whether the connection should be persistent.
+             */
+            $options = array('persistent' => $options);
+        }
+
+        if (isset($options['debug']) && $options['debug'] >= 2) {
+            // expose php errors with sufficient debug level
+            include_once "DB/${type}.php";
+        } else {
+            @include_once "DB/${type}.php";
+        }
+
+        $classname = "DB_${type}";
+        if (!class_exists($classname)) {
+            $tmp = PEAR::raiseError(null, DB_ERROR_NOT_FOUND, null, null,
+                                    "Unable to include the DB/{$type}.php"
+                                    . " file for '$dsn'",
+                                    'DB_Error', true);
+            return $tmp;
+        }
+
+        @$obj =& new $classname;
+
+        foreach ($options as $option => $value) {
+            $test = $obj->setOption($option, $value);
+            if (DB::isError($test)) {
+                return $test;
+            }
+        }
+
+        $err = $obj->connect($dsninfo, $obj->getOption('persistent'));
+        if (DB::isError($err)) {
+            $err->addUserInfo($dsn);
+            return $err;
+        }
+
+        return $obj;
+    }
+
+    // }}}
+    // {{{ apiVersion()
+
+    /**
+     * Return the DB API version
+     *
+     * @return string  the DB API version number
+     */
+    function apiVersion()
+    {
+        return '@package_version@';
+    }
+
+    // }}}
+    // {{{ isError()
+
+    /**
+     * Determines if a variable is a DB_Error object
+     *
+     * @param mixed $value  the variable to check
+     *
+     * @return bool  whether $value is DB_Error object
+     */
+    function isError($value)
+    {
+        return is_a($value, 'DB_Error');
+    }
+
+    // }}}
+    // {{{ isConnection()
+
+    /**
+     * Determines if a value is a DB_<driver> object
+     *
+     * @param mixed $value  the value to test
+     *
+     * @return bool  whether $value is a DB_<driver> object
+     */
+    function isConnection($value)
+    {
+        return (is_object($value) &&
+                is_subclass_of($value, 'db_common') &&
+                method_exists($value, 'simpleQuery'));
+    }
+
+    // }}}
+    // {{{ isManip()
+
+    /**
+     * Tell whether a query is a data manipulation or data definition query
+     *
+     * Examples of data manipulation queries are INSERT, UPDATE and DELETE.
+     * Examples of data definition queries are CREATE, DROP, ALTER, GRANT,
+     * REVOKE.
+     *
+     * @param string $query  the query
+     *
+     * @return boolean  whether $query is a data manipulation query
+     */
+    function isManip($query)
+    {
+        $manips = 'INSERT|UPDATE|DELETE|REPLACE|'
+                . 'CREATE|DROP|'
+                . 'LOAD DATA|SELECT .* INTO|COPY|'
+                . 'ALTER|GRANT|REVOKE|'
+                . 'LOCK|UNLOCK';
+        if (preg_match('/^\s*"?(' . $manips . ')\s+/i', $query)) {
+            return true;
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ errorMessage()
+
+    /**
+     * Return a textual error message for a DB error code
+     *
+     * @param integer $value  the DB error code
+     *
+     * @return string  the error message or false if the error code was
+     *                  not recognized
+     */
+    function errorMessage($value)
+    {
+        static $errorMessages;
+        if (!isset($errorMessages)) {
+            $errorMessages = array(
+                DB_ERROR                    => 'unknown error',
+                DB_ERROR_ACCESS_VIOLATION   => 'insufficient permissions',
+                DB_ERROR_ALREADY_EXISTS     => 'already exists',
+                DB_ERROR_CANNOT_CREATE      => 'can not create',
+                DB_ERROR_CANNOT_DROP        => 'can not drop',
+                DB_ERROR_CONNECT_FAILED     => 'connect failed',
+                DB_ERROR_CONSTRAINT         => 'constraint violation',
+                DB_ERROR_CONSTRAINT_NOT_NULL=> 'null value violates not-null constraint',
+                DB_ERROR_DIVZERO            => 'division by zero',
+                DB_ERROR_EXTENSION_NOT_FOUND=> 'extension not found',
+                DB_ERROR_INVALID            => 'invalid',
+                DB_ERROR_INVALID_DATE       => 'invalid date or time',
+                DB_ERROR_INVALID_DSN        => 'invalid DSN',
+                DB_ERROR_INVALID_NUMBER     => 'invalid number',
+                DB_ERROR_MISMATCH           => 'mismatch',
+                DB_ERROR_NEED_MORE_DATA     => 'insufficient data supplied',
+                DB_ERROR_NODBSELECTED       => 'no database selected',
+                DB_ERROR_NOSUCHDB           => 'no such database',
+                DB_ERROR_NOSUCHFIELD        => 'no such field',
+                DB_ERROR_NOSUCHTABLE        => 'no such table',
+                DB_ERROR_NOT_CAPABLE        => 'DB backend not capable',
+                DB_ERROR_NOT_FOUND          => 'not found',
+                DB_ERROR_NOT_LOCKED         => 'not locked',
+                DB_ERROR_SYNTAX             => 'syntax error',
+                DB_ERROR_UNSUPPORTED        => 'not supported',
+                DB_ERROR_TRUNCATED          => 'truncated',
+                DB_ERROR_VALUE_COUNT_ON_ROW => 'value count on row',
+                DB_OK                       => 'no error',
+            );
+        }
+
+        if (DB::isError($value)) {
+            $value = $value->getCode();
+        }
+
+        return isset($errorMessages[$value]) ? $errorMessages[$value]
+                     : $errorMessages[DB_ERROR];
+    }
+
+    // }}}
+    // {{{ parseDSN()
+
+    /**
+     * Parse a data source name
+     *
+     * Additional keys can be added by appending a URI query string to the
+     * end of the DSN.
+     *
+     * The format of the supplied DSN is in its fullest form:
+     * <code>
+     *  phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true
+     * </code>
+     *
+     * Most variations are allowed:
+     * <code>
+     *  phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644
+     *  phptype://username:password@hostspec/database_name
+     *  phptype://username:password@hostspec
+     *  phptype://username@hostspec
+     *  phptype://hostspec/database
+     *  phptype://hostspec
+     *  phptype(dbsyntax)
+     *  phptype
+     * </code>
+     *
+     * @param string $dsn Data Source Name to be parsed
+     *
+     * @return array an associative array with the following keys:
+     *  + phptype:  Database backend used in PHP (mysql, odbc etc.)
+     *  + dbsyntax: Database used with regards to SQL syntax etc.
+     *  + protocol: Communication protocol to use (tcp, unix etc.)
+     *  + hostspec: Host specification (hostname[:port])
+     *  + database: Database to use on the DBMS server
+     *  + username: User name for login
+     *  + password: Password for login
+     */
+    function parseDSN($dsn)
+    {
+        $parsed = array(
+            'phptype'  => false,
+            'dbsyntax' => false,
+            'username' => false,
+            'password' => false,
+            'protocol' => false,
+            'hostspec' => false,
+            'port'     => false,
+            'socket'   => false,
+            'database' => false,
+        );
+
+        if (is_array($dsn)) {
+            $dsn = array_merge($parsed, $dsn);
+            if (!$dsn['dbsyntax']) {
+                $dsn['dbsyntax'] = $dsn['phptype'];
+            }
+            return $dsn;
+        }
+
+        // Find phptype and dbsyntax
+        if (($pos = strpos($dsn, '://')) !== false) {
+            $str = substr($dsn, 0, $pos);
+            $dsn = substr($dsn, $pos + 3);
+        } else {
+            $str = $dsn;
+            $dsn = null;
+        }
+
+        // Get phptype and dbsyntax
+        // $str => phptype(dbsyntax)
+        if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
+            $parsed['phptype']  = $arr[1];
+            $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2];
+        } else {
+            $parsed['phptype']  = $str;
+            $parsed['dbsyntax'] = $str;
+        }
+
+        if (!count($dsn)) {
+            return $parsed;
+        }
+
+        // Get (if found): username and password
+        // $dsn => username:password@protocol+hostspec/database
+        if (($at = strrpos($dsn,'@')) !== false) {
+            $str = substr($dsn, 0, $at);
+            $dsn = substr($dsn, $at + 1);
+            if (($pos = strpos($str, ':')) !== false) {
+                $parsed['username'] = rawurldecode(substr($str, 0, $pos));
+                $parsed['password'] = rawurldecode(substr($str, $pos + 1));
+            } else {
+                $parsed['username'] = rawurldecode($str);
+            }
+        }
+
+        // Find protocol and hostspec
+
+        if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) {
+            // $dsn => proto(proto_opts)/database
+            $proto       = $match[1];
+            $proto_opts  = $match[2] ? $match[2] : false;
+            $dsn         = $match[3];
+
+        } else {
+            // $dsn => protocol+hostspec/database (old format)
+            if (strpos($dsn, '+') !== false) {
+                list($proto, $dsn) = explode('+', $dsn, 2);
+            }
+            if (strpos($dsn, '/') !== false) {
+                list($proto_opts, $dsn) = explode('/', $dsn, 2);
+            } else {
+                $proto_opts = $dsn;
+                $dsn = null;
+            }
+        }
+
+        // process the different protocol options
+        $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp';
+        $proto_opts = rawurldecode($proto_opts);
+        if ($parsed['protocol'] == 'tcp') {
+            if (strpos($proto_opts, ':') !== false) {
+                list($parsed['hostspec'],
+                     $parsed['port']) = explode(':', $proto_opts);
+            } else {
+                $parsed['hostspec'] = $proto_opts;
+            }
+        } elseif ($parsed['protocol'] == 'unix') {
+            $parsed['socket'] = $proto_opts;
+        }
+
+        // Get dabase if any
+        // $dsn => database
+        if ($dsn) {
+            if (($pos = strpos($dsn, '?')) === false) {
+                // /database
+                $parsed['database'] = rawurldecode($dsn);
+            } else {
+                // /database?param1=value1&param2=value2
+                $parsed['database'] = rawurldecode(substr($dsn, 0, $pos));
+                $dsn = substr($dsn, $pos + 1);
+                if (strpos($dsn, '&') !== false) {
+                    $opts = explode('&', $dsn);
+                } else { // database?param1=value1
+                    $opts = array($dsn);
+                }
+                foreach ($opts as $opt) {
+                    list($key, $value) = explode('=', $opt);
+                    if (!isset($parsed[$key])) {
+                        // don't allow params overwrite
+                        $parsed[$key] = rawurldecode($value);
+                    }
+                }
+            }
+        }
+
+        return $parsed;
+    }
+
+    // }}}
+}
+
+// }}}
+// {{{ class DB_Error
+
+/**
+ * DB_Error implements a class for reporting portable database error
+ * messages
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_Error extends PEAR_Error
+{
+    // {{{ constructor
+
+    /**
+     * DB_Error constructor
+     *
+     * @param mixed $code       DB error code, or string with error message
+     * @param int   $mode       what "error mode" to operate in
+     * @param int   $level      what error level to use for $mode &
+     *                           PEAR_ERROR_TRIGGER
+     * @param mixed $debuginfo  additional debug info, such as the last query
+     *
+     * @see PEAR_Error
+     */
+    function DB_Error($code = DB_ERROR, $mode = PEAR_ERROR_RETURN,
+                      $level = E_USER_NOTICE, $debuginfo = null)
+    {
+        if (is_int($code)) {
+            $this->PEAR_Error('DB Error: ' . DB::errorMessage($code), $code,
+                              $mode, $level, $debuginfo);
+        } else {
+            $this->PEAR_Error("DB Error: $code", DB_ERROR,
+                              $mode, $level, $debuginfo);
+        }
+    }
+
+    // }}}
+}
+
+// }}}
+// {{{ class DB_result
+
+/**
+ * This class implements a wrapper for a DB result set
+ *
+ * A new instance of this class will be returned by the DB implementation
+ * after processing a query that returns data.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_result
+{
+    // {{{ properties
+
+    /**
+     * Should results be freed automatically when there are no more rows?
+     * @var boolean
+     * @see DB_common::$options
+     */
+    var $autofree;
+
+    /**
+     * A reference to the DB_<driver> object
+     * @var object
+     */
+    var $dbh;
+
+    /**
+     * The current default fetch mode
+     * @var integer
+     * @see DB_common::$fetchmode
+     */
+    var $fetchmode;
+
+    /**
+     * The name of the class into which results should be fetched when
+     * DB_FETCHMODE_OBJECT is in effect
+     *
+     * @var string
+     * @see DB_common::$fetchmode_object_class
+     */
+    var $fetchmode_object_class;
+
+    /**
+     * The number of rows to fetch from a limit query
+     * @var integer
+     */
+    var $limit_count = null;
+
+    /**
+     * The row to start fetching from in limit queries
+     * @var integer
+     */
+    var $limit_from = null;
+
+    /**
+     * The execute parameters that created this result
+     * @var array
+     * @since Property available since Release 1.7.0
+     */
+    var $parameters;
+
+    /**
+     * The query string that created this result
+     *
+     * Copied here incase it changes in $dbh, which is referenced
+     *
+     * @var string
+     * @since Property available since Release 1.7.0
+     */
+    var $query;
+
+    /**
+     * The query result resource id created by PHP
+     * @var resource
+     */
+    var $result;
+
+    /**
+     * The present row being dealt with
+     * @var integer
+     */
+    var $row_counter = null;
+
+    /**
+     * The prepared statement resource id created by PHP in $dbh
+     *
+     * This resource is only available when the result set was created using
+     * a driver's native execute() method, not PEAR DB's emulated one.
+     *
+     * Copied here incase it changes in $dbh, which is referenced
+     *
+     * {@internal  Mainly here because the InterBase/Firebird API is only
+     * able to retrieve data from result sets if the statemnt handle is
+     * still in scope.}}
+     *
+     * @var resource
+     * @since Property available since Release 1.7.0
+     */
+    var $statement;
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor sets the object's properties
+     *
+     * @param object   &$dbh     the DB object reference
+     * @param resource $result   the result resource id
+     * @param array    $options  an associative array with result options
+     *
+     * @return void
+     */
+    function DB_result(&$dbh, $result, $options = array())
+    {
+        $this->autofree    = $dbh->options['autofree'];
+        $this->dbh         = &$dbh;
+        $this->fetchmode   = $dbh->fetchmode;
+        $this->fetchmode_object_class = $dbh->fetchmode_object_class;
+        $this->parameters  = $dbh->last_parameters;
+        $this->query       = $dbh->last_query;
+        $this->result      = $result;
+        $this->statement   = empty($dbh->last_stmt) ? null : $dbh->last_stmt;
+        foreach ($options as $key => $value) {
+            $this->setOption($key, $value);
+        }
+    }
+
+    /**
+     * Set options for the DB_result object
+     *
+     * @param string $key    the option to set
+     * @param mixed  $value  the value to set the option to
+     *
+     * @return void
+     */
+    function setOption($key, $value = null)
+    {
+        switch ($key) {
+            case 'limit_from':
+                $this->limit_from = $value;
+                break;
+            case 'limit_count':
+                $this->limit_count = $value;
+        }
+    }
+
+    // }}}
+    // {{{ fetchRow()
+
+    /**
+     * Fetch a row of data and return it by reference into an array
+     *
+     * The type of array returned can be controlled either by setting this
+     * method's <var>$fetchmode</var> parameter or by changing the default
+     * fetch mode setFetchMode() before calling this method.
+     *
+     * There are two options for standardizing the information returned
+     * from databases, ensuring their values are consistent when changing
+     * DBMS's.  These portability options can be turned on when creating a
+     * new DB object or by using setOption().
+     *
+     *   + <var>DB_PORTABILITY_LOWERCASE</var>
+     *     convert names of fields to lower case
+     *
+     *   + <var>DB_PORTABILITY_RTRIM</var>
+     *     right trim the data
+     *
+     * @param int $fetchmode  the constant indicating how to format the data
+     * @param int $rownum     the row number to fetch (index starts at 0)
+     *
+     * @return mixed  an array or object containing the row's data,
+     *                 NULL when the end of the result set is reached
+     *                 or a DB_Error object on failure.
+     *
+     * @see DB_common::setOption(), DB_common::setFetchMode()
+     */
+    function &fetchRow($fetchmode = DB_FETCHMODE_DEFAULT, $rownum = null)
+    {
+        if ($fetchmode === DB_FETCHMODE_DEFAULT) {
+            $fetchmode = $this->fetchmode;
+        }
+        if ($fetchmode === DB_FETCHMODE_OBJECT) {
+            $fetchmode = DB_FETCHMODE_ASSOC;
+            $object_class = $this->fetchmode_object_class;
+        }
+        if ($this->limit_from !== null) {
+            if ($this->row_counter === null) {
+                $this->row_counter = $this->limit_from;
+                // Skip rows
+                if ($this->dbh->features['limit'] === false) {
+                    $i = 0;
+                    while ($i++ < $this->limit_from) {
+                        $this->dbh->fetchInto($this->result, $arr, $fetchmode);
+                    }
+                }
+            }
+            if ($this->row_counter >= ($this->limit_from + $this->limit_count))
+            {
+                if ($this->autofree) {
+                    $this->free();
+                }
+                $tmp = null;
+                return $tmp;
+            }
+            if ($this->dbh->features['limit'] === 'emulate') {
+                $rownum = $this->row_counter;
+            }
+            $this->row_counter++;
+        }
+        $res = $this->dbh->fetchInto($this->result, $arr, $fetchmode, $rownum);
+        if ($res === DB_OK) {
+            if (isset($object_class)) {
+                // The default mode is specified in the
+                // DB_common::fetchmode_object_class property
+                if ($object_class == 'stdClass') {
+                    $arr = (object) $arr;
+                } else {
+                    $arr = &new $object_class($arr);
+                }
+            }
+            return $arr;
+        }
+        if ($res == null && $this->autofree) {
+            $this->free();
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Fetch a row of data into an array which is passed by reference
+     *
+     * The type of array returned can be controlled either by setting this
+     * method's <var>$fetchmode</var> parameter or by changing the default
+     * fetch mode setFetchMode() before calling this method.
+     *
+     * There are two options for standardizing the information returned
+     * from databases, ensuring their values are consistent when changing
+     * DBMS's.  These portability options can be turned on when creating a
+     * new DB object or by using setOption().
+     *
+     *   + <var>DB_PORTABILITY_LOWERCASE</var>
+     *     convert names of fields to lower case
+     *
+     *   + <var>DB_PORTABILITY_RTRIM</var>
+     *     right trim the data
+     *
+     * @param array &$arr       the variable where the data should be placed
+     * @param int   $fetchmode  the constant indicating how to format the data
+     * @param int   $rownum     the row number to fetch (index starts at 0)
+     *
+     * @return mixed  DB_OK if a row is processed, NULL when the end of the
+     *                 result set is reached or a DB_Error object on failure
+     *
+     * @see DB_common::setOption(), DB_common::setFetchMode()
+     */
+    function fetchInto(&$arr, $fetchmode = DB_FETCHMODE_DEFAULT, $rownum = null)
+    {
+        if ($fetchmode === DB_FETCHMODE_DEFAULT) {
+            $fetchmode = $this->fetchmode;
+        }
+        if ($fetchmode === DB_FETCHMODE_OBJECT) {
+            $fetchmode = DB_FETCHMODE_ASSOC;
+            $object_class = $this->fetchmode_object_class;
+        }
+        if ($this->limit_from !== null) {
+            if ($this->row_counter === null) {
+                $this->row_counter = $this->limit_from;
+                // Skip rows
+                if ($this->dbh->features['limit'] === false) {
+                    $i = 0;
+                    while ($i++ < $this->limit_from) {
+                        $this->dbh->fetchInto($this->result, $arr, $fetchmode);
+                    }
+                }
+            }
+            if ($this->row_counter >= (
+                    $this->limit_from + $this->limit_count))
+            {
+                if ($this->autofree) {
+                    $this->free();
+                }
+                return null;
+            }
+            if ($this->dbh->features['limit'] === 'emulate') {
+                $rownum = $this->row_counter;
+            }
+
+            $this->row_counter++;
+        }
+        $res = $this->dbh->fetchInto($this->result, $arr, $fetchmode, $rownum);
+        if ($res === DB_OK) {
+            if (isset($object_class)) {
+                // default mode specified in the
+                // DB_common::fetchmode_object_class property
+                if ($object_class == 'stdClass') {
+                    $arr = (object) $arr;
+                } else {
+                    $arr = new $object_class($arr);
+                }
+            }
+            return DB_OK;
+        }
+        if ($res == null && $this->autofree) {
+            $this->free();
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Get the the number of columns in a result set
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     */
+    function numCols()
+    {
+        return $this->dbh->numCols($this->result);
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Get the number of rows in a result set
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function numRows()
+    {
+        if ($this->dbh->features['numrows'] === 'emulate'
+            && $this->dbh->options['portability'] & DB_PORTABILITY_NUMROWS)
+        {
+            if ($this->dbh->features['prepare']) {
+                $res = $this->dbh->query($this->query, $this->parameters);
+            } else {
+                $res = $this->dbh->query($this->query);
+            }
+            if (DB::isError($res)) {
+                return $res;
+            }
+            $i = 0;
+            while ($res->fetchInto($tmp, DB_FETCHMODE_ORDERED)) {
+                $i++;
+            }
+            return $i;
+        } else {
+            return $this->dbh->numRows($this->result);
+        }
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Get the next result if a batch of queries was executed
+     *
+     * @return bool  true if a new result is available or false if not
+     */
+    function nextResult()
+    {
+        return $this->dbh->nextResult($this->result);
+    }
+
+    // }}}
+    // {{{ free()
+
+    /**
+     * Frees the resources allocated for this result set
+     *
+     * @return bool  true on success.  A DB_Error object on failure.
+     */
+    function free()
+    {
+        $err = $this->dbh->freeResult($this->result);
+        if (DB::isError($err)) {
+            return $err;
+        }
+        $this->result = false;
+        $this->statement = false;
+        return true;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * @see DB_common::tableInfo()
+     * @deprecated Method deprecated some time before Release 1.2
+     */
+    function tableInfo($mode = null)
+    {
+        if (is_string($mode)) {
+            return $this->dbh->raiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+        return $this->dbh->tableInfo($this, $mode);
+    }
+
+    // }}}
+    // {{{ getQuery()
+
+    /**
+     * Determine the query string that created this result
+     *
+     * @return string  the query string
+     *
+     * @since Method available since Release 1.7.0
+     */
+    function getQuery()
+    {
+        return $this->query;
+    }
+
+    // }}}
+    // {{{ getRowCounter()
+
+    /**
+     * Tells which row number is currently being processed
+     *
+     * @return integer  the current row being looked at.  Starts at 1.
+     */
+    function getRowCounter()
+    {
+        return $this->row_counter;
+    }
+
+    // }}}
+}
+
+// }}}
+// {{{ class DB_row
+
+/**
+ * PEAR DB Row Object
+ *
+ * The object contains a row of data from a result set.  Each column's data
+ * is placed in a property named for the column.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ * @see        DB_common::setFetchMode()
+ */
+class DB_row
+{
+    // {{{ constructor
+
+    /**
+     * The constructor places a row's data into properties of this object
+     *
+     * @param array  the array containing the row's data
+     *
+     * @return void
+     */
+    function DB_row(&$arr)
+    {
+        foreach ($arr as $key => $value) {
+            $this->$key = &$arr[$key];
+        }
+    }
+
+    // }}}
+}
+
+// }}}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/common.php b/program/lib/DB/common.php
new file mode 100644
index 000000000..7988e7194
--- /dev/null
+++ b/program/lib/DB/common.php
@@ -0,0 +1,2157 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Contains the DB_common base class
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Tomas V.V. Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the PEAR class so it can be extended from
+ */
+require_once 'PEAR.php';
+
+/**
+ * DB_common is the base class from which each database driver class extends
+ *
+ * All common methods are declared here.  If a given DBMS driver contains
+ * a particular method, that method will overload the one here.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Tomas V.V. Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_common extends PEAR
+{
+    // {{{ properties
+
+    /**
+     * The current default fetch mode
+     * @var integer
+     */
+    var $fetchmode = DB_FETCHMODE_ORDERED;
+
+    /**
+     * The name of the class into which results should be fetched when
+     * DB_FETCHMODE_OBJECT is in effect
+     *
+     * @var string
+     */
+    var $fetchmode_object_class = 'stdClass';
+
+    /**
+     * Was a connection present when the object was serialized()?
+     * @var bool
+     * @see DB_common::__sleep(), DB_common::__wake()
+     */
+    var $was_connected = null;
+
+    /**
+     * The most recently executed query
+     * @var string
+     */
+    var $last_query = '';
+
+    /**
+     * Run-time configuration options
+     *
+     * The 'optimize' option has been deprecated.  Use the 'portability'
+     * option instead.
+     *
+     * @var array
+     * @see DB_common::setOption()
+     */
+    var $options = array(
+        'result_buffering' => 500,
+        'persistent' => false,
+        'ssl' => false,
+        'debug' => 0,
+        'seqname_format' => '%s_seq',
+        'autofree' => false,
+        'portability' => DB_PORTABILITY_NONE,
+        'optimize' => 'performance',  // Deprecated.  Use 'portability'.
+    );
+
+    /**
+     * The parameters from the most recently executed query
+     * @var array
+     * @since Property available since Release 1.7.0
+     */
+    var $last_parameters = array();
+
+    /**
+     * The elements from each prepared statement
+     * @var array
+     */
+    var $prepare_tokens = array();
+
+    /**
+     * The data types of the various elements in each prepared statement
+     * @var array
+     */
+    var $prepare_types = array();
+
+    /**
+     * The prepared queries
+     * @var array
+     */
+    var $prepared_queries = array();
+
+
+    // }}}
+    // {{{ DB_common
+
+    /**
+     * This constructor calls <kbd>$this->PEAR('DB_Error')</kbd>
+     *
+     * @return void
+     */
+    function DB_common()
+    {
+        $this->PEAR('DB_Error');
+    }
+
+    // }}}
+    // {{{ __sleep()
+
+    /**
+     * Automatically indicates which properties should be saved
+     * when PHP's serialize() function is called
+     *
+     * @return array  the array of properties names that should be saved
+     */
+    function __sleep()
+    {
+        if ($this->connection) {
+            // Don't disconnect(), people use serialize() for many reasons
+            $this->was_connected = true;
+        } else {
+            $this->was_connected = false;
+        }
+        if (isset($this->autocommit)) {
+            return array('autocommit',
+                         'dbsyntax',
+                         'dsn',
+                         'features',
+                         'fetchmode',
+                         'fetchmode_object_class',
+                         'options',
+                         'was_connected',
+                   );
+        } else {
+            return array('dbsyntax',
+                         'dsn',
+                         'features',
+                         'fetchmode',
+                         'fetchmode_object_class',
+                         'options',
+                         'was_connected',
+                   );
+        }
+    }
+
+    // }}}
+    // {{{ __wakeup()
+
+    /**
+     * Automatically reconnects to the database when PHP's unserialize()
+     * function is called
+     *
+     * The reconnection attempt is only performed if the object was connected
+     * at the time PHP's serialize() function was run.
+     *
+     * @return void
+     */
+    function __wakeup()
+    {
+        if ($this->was_connected) {
+            $this->connect($this->dsn, $this->options);
+        }
+    }
+
+    // }}}
+    // {{{ __toString()
+
+    /**
+     * Automatic string conversion for PHP 5
+     *
+     * @return string  a string describing the current PEAR DB object
+     *
+     * @since Method available since Release 1.7.0
+     */
+    function __toString()
+    {
+        $info = strtolower(get_class($this));
+        $info .=  ': (phptype=' . $this->phptype .
+                  ', dbsyntax=' . $this->dbsyntax .
+                  ')';
+        if ($this->connection) {
+            $info .= ' [connected]';
+        }
+        return $info;
+    }
+
+    // }}}
+    // {{{ toString()
+
+    /**
+     * DEPRECATED:  String conversion method
+     *
+     * @return string  a string describing the current PEAR DB object
+     *
+     * @deprecated Method deprecated in Release 1.7.0
+     */
+    function toString()
+    {
+        return $this->__toString();
+    }
+
+    // }}}
+    // {{{ quoteString()
+
+    /**
+     * DEPRECATED: Quotes a string so it can be safely used within string
+     * delimiters in a query
+     *
+     * @param string $string  the string to be quoted
+     *
+     * @return string  the quoted string
+     *
+     * @see DB_common::quoteSmart(), DB_common::escapeSimple()
+     * @deprecated Method deprecated some time before Release 1.2
+     */
+    function quoteString($string)
+    {
+        $string = $this->quote($string);
+        if ($string{0} == "'") {
+            return substr($string, 1, -1);
+        }
+        return $string;
+    }
+
+    // }}}
+    // {{{ quote()
+
+    /**
+     * DEPRECATED: Quotes a string so it can be safely used in a query
+     *
+     * @param string $string  the string to quote
+     *
+     * @return string  the quoted string or the string <samp>NULL</samp>
+     *                  if the value submitted is <kbd>null</kbd>.
+     *
+     * @see DB_common::quoteSmart(), DB_common::escapeSimple()
+     * @deprecated Deprecated in release 1.6.0
+     */
+    function quote($string = null)
+    {
+        return ($string === null) ? 'NULL'
+                                  : "'" . str_replace("'", "''", $string) . "'";
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * Delimiting style depends on which database driver is being used.
+     *
+     * NOTE: just because you CAN use delimited identifiers doesn't mean
+     * you SHOULD use them.  In general, they end up causing way more
+     * problems than they solve.
+     *
+     * Portability is broken by using the following characters inside
+     * delimited identifiers:
+     *   + backtick (<kbd>`</kbd>) -- due to MySQL
+     *   + double quote (<kbd>"</kbd>) -- due to Oracle
+     *   + brackets (<kbd>[</kbd> or <kbd>]</kbd>) -- due to Access
+     *
+     * Delimited identifiers are known to generally work correctly under
+     * the following drivers:
+     *   + mssql
+     *   + mysql
+     *   + mysqli
+     *   + oci8
+     *   + odbc(access)
+     *   + odbc(db2)
+     *   + pgsql
+     *   + sqlite
+     *   + sybase (must execute <kbd>set quoted_identifier on</kbd> sometime
+     *     prior to use)
+     *
+     * InterBase doesn't seem to be able to use delimited identifiers
+     * via PHP 4.  They work fine under PHP 5.
+     *
+     * @param string $str  the identifier name to be quoted
+     *
+     * @return string  the quoted identifier
+     *
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        return '"' . str_replace('"', '""', $str) . '"';
+    }
+
+    // }}}
+    // {{{ quoteSmart()
+
+    /**
+     * Formats input so it can be safely used in a query
+     *
+     * The output depends on the PHP data type of input and the database
+     * type being used.
+     *
+     * @param mixed $in  the data to be formatted
+     *
+     * @return mixed  the formatted data.  The format depends on the input's
+     *                 PHP type:
+     * <ul>
+     *  <li>
+     *    <kbd>input</kbd> -> <samp>returns</samp>
+     *  </li>
+     *  <li>
+     *    <kbd>null</kbd> -> the string <samp>NULL</samp>
+     *  </li>
+     *  <li>
+     *    <kbd>integer</kbd> or <kbd>double</kbd> -> the unquoted number
+     *  </li>
+     *  <li>
+     *    <kbd>bool</kbd> -> output depends on the driver in use
+     *    Most drivers return integers: <samp>1</samp> if
+     *    <kbd>true</kbd> or <samp>0</samp> if
+     *    <kbd>false</kbd>.
+     *    Some return strings: <samp>TRUE</samp> if
+     *    <kbd>true</kbd> or <samp>FALSE</samp> if
+     *    <kbd>false</kbd>.
+     *    Finally one returns strings: <samp>T</samp> if
+     *    <kbd>true</kbd> or <samp>F</samp> if
+     *    <kbd>false</kbd>. Here is a list of each DBMS,
+     *    the values returned and the suggested column type:
+     *    <ul>
+     *      <li>
+     *        <kbd>dbase</kbd> -> <samp>T/F</samp>
+     *        (<kbd>Logical</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>fbase</kbd> -> <samp>TRUE/FALSE</samp>
+     *        (<kbd>BOOLEAN</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>ibase</kbd> -> <samp>1/0</samp>
+     *        (<kbd>SMALLINT</kbd>) [1]
+     *      </li>
+     *      <li>
+     *        <kbd>ifx</kbd> -> <samp>1/0</samp>
+     *        (<kbd>SMALLINT</kbd>) [1]
+     *      </li>
+     *      <li>
+     *        <kbd>msql</kbd> -> <samp>1/0</samp>
+     *        (<kbd>INTEGER</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>mssql</kbd> -> <samp>1/0</samp>
+     *        (<kbd>BIT</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>mysql</kbd> -> <samp>1/0</samp>
+     *        (<kbd>TINYINT(1)</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>mysqli</kbd> -> <samp>1/0</samp>
+     *        (<kbd>TINYINT(1)</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>oci8</kbd> -> <samp>1/0</samp>
+     *        (<kbd>NUMBER(1)</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>odbc</kbd> -> <samp>1/0</samp>
+     *        (<kbd>SMALLINT</kbd>) [1]
+     *      </li>
+     *      <li>
+     *        <kbd>pgsql</kbd> -> <samp>TRUE/FALSE</samp>
+     *        (<kbd>BOOLEAN</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>sqlite</kbd> -> <samp>1/0</samp>
+     *        (<kbd>INTEGER</kbd>)
+     *      </li>
+     *      <li>
+     *        <kbd>sybase</kbd> -> <samp>1/0</samp>
+     *        (<kbd>TINYINT(1)</kbd>)
+     *      </li>
+     *    </ul>
+     *    [1] Accommodate the lowest common denominator because not all
+     *    versions of have <kbd>BOOLEAN</kbd>.
+     *  </li>
+     *  <li>
+     *    other (including strings and numeric strings) ->
+     *    the data with single quotes escaped by preceeding
+     *    single quotes, backslashes are escaped by preceeding
+     *    backslashes, then the whole string is encapsulated
+     *    between single quotes
+     *  </li>
+     * </ul>
+     *
+     * @see DB_common::escapeSimple()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteSmart($in)
+    {
+        if (is_int($in) || is_double($in)) {
+            return $in;
+        } elseif (is_bool($in)) {
+            return $in ? 1 : 0;
+        } elseif (is_null($in)) {
+            return 'NULL';
+        } else {
+            return "'" . $this->escapeSimple($in) . "'";
+        }
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * In SQLite, this makes things safe for inserts/updates, but may
+     * cause problems when performing text comparisons against columns
+     * containing binary data. See the
+     * {@link http://php.net/sqlite_escape_string PHP manual} for more info.
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function escapeSimple($str)
+    {
+        return str_replace("'", "''", $str);
+    }
+
+    // }}}
+    // {{{ provides()
+
+    /**
+     * Tells whether the present driver supports a given feature
+     *
+     * @param string $feature  the feature you're curious about
+     *
+     * @return bool  whether this driver supports $feature
+     */
+    function provides($feature)
+    {
+        return $this->features[$feature];
+    }
+
+    // }}}
+    // {{{ setFetchMode()
+
+    /**
+     * Sets the fetch mode that should be used by default for query results
+     *
+     * @param integer $fetchmode    DB_FETCHMODE_ORDERED, DB_FETCHMODE_ASSOC
+     *                               or DB_FETCHMODE_OBJECT
+     * @param string $object_class  the class name of the object to be returned
+     *                               by the fetch methods when the
+     *                               DB_FETCHMODE_OBJECT mode is selected.
+     *                               If no class is specified by default a cast
+     *                               to object from the assoc array row will be
+     *                               done.  There is also the posibility to use
+     *                               and extend the 'DB_row' class.
+     *
+     * @see DB_FETCHMODE_ORDERED, DB_FETCHMODE_ASSOC, DB_FETCHMODE_OBJECT
+     */
+    function setFetchMode($fetchmode, $object_class = 'stdClass')
+    {
+        switch ($fetchmode) {
+            case DB_FETCHMODE_OBJECT:
+                $this->fetchmode_object_class = $object_class;
+            case DB_FETCHMODE_ORDERED:
+            case DB_FETCHMODE_ASSOC:
+                $this->fetchmode = $fetchmode;
+                break;
+            default:
+                return $this->raiseError('invalid fetchmode mode');
+        }
+    }
+
+    // }}}
+    // {{{ setOption()
+
+    /**
+     * Sets run-time configuration options for PEAR DB
+     *
+     * Options, their data types, default values and description:
+     * <ul>
+     * <li>
+     * <var>autofree</var> <kbd>boolean</kbd> = <samp>false</samp>
+     *      <br />should results be freed automatically when there are no
+     *            more rows?
+     * </li><li>
+     * <var>result_buffering</var> <kbd>integer</kbd> = <samp>500</samp>
+     *      <br />how many rows of the result set should be buffered?
+     *      <br />In mysql: mysql_unbuffered_query() is used instead of
+     *            mysql_query() if this value is 0.  (Release 1.7.0)
+     *      <br />In oci8: this value is passed to ocisetprefetch().
+     *            (Release 1.7.0)
+     * </li><li>
+     * <var>debug</var> <kbd>integer</kbd> = <samp>0</samp>
+     *      <br />debug level
+     * </li><li>
+     * <var>persistent</var> <kbd>boolean</kbd> = <samp>false</samp>
+     *      <br />should the connection be persistent?
+     * </li><li>
+     * <var>portability</var> <kbd>integer</kbd> = <samp>DB_PORTABILITY_NONE</samp>
+     *      <br />portability mode constant (see below)
+     * </li><li>
+     * <var>seqname_format</var> <kbd>string</kbd> = <samp>%s_seq</samp>
+     *      <br />the sprintf() format string used on sequence names.  This
+     *            format is applied to sequence names passed to
+     *            createSequence(), nextID() and dropSequence().
+     * </li><li>
+     * <var>ssl</var> <kbd>boolean</kbd> = <samp>false</samp>
+     *      <br />use ssl to connect?
+     * </li>
+     * </ul>
+     *
+     * -----------------------------------------
+     *
+     * PORTABILITY MODES
+     *
+     * These modes are bitwised, so they can be combined using <kbd>|</kbd>
+     * and removed using <kbd>^</kbd>.  See the examples section below on how
+     * to do this.
+     *
+     * <samp>DB_PORTABILITY_NONE</samp>
+     * turn off all portability features
+     *
+     * This mode gets automatically turned on if the deprecated
+     * <var>optimize</var> option gets set to <samp>performance</samp>.
+     *
+     *
+     * <samp>DB_PORTABILITY_LOWERCASE</samp>
+     * convert names of tables and fields to lower case when using
+     * <kbd>get*()</kbd>, <kbd>fetch*()</kbd> and <kbd>tableInfo()</kbd>
+     *
+     * This mode gets automatically turned on in the following databases
+     * if the deprecated option <var>optimize</var> gets set to
+     * <samp>portability</samp>:
+     * + oci8
+     *
+     *
+     * <samp>DB_PORTABILITY_RTRIM</samp>
+     * right trim the data output by <kbd>get*()</kbd> <kbd>fetch*()</kbd>
+     *
+     *
+     * <samp>DB_PORTABILITY_DELETE_COUNT</samp>
+     * force reporting the number of rows deleted
+     *
+     * Some DBMS's don't count the number of rows deleted when performing
+     * simple <kbd>DELETE FROM tablename</kbd> queries.  This portability
+     * mode tricks such DBMS's into telling the count by adding
+     * <samp>WHERE 1=1</samp> to the end of <kbd>DELETE</kbd> queries.
+     *
+     * This mode gets automatically turned on in the following databases
+     * if the deprecated option <var>optimize</var> gets set to
+     * <samp>portability</samp>:
+     * + fbsql
+     * + mysql
+     * + mysqli
+     * + sqlite
+     *
+     *
+     * <samp>DB_PORTABILITY_NUMROWS</samp>
+     * enable hack that makes <kbd>numRows()</kbd> work in Oracle
+     *
+     * This mode gets automatically turned on in the following databases
+     * if the deprecated option <var>optimize</var> gets set to
+     * <samp>portability</samp>:
+     * + oci8
+     *
+     *
+     * <samp>DB_PORTABILITY_ERRORS</samp>
+     * makes certain error messages in certain drivers compatible
+     * with those from other DBMS's
+     *
+     * + mysql, mysqli:  change unique/primary key constraints
+     *   DB_ERROR_ALREADY_EXISTS -> DB_ERROR_CONSTRAINT
+     *
+     * + odbc(access):  MS's ODBC driver reports 'no such field' as code
+     *   07001, which means 'too few parameters.'  When this option is on
+     *   that code gets mapped to DB_ERROR_NOSUCHFIELD.
+     *   DB_ERROR_MISMATCH -> DB_ERROR_NOSUCHFIELD
+     *
+     * <samp>DB_PORTABILITY_NULL_TO_EMPTY</samp>
+     * convert null values to empty strings in data output by get*() and
+     * fetch*().  Needed because Oracle considers empty strings to be null,
+     * while most other DBMS's know the difference between empty and null.
+     *
+     *
+     * <samp>DB_PORTABILITY_ALL</samp>
+     * turn on all portability features
+     *
+     * -----------------------------------------
+     *
+     * Example 1. Simple setOption() example
+     * <code>
+     * $db->setOption('autofree', true);
+     * </code>
+     *
+     * Example 2. Portability for lowercasing and trimming
+     * <code>
+     * $db->setOption('portability',
+     *                 DB_PORTABILITY_LOWERCASE | DB_PORTABILITY_RTRIM);
+     * </code>
+     *
+     * Example 3. All portability options except trimming
+     * <code>
+     * $db->setOption('portability',
+     *                 DB_PORTABILITY_ALL ^ DB_PORTABILITY_RTRIM);
+     * </code>
+     *
+     * @param string $option option name
+     * @param mixed  $value value for the option
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::$options
+     */
+    function setOption($option, $value)
+    {
+        if (isset($this->options[$option])) {
+            $this->options[$option] = $value;
+
+            /*
+             * Backwards compatibility check for the deprecated 'optimize'
+             * option.  Done here in case settings change after connecting.
+             */
+            if ($option == 'optimize') {
+                if ($value == 'portability') {
+                    switch ($this->phptype) {
+                        case 'oci8':
+                            $this->options['portability'] =
+                                    DB_PORTABILITY_LOWERCASE |
+                                    DB_PORTABILITY_NUMROWS;
+                            break;
+                        case 'fbsql':
+                        case 'mysql':
+                        case 'mysqli':
+                        case 'sqlite':
+                            $this->options['portability'] =
+                                    DB_PORTABILITY_DELETE_COUNT;
+                            break;
+                    }
+                } else {
+                    $this->options['portability'] = DB_PORTABILITY_NONE;
+                }
+            }
+
+            return DB_OK;
+        }
+        return $this->raiseError("unknown option $option");
+    }
+
+    // }}}
+    // {{{ getOption()
+
+    /**
+     * Returns the value of an option
+     *
+     * @param string $option  the option name you're curious about
+     *
+     * @return mixed  the option's value
+     */
+    function getOption($option)
+    {
+        if (isset($this->options[$option])) {
+            return $this->options[$option];
+        }
+        return $this->raiseError("unknown option $option");
+    }
+
+    // }}}
+    // {{{ prepare()
+
+    /**
+     * Prepares a query for multiple execution with execute()
+     *
+     * Creates a query that can be run multiple times.  Each time it is run,
+     * the placeholders, if any, will be replaced by the contents of
+     * execute()'s $data argument.
+     *
+     * Three types of placeholders can be used:
+     *   + <kbd>?</kbd>  scalar value (i.e. strings, integers).  The system
+     *                   will automatically quote and escape the data.
+     *   + <kbd>!</kbd>  value is inserted 'as is'
+     *   + <kbd>&</kbd>  requires a file name.  The file's contents get
+     *                   inserted into the query (i.e. saving binary
+     *                   data in a db)
+     *
+     * Example 1.
+     * <code>
+     * $sth = $db->prepare('INSERT INTO tbl (a, b, c) VALUES (?, !, &)');
+     * $data = array(
+     *     "John's text",
+     *     "'it''s good'",
+     *     'filename.txt'
+     * );
+     * $res = $db->execute($sth, $data);
+     * </code>
+     *
+     * Use backslashes to escape placeholder characters if you don't want
+     * them to be interpreted as placeholders:
+     * <pre>
+     *    "UPDATE foo SET col=? WHERE col='over \& under'"
+     * </pre>
+     *
+     * With some database backends, this is emulated.
+     *
+     * {@internal ibase and oci8 have their own prepare() methods.}}
+     *
+     * @param string $query  the query to be prepared
+     *
+     * @return mixed  DB statement resource on success. A DB_Error object
+     *                 on failure.
+     *
+     * @see DB_common::execute()
+     */
+    function prepare($query)
+    {
+        $tokens   = preg_split('/((?<!\\\)[&?!])/', $query, -1,
+                               PREG_SPLIT_DELIM_CAPTURE);
+        $token     = 0;
+        $types     = array();
+        $newtokens = array();
+
+        foreach ($tokens as $val) {
+            switch ($val) {
+                case '?':
+                    $types[$token++] = DB_PARAM_SCALAR;
+                    break;
+                case '&':
+                    $types[$token++] = DB_PARAM_OPAQUE;
+                    break;
+                case '!':
+                    $types[$token++] = DB_PARAM_MISC;
+                    break;
+                default:
+                    $newtokens[] = preg_replace('/\\\([&?!])/', "\\1", $val);
+            }
+        }
+
+        $this->prepare_tokens[] = &$newtokens;
+        end($this->prepare_tokens);
+
+        $k = key($this->prepare_tokens);
+        $this->prepare_types[$k] = $types;
+        $this->prepared_queries[$k] = implode(' ', $newtokens);
+
+        return $k;
+    }
+
+    // }}}
+    // {{{ autoPrepare()
+
+    /**
+     * Automaticaly generates an insert or update query and pass it to prepare()
+     *
+     * @param string $table         the table name
+     * @param array  $table_fields  the array of field names
+     * @param int    $mode          a type of query to make:
+     *                               DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
+     * @param string $where         for update queries: the WHERE clause to
+     *                               append to the SQL statement.  Don't
+     *                               include the "WHERE" keyword.
+     *
+     * @return resource  the query handle
+     *
+     * @uses DB_common::prepare(), DB_common::buildManipSQL()
+     */
+    function autoPrepare($table, $table_fields, $mode = DB_AUTOQUERY_INSERT,
+                         $where = false)
+    {
+        $query = $this->buildManipSQL($table, $table_fields, $mode, $where);
+        if (DB::isError($query)) {
+            return $query;
+        }
+        return $this->prepare($query);
+    }
+
+    // }}}
+    // {{{ autoExecute()
+
+    /**
+     * Automaticaly generates an insert or update query and call prepare()
+     * and execute() with it
+     *
+     * @param string $table         the table name
+     * @param array  $fields_values the associative array where $key is a
+     *                               field name and $value its value
+     * @param int    $mode          a type of query to make:
+     *                               DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
+     * @param string $where         for update queries: the WHERE clause to
+     *                               append to the SQL statement.  Don't
+     *                               include the "WHERE" keyword.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     *
+     * @uses DB_common::autoPrepare(), DB_common::execute()
+     */
+    function autoExecute($table, $fields_values, $mode = DB_AUTOQUERY_INSERT,
+                         $where = false)
+    {
+        $sth = $this->autoPrepare($table, array_keys($fields_values), $mode,
+                                  $where);
+        if (DB::isError($sth)) {
+            return $sth;
+        }
+        $ret =& $this->execute($sth, array_values($fields_values));
+        $this->freePrepared($sth);
+        return $ret;
+
+    }
+
+    // }}}
+    // {{{ buildManipSQL()
+
+    /**
+     * Produces an SQL query string for autoPrepare()
+     *
+     * Example:
+     * <pre>
+     * buildManipSQL('table_sql', array('field1', 'field2', 'field3'),
+     *               DB_AUTOQUERY_INSERT);
+     * </pre>
+     *
+     * That returns
+     * <samp>
+     * INSERT INTO table_sql (field1,field2,field3) VALUES (?,?,?)
+     * </samp>
+     *
+     * NOTES:
+     *   - This belongs more to a SQL Builder class, but this is a simple
+     *     facility.
+     *   - Be carefull! If you don't give a $where param with an UPDATE
+     *     query, all the records of the table will be updated!
+     *
+     * @param string $table         the table name
+     * @param array  $table_fields  the array of field names
+     * @param int    $mode          a type of query to make:
+     *                               DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
+     * @param string $where         for update queries: the WHERE clause to
+     *                               append to the SQL statement.  Don't
+     *                               include the "WHERE" keyword.
+     *
+     * @return string  the sql query for autoPrepare()
+     */
+    function buildManipSQL($table, $table_fields, $mode, $where = false)
+    {
+        if (count($table_fields) == 0) {
+            return $this->raiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+        $first = true;
+        switch ($mode) {
+            case DB_AUTOQUERY_INSERT:
+                $values = '';
+                $names = '';
+                foreach ($table_fields as $value) {
+                    if ($first) {
+                        $first = false;
+                    } else {
+                        $names .= ',';
+                        $values .= ',';
+                    }
+                    $names .= $value;
+                    $values .= '?';
+                }
+                return "INSERT INTO $table ($names) VALUES ($values)";
+            case DB_AUTOQUERY_UPDATE:
+                $set = '';
+                foreach ($table_fields as $value) {
+                    if ($first) {
+                        $first = false;
+                    } else {
+                        $set .= ',';
+                    }
+                    $set .= "$value = ?";
+                }
+                $sql = "UPDATE $table SET $set";
+                if ($where) {
+                    $sql .= " WHERE $where";
+                }
+                return $sql;
+            default:
+                return $this->raiseError(DB_ERROR_SYNTAX);
+        }
+    }
+
+    // }}}
+    // {{{ execute()
+
+    /**
+     * Executes a DB statement prepared with prepare()
+     *
+     * Example 1.
+     * <code>
+     * $sth = $db->prepare('INSERT INTO tbl (a, b, c) VALUES (?, !, &)');
+     * $data = array(
+     *     "John's text",
+     *     "'it''s good'",
+     *     'filename.txt'
+     * );
+     * $res =& $db->execute($sth, $data);
+     * </code>
+     *
+     * @param resource $stmt  a DB statement resource returned from prepare()
+     * @param mixed    $data  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     *
+     * {@internal ibase and oci8 have their own execute() methods.}}
+     *
+     * @see DB_common::prepare()
+     */
+    function &execute($stmt, $data = array())
+    {
+        $realquery = $this->executeEmulateQuery($stmt, $data);
+        if (DB::isError($realquery)) {
+            return $realquery;
+        }
+        $result = $this->simpleQuery($realquery);
+
+        if ($result === DB_OK || DB::isError($result)) {
+            return $result;
+        } else {
+            $tmp =& new DB_result($this, $result);
+            return $tmp;
+        }
+    }
+
+    // }}}
+    // {{{ executeEmulateQuery()
+
+    /**
+     * Emulates executing prepared statements if the DBMS not support them
+     *
+     * @param resource $stmt  a DB statement resource returned from execute()
+     * @param mixed    $data  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a string containing the real query run when emulating
+     *                 prepare/execute.  A DB_Error object on failure.
+     *
+     * @access protected
+     * @see DB_common::execute()
+     */
+    function executeEmulateQuery($stmt, $data = array())
+    {
+        $stmt = (int)$stmt;
+        $data = (array)$data;
+        $this->last_parameters = $data;
+
+        if (count($this->prepare_types[$stmt]) != count($data)) {
+            $this->last_query = $this->prepared_queries[$stmt];
+            return $this->raiseError(DB_ERROR_MISMATCH);
+        }
+
+        $realquery = $this->prepare_tokens[$stmt][0];
+
+        $i = 0;
+        foreach ($data as $value) {
+            if ($this->prepare_types[$stmt][$i] == DB_PARAM_SCALAR) {
+                $realquery .= $this->quoteSmart($value);
+            } elseif ($this->prepare_types[$stmt][$i] == DB_PARAM_OPAQUE) {
+                $fp = @fopen($value, 'rb');
+                if (!$fp) {
+                    return $this->raiseError(DB_ERROR_ACCESS_VIOLATION);
+                }
+                $realquery .= $this->quoteSmart(fread($fp, filesize($value)));
+                fclose($fp);
+            } else {
+                $realquery .= $value;
+            }
+
+            $realquery .= $this->prepare_tokens[$stmt][++$i];
+        }
+
+        return $realquery;
+    }
+
+    // }}}
+    // {{{ executeMultiple()
+
+    /**
+     * Performs several execute() calls on the same statement handle
+     *
+     * $data must be an array indexed numerically
+     * from 0, one execute call is done for every "row" in the array.
+     *
+     * If an error occurs during execute(), executeMultiple() does not
+     * execute the unfinished rows, but rather returns that error.
+     *
+     * @param resource $stmt  query handle from prepare()
+     * @param array    $data  numeric array containing the
+     *                         data to insert into the query
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::prepare(), DB_common::execute()
+     */
+    function executeMultiple($stmt, $data)
+    {
+        foreach ($data as $value) {
+            $res =& $this->execute($stmt, $value);
+            if (DB::isError($res)) {
+                return $res;
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freePrepared()
+
+    /**
+     * Frees the internal resources associated with a prepared query
+     *
+     * @param resource $stmt           the prepared statement's PHP resource
+     * @param bool     $free_resource  should the PHP resource be freed too?
+     *                                  Use false if you need to get data
+     *                                  from the result set later.
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_common::prepare()
+     */
+    function freePrepared($stmt, $free_resource = true)
+    {
+        $stmt = (int)$stmt;
+        if (isset($this->prepare_tokens[$stmt])) {
+            unset($this->prepare_tokens[$stmt]);
+            unset($this->prepare_types[$stmt]);
+            unset($this->prepared_queries[$stmt]);
+            return true;
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ modifyQuery()
+
+    /**
+     * Changes a query string for various DBMS specific reasons
+     *
+     * It is defined here to ensure all drivers have this method available.
+     *
+     * @param string $query  the query string to modify
+     *
+     * @return string  the modified query string
+     *
+     * @access protected
+     * @see DB_mysql::modifyQuery(), DB_oci8::modifyQuery(),
+     *      DB_sqlite::modifyQuery()
+     */
+    function modifyQuery($query)
+    {
+        return $query;
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * It is defined here to assure that all implementations
+     * have this method defined.
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        return $query;
+    }
+
+    // }}}
+    // {{{ query()
+
+    /**
+     * Sends a query to the database server
+     *
+     * The query string can be either a normal statement to be sent directly
+     * to the server OR if <var>$params</var> are passed the query can have
+     * placeholders and it will be passed through prepare() and execute().
+     *
+     * @param string $query   the SQL query or the statement to prepare
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_result, DB_common::prepare(), DB_common::execute()
+     */
+    function &query($query, $params = array())
+    {
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+            $ret =& $this->execute($sth, $params);
+            $this->freePrepared($sth, false);
+            return $ret;
+        } else {
+            $this->last_parameters = array();
+            $result = $this->simpleQuery($query);
+            if ($result === DB_OK || DB::isError($result)) {
+                return $result;
+            } else {
+                $tmp =& new DB_result($this, $result);
+                return $tmp;
+            }
+        }
+    }
+
+    // }}}
+    // {{{ limitQuery()
+
+    /**
+     * Generates and executes a LIMIT query
+     *
+     * @param string $query   the query
+     * @param intr   $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  a new DB_result object for successful SELECT queries
+     *                 or DB_OK for successul data manipulation queries.
+     *                 A DB_Error object on failure.
+     */
+    function &limitQuery($query, $from, $count, $params = array())
+    {
+        $query = $this->modifyLimitQuery($query, $from, $count, $params);
+        if (DB::isError($query)){
+            return $query;
+        }
+        $result =& $this->query($query, $params);
+        if (is_a($result, 'DB_result')) {
+            $result->setOption('limit_from', $from);
+            $result->setOption('limit_count', $count);
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ getOne()
+
+    /**
+     * Fetches the first column of the first row from a query result
+     *
+     * Takes care of doing the query and freeing the results when finished.
+     *
+     * @param string $query   the SQL query
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return mixed  the returned value of the query.
+     *                 A DB_Error object on failure.
+     */
+    function &getOne($query, $params = array())
+    {
+        $params = (array)$params;
+        // modifyLimitQuery() would be nice here, but it causes BC issues
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+
+        $err = $res->fetchInto($row, DB_FETCHMODE_ORDERED);
+        $res->free();
+
+        if ($err !== DB_OK) {
+            return $err;
+        }
+
+        return $row[0];
+    }
+
+    // }}}
+    // {{{ getRow()
+
+    /**
+     * Fetches the first row of data returned from a query result
+     *
+     * Takes care of doing the query and freeing the results when finished.
+     *
+     * @param string $query   the SQL query
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     * @param int $fetchmode  the fetch mode to use
+     *
+     * @return array  the first row of results as an array.
+     *                 A DB_Error object on failure.
+     */
+    function &getRow($query, $params = array(),
+                     $fetchmode = DB_FETCHMODE_DEFAULT)
+    {
+        // compat check, the params and fetchmode parameters used to
+        // have the opposite order
+        if (!is_array($params)) {
+            if (is_array($fetchmode)) {
+                if ($params === null) {
+                    $tmp = DB_FETCHMODE_DEFAULT;
+                } else {
+                    $tmp = $params;
+                }
+                $params = $fetchmode;
+                $fetchmode = $tmp;
+            } elseif ($params !== null) {
+                $fetchmode = $params;
+                $params = array();
+            }
+        }
+        // modifyLimitQuery() would be nice here, but it causes BC issues
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+
+        $err = $res->fetchInto($row, $fetchmode);
+
+        $res->free();
+
+        if ($err !== DB_OK) {
+            return $err;
+        }
+
+        return $row;
+    }
+
+    // }}}
+    // {{{ getCol()
+
+    /**
+     * Fetches a single column from a query result and returns it as an
+     * indexed array
+     *
+     * @param string $query   the SQL query
+     * @param mixed  $col     which column to return (integer [column number,
+     *                         starting at 0] or string [column name])
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return array  the results as an array.  A DB_Error object on failure.
+     *
+     * @see DB_common::query()
+     */
+    function &getCol($query, $col = 0, $params = array())
+    {
+        $params = (array)$params;
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+
+        $fetchmode = is_int($col) ? DB_FETCHMODE_ORDERED : DB_FETCHMODE_ASSOC;
+
+        if (!is_array($row = $res->fetchRow($fetchmode))) {
+            $ret = array();
+        } else {
+            if (!array_key_exists($col, $row)) {
+                $ret =& $this->raiseError(DB_ERROR_NOSUCHFIELD);
+            } else {
+                $ret = array($row[$col]);
+                while (is_array($row = $res->fetchRow($fetchmode))) {
+                    $ret[] = $row[$col];
+                }
+            }
+        }
+
+        $res->free();
+
+        if (DB::isError($row)) {
+            $ret = $row;
+        }
+
+        return $ret;
+    }
+
+    // }}}
+    // {{{ getAssoc()
+
+    /**
+     * Fetches an entire query result and returns it as an
+     * associative array using the first column as the key
+     *
+     * If the result set contains more than two columns, the value
+     * will be an array of the values from column 2-n.  If the result
+     * set contains only two columns, the returned value will be a
+     * scalar with the value of the second column (unless forced to an
+     * array with the $force_array parameter).  A DB error code is
+     * returned on errors.  If the result set contains fewer than two
+     * columns, a DB_ERROR_TRUNCATED error is returned.
+     *
+     * For example, if the table "mytable" contains:
+     *
+     * <pre>
+     *  ID      TEXT       DATE
+     * --------------------------------
+     *  1       'one'      944679408
+     *  2       'two'      944679408
+     *  3       'three'    944679408
+     * </pre>
+     *
+     * Then the call getAssoc('SELECT id,text FROM mytable') returns:
+     * <pre>
+     *   array(
+     *     '1' => 'one',
+     *     '2' => 'two',
+     *     '3' => 'three',
+     *   )
+     * </pre>
+     *
+     * ...while the call getAssoc('SELECT id,text,date FROM mytable') returns:
+     * <pre>
+     *   array(
+     *     '1' => array('one', '944679408'),
+     *     '2' => array('two', '944679408'),
+     *     '3' => array('three', '944679408')
+     *   )
+     * </pre>
+     *
+     * If the more than one row occurs with the same value in the
+     * first column, the last row overwrites all previous ones by
+     * default.  Use the $group parameter if you don't want to
+     * overwrite like this.  Example:
+     *
+     * <pre>
+     * getAssoc('SELECT category,id,name FROM mytable', false, null,
+     *          DB_FETCHMODE_ASSOC, true) returns:
+     *
+     *   array(
+     *     '1' => array(array('id' => '4', 'name' => 'number four'),
+     *                  array('id' => '6', 'name' => 'number six')
+     *            ),
+     *     '9' => array(array('id' => '4', 'name' => 'number four'),
+     *                  array('id' => '6', 'name' => 'number six')
+     *            )
+     *   )
+     * </pre>
+     *
+     * Keep in mind that database functions in PHP usually return string
+     * values for results regardless of the database's internal type.
+     *
+     * @param string $query        the SQL query
+     * @param bool   $force_array  used only when the query returns
+     *                              exactly two columns.  If true, the values
+     *                              of the returned array will be one-element
+     *                              arrays instead of scalars.
+     * @param mixed  $params       array, string or numeric data to be used in
+     *                              execution of the statement.  Quantity of
+     *                              items passed must match quantity of
+     *                              placeholders in query:  meaning 1
+     *                              placeholder for non-array parameters or
+     *                              1 placeholder per array element.
+     * @param int   $fetchmode     the fetch mode to use
+     * @param bool  $group         if true, the values of the returned array
+     *                              is wrapped in another array.  If the same
+     *                              key value (in the first column) repeats
+     *                              itself, the values will be appended to
+     *                              this array instead of overwriting the
+     *                              existing values.
+     *
+     * @return array  the associative array containing the query results.
+     *                A DB_Error object on failure.
+     */
+    function &getAssoc($query, $force_array = false, $params = array(),
+                       $fetchmode = DB_FETCHMODE_DEFAULT, $group = false)
+    {
+        $params = (array)$params;
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if (DB::isError($res)) {
+            return $res;
+        }
+        if ($fetchmode == DB_FETCHMODE_DEFAULT) {
+            $fetchmode = $this->fetchmode;
+        }
+        $cols = $res->numCols();
+
+        if ($cols < 2) {
+            $tmp =& $this->raiseError(DB_ERROR_TRUNCATED);
+            return $tmp;
+        }
+
+        $results = array();
+
+        if ($cols > 2 || $force_array) {
+            // return array values
+            // XXX this part can be optimized
+            if ($fetchmode == DB_FETCHMODE_ASSOC) {
+                while (is_array($row = $res->fetchRow(DB_FETCHMODE_ASSOC))) {
+                    reset($row);
+                    $key = current($row);
+                    unset($row[key($row)]);
+                    if ($group) {
+                        $results[$key][] = $row;
+                    } else {
+                        $results[$key] = $row;
+                    }
+                }
+            } elseif ($fetchmode == DB_FETCHMODE_OBJECT) {
+                while ($row = $res->fetchRow(DB_FETCHMODE_OBJECT)) {
+                    $arr = get_object_vars($row);
+                    $key = current($arr);
+                    if ($group) {
+                        $results[$key][] = $row;
+                    } else {
+                        $results[$key] = $row;
+                    }
+                }
+            } else {
+                while (is_array($row = $res->fetchRow(DB_FETCHMODE_ORDERED))) {
+                    // we shift away the first element to get
+                    // indices running from 0 again
+                    $key = array_shift($row);
+                    if ($group) {
+                        $results[$key][] = $row;
+                    } else {
+                        $results[$key] = $row;
+                    }
+                }
+            }
+            if (DB::isError($row)) {
+                $results = $row;
+            }
+        } else {
+            // return scalar values
+            while (is_array($row = $res->fetchRow(DB_FETCHMODE_ORDERED))) {
+                if ($group) {
+                    $results[$row[0]][] = $row[1];
+                } else {
+                    $results[$row[0]] = $row[1];
+                }
+            }
+            if (DB::isError($row)) {
+                $results = $row;
+            }
+        }
+
+        $res->free();
+
+        return $results;
+    }
+
+    // }}}
+    // {{{ getAll()
+
+    /**
+     * Fetches all of the rows from a query result
+     *
+     * @param string $query      the SQL query
+     * @param mixed  $params     array, string or numeric data to be used in
+     *                            execution of the statement.  Quantity of
+     *                            items passed must match quantity of
+     *                            placeholders in query:  meaning 1
+     *                            placeholder for non-array parameters or
+     *                            1 placeholder per array element.
+     * @param int    $fetchmode  the fetch mode to use:
+     *                            + DB_FETCHMODE_ORDERED
+     *                            + DB_FETCHMODE_ASSOC
+     *                            + DB_FETCHMODE_ORDERED | DB_FETCHMODE_FLIPPED
+     *                            + DB_FETCHMODE_ASSOC | DB_FETCHMODE_FLIPPED
+     *
+     * @return array  the nested array.  A DB_Error object on failure.
+     */
+    function &getAll($query, $params = array(),
+                     $fetchmode = DB_FETCHMODE_DEFAULT)
+    {
+        // compat check, the params and fetchmode parameters used to
+        // have the opposite order
+        if (!is_array($params)) {
+            if (is_array($fetchmode)) {
+                if ($params === null) {
+                    $tmp = DB_FETCHMODE_DEFAULT;
+                } else {
+                    $tmp = $params;
+                }
+                $params = $fetchmode;
+                $fetchmode = $tmp;
+            } elseif ($params !== null) {
+                $fetchmode = $params;
+                $params = array();
+            }
+        }
+
+        if (sizeof($params) > 0) {
+            $sth = $this->prepare($query);
+
+            if (DB::isError($sth)) {
+                return $sth;
+            }
+
+            $res =& $this->execute($sth, $params);
+            $this->freePrepared($sth);
+        } else {
+            $res =& $this->query($query);
+        }
+
+        if ($res === DB_OK || DB::isError($res)) {
+            return $res;
+        }
+
+        $results = array();
+        while (DB_OK === $res->fetchInto($row, $fetchmode)) {
+            if ($fetchmode & DB_FETCHMODE_FLIPPED) {
+                foreach ($row as $key => $val) {
+                    $results[$key][] = $val;
+                }
+            } else {
+                $results[] = $row;
+            }
+        }
+
+        $res->free();
+
+        if (DB::isError($row)) {
+            $tmp =& $this->raiseError($row);
+            return $tmp;
+        }
+        return $results;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Determines the number of rows in a query result
+     *
+     * @param resource $result  the query result idenifier produced by PHP
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function numRows($result)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ getSequenceName()
+
+    /**
+     * Generates the name used inside the database for a sequence
+     *
+     * The createSequence() docblock contains notes about storing sequence
+     * names.
+     *
+     * @param string $sqn  the sequence's public name
+     *
+     * @return string  the sequence's name in the backend
+     *
+     * @access protected
+     * @see DB_common::createSequence(), DB_common::dropSequence(),
+     *      DB_common::nextID(), DB_common::setOption()
+     */
+    function getSequenceName($sqn)
+    {
+        return sprintf($this->getOption('seqname_format'),
+                       preg_replace('/[^a-z0-9_.]/i', '_', $sqn));
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::dropSequence(),
+     *      DB_common::getSequenceName()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * The name of a given sequence is determined by passing the string
+     * provided in the <var>$seq_name</var> argument through PHP's sprintf()
+     * function using the value from the <var>seqname_format</var> option as
+     * the sprintf()'s format argument.
+     *
+     * <var>seqname_format</var> is set via setOption().
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_common::nextID()
+     */
+    function createSequence($seq_name)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_common::nextID()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ raiseError()
+
+    /**
+     * Communicates an error and invoke error callbacks, etc
+     *
+     * Basically a wrapper for PEAR::raiseError without the message string.
+     *
+     * @param mixed   integer error code, or a PEAR error object (all
+     *                 other parameters are ignored if this parameter is
+     *                 an object
+     * @param int     error mode, see PEAR_Error docs
+     * @param mixed   if error mode is PEAR_ERROR_TRIGGER, this is the
+     *                 error level (E_USER_NOTICE etc).  If error mode is
+     *                 PEAR_ERROR_CALLBACK, this is the callback function,
+     *                 either as a function name, or as an array of an
+     *                 object and method name.  For other error modes this
+     *                 parameter is ignored.
+     * @param string  extra debug information.  Defaults to the last
+     *                 query and native error code.
+     * @param mixed   native error code, integer or string depending the
+     *                 backend
+     *
+     * @return object  the PEAR_Error object
+     *
+     * @see PEAR_Error
+     */
+    function &raiseError($code = DB_ERROR, $mode = null, $options = null,
+                         $userinfo = null, $nativecode = null)
+    {
+        // The error is yet a DB error object
+        if (is_object($code)) {
+            // because we the static PEAR::raiseError, our global
+            // handler should be used if it is set
+            if ($mode === null && !empty($this->_default_error_mode)) {
+                $mode    = $this->_default_error_mode;
+                $options = $this->_default_error_options;
+            }
+            $tmp = PEAR::raiseError($code, null, $mode, $options,
+                                    null, null, true);
+            return $tmp;
+        }
+
+        if ($userinfo === null) {
+            $userinfo = $this->last_query;
+        }
+
+        if ($nativecode) {
+            $userinfo .= ' [nativecode=' . trim($nativecode) . ']';
+        } else {
+            $userinfo .= ' [DB Error: ' . DB::errorMessage($code) . ']';
+        }
+
+        $tmp = PEAR::raiseError(null, $code, $mode, $options, $userinfo,
+                                'DB_Error', true);
+        return $tmp;
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return mixed  the DBMS' error code.  A DB_Error object on failure.
+     */
+    function errorNative()
+    {
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Maps native error codes to DB's portable ones
+     *
+     * Uses the <var>$errorcode_map</var> property defined in each driver.
+     *
+     * @param string|int $nativecode  the error code returned by the DBMS
+     *
+     * @return int  the portable DB error code.  Return DB_ERROR if the
+     *               current driver doesn't have a mapping for the
+     *               $nativecode submitted.
+     */
+    function errorCode($nativecode)
+    {
+        if (isset($this->errorcode_map[$nativecode])) {
+            return $this->errorcode_map[$nativecode];
+        }
+        // Fall back to DB_ERROR if there was no mapping.
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ errorMessage()
+
+    /**
+     * Maps a DB error code to a textual message
+     *
+     * @param integer $dbcode  the DB error code
+     *
+     * @return string  the error message corresponding to the error code
+     *                  submitted.  FALSE if the error code is unknown.
+     *
+     * @see DB::errorMessage()
+     */
+    function errorMessage($dbcode)
+    {
+        return DB::errorMessage($this->errorcode_map[$dbcode]);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * The format of the resulting array depends on which <var>$mode</var>
+     * you select.  The sample output below is based on this query:
+     * <pre>
+     *    SELECT tblFoo.fldID, tblFoo.fldPhone, tblBar.fldId
+     *    FROM tblFoo
+     *    JOIN tblBar ON tblFoo.fldId = tblBar.fldId
+     * </pre>
+     *
+     * <ul>
+     * <li>
+     *
+     * <kbd>null</kbd> (default)
+     *   <pre>
+     *   [0] => Array (
+     *       [table] => tblFoo
+     *       [name] => fldId
+     *       [type] => int
+     *       [len] => 11
+     *       [flags] => primary_key not_null
+     *   )
+     *   [1] => Array (
+     *       [table] => tblFoo
+     *       [name] => fldPhone
+     *       [type] => string
+     *       [len] => 20
+     *       [flags] =>
+     *   )
+     *   [2] => Array (
+     *       [table] => tblBar
+     *       [name] => fldId
+     *       [type] => int
+     *       [len] => 11
+     *       [flags] => primary_key not_null
+     *   )
+     *   </pre>
+     *
+     * </li><li>
+     *
+     * <kbd>DB_TABLEINFO_ORDER</kbd>
+     *
+     *   <p>In addition to the information found in the default output,
+     *   a notation of the number of columns is provided by the
+     *   <samp>num_fields</samp> element while the <samp>order</samp>
+     *   element provides an array with the column names as the keys and
+     *   their location index number (corresponding to the keys in the
+     *   the default output) as the values.</p>
+     *
+     *   <p>If a result set has identical field names, the last one is
+     *   used.</p>
+     *
+     *   <pre>
+     *   [num_fields] => 3
+     *   [order] => Array (
+     *       [fldId] => 2
+     *       [fldTrans] => 1
+     *   )
+     *   </pre>
+     *
+     * </li><li>
+     *
+     * <kbd>DB_TABLEINFO_ORDERTABLE</kbd>
+     *
+     *   <p>Similar to <kbd>DB_TABLEINFO_ORDER</kbd> but adds more
+     *   dimensions to the array in which the table names are keys and
+     *   the field names are sub-keys.  This is helpful for queries that
+     *   join tables which have identical field names.</p>
+     *
+     *   <pre>
+     *   [num_fields] => 3
+     *   [ordertable] => Array (
+     *       [tblFoo] => Array (
+     *           [fldId] => 0
+     *           [fldPhone] => 1
+     *       )
+     *       [tblBar] => Array (
+     *           [fldId] => 2
+     *       )
+     *   )
+     *   </pre>
+     *
+     * </li>
+     * </ul>
+     *
+     * The <samp>flags</samp> element contains a space separated list
+     * of extra information about the field.  This data is inconsistent
+     * between DBMS's due to the way each DBMS works.
+     *   + <samp>primary_key</samp>
+     *   + <samp>unique_key</samp>
+     *   + <samp>multiple_key</samp>
+     *   + <samp>not_null</samp>
+     *
+     * Most DBMS's only provide the <samp>table</samp> and <samp>flags</samp>
+     * elements if <var>$result</var> is a table name.  The following DBMS's
+     * provide full information from queries:
+     *   + fbsql
+     *   + mysql
+     *
+     * If the 'portability' option has <samp>DB_PORTABILITY_LOWERCASE</samp>
+     * turned on, the names of tables and fields will be lowercased.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                string containing the name of a table.
+     *                                While this also accepts a query result
+     *                                resource identifier, this behavior is
+     *                                deprecated.
+     * @param int  $mode   either unused or one of the tableInfo modes:
+     *                     <kbd>DB_TABLEINFO_ORDERTABLE</kbd>,
+     *                     <kbd>DB_TABLEINFO_ORDER</kbd> or
+     *                     <kbd>DB_TABLEINFO_FULL</kbd> (which does both).
+     *                     These are bitwise, so the first two can be
+     *                     combined using <kbd>|</kbd>.
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::setOption()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        /*
+         * If the DB_<driver> class has a tableInfo() method, that one
+         * overrides this one.  But, if the driver doesn't have one,
+         * this method runs and tells users about that fact.
+         */
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ getTables()
+
+    /**
+     * Lists the tables in the current database
+     *
+     * @return array  the list of tables.  A DB_Error object on failure.
+     *
+     * @deprecated Method deprecated some time before Release 1.2
+     */
+    function getTables()
+    {
+        return $this->getListOf('tables');
+    }
+
+    // }}}
+    // {{{ getListOf()
+
+    /**
+     * Lists internal database information
+     *
+     * @param string $type  type of information being sought.
+     *                       Common items being sought are:
+     *                       tables, databases, users, views, functions
+     *                       Each DBMS's has its own capabilities.
+     *
+     * @return array  an array listing the items sought.
+     *                 A DB DB_Error object on failure.
+     */
+    function getListOf($type)
+    {
+        $sql = $this->getSpecialQuery($type);
+        if ($sql === null) {
+            $this->last_query = '';
+            return $this->raiseError(DB_ERROR_UNSUPPORTED);
+        } elseif (is_int($sql) || DB::isError($sql)) {
+            // Previous error
+            return $this->raiseError($sql);
+        } elseif (is_array($sql)) {
+            // Already the result
+            return $sql;
+        }
+        // Launch this query
+        return $this->getCol($sql);
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        return $this->raiseError(DB_ERROR_UNSUPPORTED);
+    }
+
+    // }}}
+    // {{{ _rtrimArrayValues()
+
+    /**
+     * Right-trims all strings in an array
+     *
+     * @param array $array  the array to be trimmed (passed by reference)
+     *
+     * @return void
+     *
+     * @access protected
+     */
+    function _rtrimArrayValues(&$array)
+    {
+        foreach ($array as $key => $value) {
+            if (is_string($value)) {
+                $array[$key] = rtrim($value);
+            }
+        }
+    }
+
+    // }}}
+    // {{{ _convertNullArrayValuesToEmpty()
+
+    /**
+     * Converts all null values in an array to empty strings
+     *
+     * @param array  $array  the array to be de-nullified (passed by reference)
+     *
+     * @return void
+     *
+     * @access protected
+     */
+    function _convertNullArrayValuesToEmpty(&$array)
+    {
+        foreach ($array as $key => $value) {
+            if (is_null($value)) {
+                $array[$key] = '';
+            }
+        }
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/dbase.php b/program/lib/DB/dbase.php
new file mode 100644
index 000000000..6026f15ce
--- /dev/null
+++ b/program/lib/DB/dbase.php
@@ -0,0 +1,510 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's dbase extension
+ * for interacting with dBase databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Tomas V.V. Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's dbase extension
+ * for interacting with dBase databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Tomas V.V. Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_dbase extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'dbase';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'dbase';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => false,
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => false,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => false,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * A means of emulating result resources
+     * @var array
+     */
+    var $res_row = array();
+
+    /**
+     * The quantity of results so far
+     *
+     * For emulating result resources.
+     *
+     * @var integer
+     */
+    var $result = 0;
+
+    /**
+     * Maps dbase data type id's to human readable strings
+     *
+     * The human readable values are based on the output of PHP's
+     * dbase_get_header_info() function.
+     *
+     * @var array
+     * @since Property available since Release 1.7.0
+     */
+    var $types = array(
+        'C' => 'character',
+        'D' => 'date',
+        'L' => 'boolean',
+        'M' => 'memo',
+        'N' => 'number',
+    );
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_dbase()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database and create it if it doesn't exist
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's dbase driver supports the following extra DSN options:
+     *   + mode    An integer specifying the read/write mode to use
+     *              (0 = read only, 1 = write only, 2 = read/write).
+     *              Available since PEAR DB 1.7.0.
+     *   + fields  An array of arrays that PHP's dbase_create() function needs
+     *              to create a new database.  This information is used if the
+     *              dBase file specified in the "database" segment of the DSN
+     *              does not exist.  For more info, see the PHP manual's
+     *              {@link http://php.net/dbase_create dbase_create()} page.
+     *              Available since PEAR DB 1.7.0.
+     *
+     * Example of how to connect and establish a new dBase file if necessary:
+     * <code>
+     * require_once 'DB.php';
+     *
+     * $dsn = array(
+     *     'phptype'  => 'dbase',
+     *     'database' => '/path/and/name/of/dbase/file',
+     *     'mode'     => 2,
+     *     'fields'   => array(
+     *         array('a', 'N', 5, 0),
+     *         array('b', 'C', 40),
+     *         array('c', 'C', 255),
+     *         array('d', 'C', 20),
+     *     ),
+     * );
+     * $options = array(
+     *     'debug'       => 2,
+     *     'portability' => DB_PORTABILITY_ALL,
+     * );
+     *
+     * $db =& DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('dbase')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        /*
+         * Turn track_errors on for entire script since $php_errormsg
+         * is the only way to find errors from the dbase extension.
+         */
+        ini_set('track_errors', 1);
+        $php_errormsg = '';
+
+        if (!file_exists($dsn['database'])) {
+            $this->dsn['mode'] = 2;
+            if (empty($dsn['fields']) || !is_array($dsn['fields'])) {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         'the dbase file does not exist and '
+                                         . 'it could not be created because '
+                                         . 'the "fields" element of the DSN '
+                                         . 'is not properly set');
+            }
+            $this->connection = @dbase_create($dsn['database'],
+                                              $dsn['fields']);
+            if (!$this->connection) {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         'the dbase file does not exist and '
+                                         . 'the attempt to create it failed: '
+                                         . $php_errormsg);
+            }
+        } else {
+            if (!isset($this->dsn['mode'])) {
+                $this->dsn['mode'] = 0;
+            }
+            $this->connection = @dbase_open($dsn['database'],
+                                            $this->dsn['mode']);
+            if (!$this->connection) {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @dbase_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ &query()
+
+    function &query($query = null)
+    {
+        // emulate result resources
+        $this->res_row[(int)$this->result] = 0;
+        $tmp =& new DB_result($this, $this->result++);
+        return $tmp;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum === null) {
+            $rownum = $this->res_row[(int)$result]++;
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @dbase_get_record_with_names($this->connection, $rownum);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @dbase_get_record($this->connection, $rownum);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($foo)
+    {
+        return @dbase_numfields($this->connection);
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($foo)
+    {
+        return @dbase_numrecords($this->connection);
+    }
+
+    // }}}
+    // {{{ quoteSmart()
+
+    /**
+     * Formats input so it can be safely used in a query
+     *
+     * @param mixed $in  the data to be formatted
+     *
+     * @return mixed  the formatted data.  The format depends on the input's
+     *                 PHP type:
+     *                 + null = the string <samp>NULL</samp>
+     *                 + boolean = <samp>T</samp> if true or
+     *                   <samp>F</samp> if false.  Use the <kbd>Logical</kbd>
+     *                   data type.
+     *                 + integer or double = the unquoted number
+     *                 + other (including strings and numeric strings) =
+     *                   the data with single quotes escaped by preceeding
+     *                   single quotes then the whole string is encapsulated
+     *                   between single quotes
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteSmart($in)
+    {
+        if (is_int($in) || is_double($in)) {
+            return $in;
+        } elseif (is_bool($in)) {
+            return $in ? 'T' : 'F';
+        } elseif (is_null($in)) {
+            return 'NULL';
+        } else {
+            return "'" . $this->escapeSimple($in) . "'";
+        }
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about the current database
+     *
+     * @param mixed $result  THIS IS UNUSED IN DBASE.  The current database
+     *                       is examined regardless of what is provided here.
+     * @param int   $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     * @since Method available since Release 1.7.0
+     */
+    function tableInfo($result = null, $mode = null)
+    {
+        if (function_exists('dbase_get_header_info')) {
+            $id = @dbase_get_header_info($this->connection);
+            if (!$id && $php_errormsg) {
+                return $this->raiseError(DB_ERROR,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+        } else {
+            /*
+             * This segment for PHP 4 is loosely based on code by
+             * Hadi Rusiah <deegos@yahoo.com> in the comments on
+             * the dBase reference page in the PHP manual.
+             */
+            $db = @fopen($this->dsn['database'], 'r');
+            if (!$db) {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+
+            $id = array();
+            $i  = 0;
+
+            $line = fread($db, 32);
+            while (!feof($db)) {
+                $line = fread($db, 32);
+                if (substr($line, 0, 1) == chr(13)) {
+                    break;
+                } else {
+                    $pos = strpos(substr($line, 0, 10), chr(0));
+                    $pos = ($pos == 0 ? 10 : $pos);
+                    $id[$i] = array(
+                        'name'   => substr($line, 0, $pos),
+                        'type'   => $this->types[substr($line, 11, 1)],
+                        'length' => ord(substr($line, 16, 1)),
+                        'precision' => ord(substr($line, 17, 1)),
+                    );
+                }
+                $i++;
+            }
+
+            fclose($db);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $res   = array();
+        $count = count($id);
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $this->dsn['database'],
+                'name'  => $case_func($id[$i]['name']),
+                'type'  => $id[$i]['type'],
+                'len'   => $id[$i]['length'],
+                'flags' => ''
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        return $res;
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/fbsql.php b/program/lib/DB/fbsql.php
new file mode 100644
index 000000000..b25868dc1
--- /dev/null
+++ b/program/lib/DB/fbsql.php
@@ -0,0 +1,770 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's fbsql extension
+ * for interacting with FrontBase databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Frank M. Kromann <frank@frontbase.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's fbsql extension
+ * for interacting with FrontBase databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Frank M. Kromann <frank@frontbase.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ * @since      Class functional since Release 1.7.0
+ */
+class DB_fbsql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'fbsql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'fbsql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+         22 => DB_ERROR_SYNTAX,
+         85 => DB_ERROR_ALREADY_EXISTS,
+        108 => DB_ERROR_SYNTAX,
+        116 => DB_ERROR_NOSUCHTABLE,
+        124 => DB_ERROR_VALUE_COUNT_ON_ROW,
+        215 => DB_ERROR_NOSUCHFIELD,
+        217 => DB_ERROR_INVALID_NUMBER,
+        226 => DB_ERROR_NOSUCHFIELD,
+        231 => DB_ERROR_INVALID,
+        239 => DB_ERROR_TRUNCATED,
+        251 => DB_ERROR_SYNTAX,
+        266 => DB_ERROR_NOT_FOUND,
+        357 => DB_ERROR_CONSTRAINT_NOT_NULL,
+        358 => DB_ERROR_CONSTRAINT,
+        360 => DB_ERROR_CONSTRAINT,
+        361 => DB_ERROR_CONSTRAINT,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_fbsql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('fbsql')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $params = array(
+            $dsn['hostspec'] ? $dsn['hostspec'] : 'localhost',
+            $dsn['username'] ? $dsn['username'] : null,
+            $dsn['password'] ? $dsn['password'] : null,
+        );
+
+        $connect_function = $persistent ? 'fbsql_pconnect' : 'fbsql_connect';
+
+        $ini = ini_get('track_errors');
+        $php_errormsg = '';
+        if ($ini) {
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+        } else {
+            ini_set('track_errors', 1);
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+            ini_set('track_errors', $ini);
+        }
+
+        if (!$this->connection) {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     $php_errormsg);
+        }
+
+        if ($dsn['database']) {
+            if (!@fbsql_select_db($dsn['database'], $this->connection)) {
+                return $this->fbsqlRaiseError();
+            }
+        }
+
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @fbsql_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        $result = @fbsql_query("$query;", $this->connection);
+        if (!$result) {
+            return $this->fbsqlRaiseError();
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        if (DB::isManip($query)) {
+            return DB_OK;
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal fbsql result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return @fbsql_next_result($result);
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@fbsql_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @fbsql_fetch_array($result, FBSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @fbsql_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @fbsql_free_result($result);
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff=false)
+    {
+        if ($onoff) {
+            $this->query("SET COMMIT TRUE");
+        } else {
+            $this->query("SET COMMIT FALSE");
+        }
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        @fbsql_commit();
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        @fbsql_rollback();
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @fbsql_num_fields($result);
+        if (!$cols) {
+            return $this->fbsqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @fbsql_num_rows($result);
+        if ($rows === null) {
+            return $this->fbsqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (DB::isManip($this->last_query)) {
+            $result = @fbsql_affected_rows($this->connection);
+        } else {
+            $result = 0;
+        }
+        return $result;
+     }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_fbsql::createSequence(), DB_fbsql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        do {
+            $repeat = 0;
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query('SELECT UNIQUE FROM ' . $seqname);
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
+                $repeat = 1;
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $result;
+                }
+            } else {
+                $repeat = 0;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->fbsqlRaiseError();
+        }
+        $result->fetchInto($tmp, DB_FETCHMODE_ORDERED);
+        return $tmp[0];
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_fbsql::nextID(), DB_fbsql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $res = $this->query('CREATE TABLE ' . $seqname
+                            . ' (id INTEGER NOT NULL,'
+                            . ' PRIMARY KEY(id))');
+        if ($res) {
+            $res = $this->query('SET UNIQUE = 0 FOR ' . $seqname);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_fbsql::nextID(), DB_fbsql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name)
+                            . ' RESTRICT');
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        if (DB::isManip($query)) {
+            return preg_replace('/^([\s(])*SELECT/i',
+                                "\\1SELECT TOP($count)", $query);
+        } else {
+            return preg_replace('/([\s(])*SELECT/i',
+                                "\\1SELECT TOP($from, $count)", $query);
+        }
+    }
+
+    // }}}
+    // {{{ quoteSmart()
+
+    /**
+     * Formats input so it can be safely used in a query
+     *
+     * @param mixed $in  the data to be formatted
+     *
+     * @return mixed  the formatted data.  The format depends on the input's
+     *                 PHP type:
+     *                 + null = the string <samp>NULL</samp>
+     *                 + boolean = string <samp>TRUE</samp> or <samp>FALSE</samp>
+     *                 + integer or double = the unquoted number
+     *                 + other (including strings and numeric strings) =
+     *                   the data escaped according to FrontBase's settings
+     *                   then encapsulated between single quotes
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteSmart($in)
+    {
+        if (is_int($in) || is_double($in)) {
+            return $in;
+        } elseif (is_bool($in)) {
+            return $in ? 'TRUE' : 'FALSE';
+        } elseif (is_null($in)) {
+            return 'NULL';
+        } else {
+            return "'" . $this->escapeSimple($in) . "'";
+        }
+    }
+
+    // }}}
+    // {{{ fbsqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_fbsql::errorNative(), DB_common::errorCode()
+     */
+    function fbsqlRaiseError($errno = null)
+    {
+        if ($errno === null) {
+            $errno = $this->errorCode(fbsql_errno($this->connection));
+        }
+        return $this->raiseError($errno, null, null, null,
+                                 @fbsql_error($this->connection));
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code
+     */
+    function errorNative()
+    {
+        return @fbsql_errno($this->connection);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @fbsql_list_fields($this->dsn['database'],
+                                     $result, $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->fbsqlRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @fbsql_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $case_func(@fbsql_field_table($id, $i)),
+                'name'  => $case_func(@fbsql_field_name($id, $i)),
+                'type'  => @fbsql_field_type($id, $i),
+                'len'   => @fbsql_field_len($id, $i),
+                'flags' => @fbsql_field_flags($id, $i),
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @fbsql_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SELECT "table_name" FROM information_schema.tables'
+                       . ' t0, information_schema.schemata t1'
+                       . ' WHERE t0.schema_pk=t1.schema_pk AND'
+                       . ' "table_type" = \'BASE TABLE\''
+                       . ' AND "schema_name" = current_schema';
+            case 'views':
+                return 'SELECT "table_name" FROM information_schema.tables'
+                       . ' t0, information_schema.schemata t1'
+                       . ' WHERE t0.schema_pk=t1.schema_pk AND'
+                       . ' "table_type" = \'VIEW\''
+                       . ' AND "schema_name" = current_schema';
+            case 'users':
+                return 'SELECT "user_name" from information_schema.users'; 
+            case 'functions':
+                return 'SELECT "routine_name" FROM'
+                       . ' information_schema.psm_routines'
+                       . ' t0, information_schema.schemata t1'
+                       . ' WHERE t0.schema_pk=t1.schema_pk'
+                       . ' AND "routine_kind"=\'FUNCTION\''
+                       . ' AND "schema_name" = current_schema';
+            case 'procedures':
+                return 'SELECT "routine_name" FROM'
+                       . ' information_schema.psm_routines'
+                       . ' t0, information_schema.schemata t1'
+                       . ' WHERE t0.schema_pk=t1.schema_pk'
+                       . ' AND "routine_kind"=\'PROCEDURE\''
+                       . ' AND "schema_name" = current_schema';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/ibase.php b/program/lib/DB/ibase.php
new file mode 100644
index 000000000..b5e2386a0
--- /dev/null
+++ b/program/lib/DB/ibase.php
@@ -0,0 +1,1071 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's interbase extension
+ * for interacting with Interbase and Firebird databases
+ *
+ * While this class works with PHP 4, PHP's InterBase extension is
+ * unstable in PHP 4.  Use PHP 5.
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's interbase extension
+ * for interacting with Interbase and Firebird databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * While this class works with PHP 4, PHP's InterBase extension is
+ * unstable in PHP 4.  Use PHP 5.
+ *
+ * NOTICE:  limitQuery() only works for Firebird.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ * @since      Class became stable in Release 1.7.0
+ */
+class DB_ibase extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'ibase';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'ibase';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * NOTE: only firebird supports limit.
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => false,
+        'new_link'      => false,
+        'numrows'       => 'emulate',
+        'pconnect'      => true,
+        'prepare'       => true,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+        -104 => DB_ERROR_SYNTAX,
+        -150 => DB_ERROR_ACCESS_VIOLATION,
+        -151 => DB_ERROR_ACCESS_VIOLATION,
+        -155 => DB_ERROR_NOSUCHTABLE,
+        -157 => DB_ERROR_NOSUCHFIELD,
+        -158 => DB_ERROR_VALUE_COUNT_ON_ROW,
+        -170 => DB_ERROR_MISMATCH,
+        -171 => DB_ERROR_MISMATCH,
+        -172 => DB_ERROR_INVALID,
+        // -204 =>  // Covers too many errors, need to use regex on msg
+        -205 => DB_ERROR_NOSUCHFIELD,
+        -206 => DB_ERROR_NOSUCHFIELD,
+        -208 => DB_ERROR_INVALID,
+        -219 => DB_ERROR_NOSUCHTABLE,
+        -297 => DB_ERROR_CONSTRAINT,
+        -303 => DB_ERROR_INVALID,
+        -413 => DB_ERROR_INVALID_NUMBER,
+        -530 => DB_ERROR_CONSTRAINT,
+        -551 => DB_ERROR_ACCESS_VIOLATION,
+        -552 => DB_ERROR_ACCESS_VIOLATION,
+        // -607 =>  // Covers too many errors, need to use regex on msg
+        -625 => DB_ERROR_CONSTRAINT_NOT_NULL,
+        -803 => DB_ERROR_CONSTRAINT,
+        -804 => DB_ERROR_VALUE_COUNT_ON_ROW,
+        -904 => DB_ERROR_CONNECT_FAILED,
+        -922 => DB_ERROR_NOSUCHDB,
+        -923 => DB_ERROR_CONNECT_FAILED,
+        -924 => DB_ERROR_CONNECT_FAILED
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * The number of rows affected by a data manipulation query
+     * @var integer
+     * @access private
+     */
+    var $affected = 0;
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The prepared statement handle from the most recently executed statement
+     *
+     * {@internal  Mainly here because the InterBase/Firebird API is only
+     * able to retrieve data from result sets if the statemnt handle is
+     * still in scope.}}
+     *
+     * @var resource
+     */
+    var $last_stmt;
+
+    /**
+     * Is the given prepared statement a data manipulation query?
+     * @var array
+     * @access private
+     */
+    var $manip_query = array();
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_ibase()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's ibase driver supports the following extra DSN options:
+     *   + buffers    The number of database buffers to allocate for the
+     *                 server-side cache.
+     *   + charset    The default character set for a database.
+     *   + dialect    The default SQL dialect for any statement
+     *                 executed within a connection.  Defaults to the
+     *                 highest one supported by client libraries.
+     *                 Functional only with InterBase 6 and up.
+     *   + role       Functional only with InterBase 5 and up.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('interbase')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+        if ($this->dbsyntax == 'firebird') {
+            $this->features['limit'] = 'alter';
+        }
+
+        $params = array(
+            $dsn['hostspec']
+                    ? ($dsn['hostspec'] . ':' . $dsn['database'])
+                    : $dsn['database'],
+            $dsn['username'] ? $dsn['username'] : null,
+            $dsn['password'] ? $dsn['password'] : null,
+            isset($dsn['charset']) ? $dsn['charset'] : null,
+            isset($dsn['buffers']) ? $dsn['buffers'] : null,
+            isset($dsn['dialect']) ? $dsn['dialect'] : null,
+            isset($dsn['role'])    ? $dsn['role'] : null,
+        );
+
+        $connect_function = $persistent ? 'ibase_pconnect' : 'ibase_connect';
+
+        $this->connection = @call_user_func_array($connect_function, $params);
+        if (!$this->connection) {
+            return $this->ibaseRaiseError(DB_ERROR_CONNECT_FAILED);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @ibase_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        $result = @ibase_query($this->connection, $query);
+
+        if (!$result) {
+            return $this->ibaseRaiseError();
+        }
+        if ($this->autocommit && $ismanip) {
+            @ibase_commit($this->connection);
+        }
+        if ($ismanip) {
+            $this->affected = $result;
+            return DB_OK;
+        } else {
+            $this->affected = 0;
+            return $result;
+        }
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * Only works with Firebird.
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        if ($this->dsn['dbsyntax'] == 'firebird') {
+            $query = preg_replace('/^([\s(])*SELECT/i',
+                                  "SELECT FIRST $count SKIP $from", $query);
+        }
+        return $query;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal ibase result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            return $this->ibaseRaiseError(DB_ERROR_NOT_CAPABLE);
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            if (function_exists('ibase_fetch_assoc')) {
+                $arr = @ibase_fetch_assoc($result);
+            } else {
+                $arr = get_object_vars(ibase_fetch_object($result));
+            }
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @ibase_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @ibase_free_result($result);
+    }
+
+    // }}}
+    // {{{ freeQuery()
+
+    function freeQuery($query)
+    {
+        @ibase_free_query($query);
+        return true;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (is_integer($this->affected)) {
+            return $this->affected;
+        }
+        return $this->ibaseRaiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @ibase_num_fields($result);
+        if (!$cols) {
+            return $this->ibaseRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ prepare()
+
+    /**
+     * Prepares a query for multiple execution with execute().
+     *
+     * prepare() requires a generic query as string like <code>
+     *    INSERT INTO numbers VALUES (?, ?, ?)
+     * </code>.  The <kbd>?</kbd> characters are placeholders.
+     *
+     * Three types of placeholders can be used:
+     *   + <kbd>?</kbd>  a quoted scalar value, i.e. strings, integers
+     *   + <kbd>!</kbd>  value is inserted 'as is'
+     *   + <kbd>&</kbd>  requires a file name.  The file's contents get
+     *                     inserted into the query (i.e. saving binary
+     *                     data in a db)
+     *
+     * Use backslashes to escape placeholder characters if you don't want
+     * them to be interpreted as placeholders.  Example: <code>
+     *    "UPDATE foo SET col=? WHERE col='over \& under'"
+     * </code>
+     *
+     * @param string $query query to be prepared
+     * @return mixed DB statement resource on success. DB_Error on failure.
+     */
+    function prepare($query)
+    {
+        $tokens   = preg_split('/((?<!\\\)[&?!])/', $query, -1,
+                               PREG_SPLIT_DELIM_CAPTURE);
+        $token    = 0;
+        $types    = array();
+        $newquery = '';
+
+        foreach ($tokens as $key => $val) {
+            switch ($val) {
+                case '?':
+                    $types[$token++] = DB_PARAM_SCALAR;
+                    break;
+                case '&':
+                    $types[$token++] = DB_PARAM_OPAQUE;
+                    break;
+                case '!':
+                    $types[$token++] = DB_PARAM_MISC;
+                    break;
+                default:
+                    $tokens[$key] = preg_replace('/\\\([&?!])/', "\\1", $val);
+                    $newquery .= $tokens[$key] . '?';
+            }
+        }
+
+        $newquery = substr($newquery, 0, -1);
+        $this->last_query = $query;
+        $newquery = $this->modifyQuery($newquery);
+        $stmt = @ibase_prepare($this->connection, $newquery);
+        $this->prepare_types[(int)$stmt] = $types;
+        $this->manip_query[(int)$stmt]   = DB::isManip($query);
+        return $stmt;
+    }
+
+    // }}}
+    // {{{ execute()
+
+    /**
+     * Executes a DB statement prepared with prepare().
+     *
+     * @param resource  $stmt  a DB statement resource returned from prepare()
+     * @param mixed  $data  array, string or numeric data to be used in
+     *                      execution of the statement.  Quantity of items
+     *                      passed must match quantity of placeholders in
+     *                      query:  meaning 1 for non-array items or the
+     *                      quantity of elements in the array.
+     * @return object  a new DB_Result or a DB_Error when fail
+     * @see DB_ibase::prepare()
+     * @access public
+     */
+    function &execute($stmt, $data = array())
+    {
+        $data = (array)$data;
+        $this->last_parameters = $data;
+
+        $types =& $this->prepare_types[(int)$stmt];
+        if (count($types) != count($data)) {
+            $tmp =& $this->raiseError(DB_ERROR_MISMATCH);
+            return $tmp;
+        }
+
+        $i = 0;
+        foreach ($data as $key => $value) {
+            if ($types[$i] == DB_PARAM_MISC) {
+                /*
+                 * ibase doesn't seem to have the ability to pass a
+                 * parameter along unchanged, so strip off quotes from start
+                 * and end, plus turn two single quotes to one single quote,
+                 * in order to avoid the quotes getting escaped by
+                 * ibase and ending up in the database.
+                 */
+                $data[$key] = preg_replace("/^'(.*)'$/", "\\1", $data[$key]);
+                $data[$key] = str_replace("''", "'", $data[$key]);
+            } elseif ($types[$i] == DB_PARAM_OPAQUE) {
+                $fp = @fopen($data[$key], 'rb');
+                if (!$fp) {
+                    $tmp =& $this->raiseError(DB_ERROR_ACCESS_VIOLATION);
+                    return $tmp;
+                }
+                $data[$key] = fread($fp, filesize($data[$key]));
+                fclose($fp);
+            }
+            $i++;
+        }
+
+        array_unshift($data, $stmt);
+
+        $res = call_user_func_array('ibase_execute', $data);
+        if (!$res) {
+            $tmp =& $this->ibaseRaiseError();
+            return $tmp;
+        }
+        /* XXX need this?
+        if ($this->autocommit && $this->manip_query[(int)$stmt]) {
+            @ibase_commit($this->connection);
+        }*/
+        $this->last_stmt = $stmt;
+        if ($this->manip_query[(int)$stmt]) {
+            $tmp = DB_OK;
+        } else {
+            $tmp =& new DB_result($this, $res);
+        }
+        return $tmp;
+    }
+
+    /**
+     * Frees the internal resources associated with a prepared query
+     *
+     * @param resource $stmt           the prepared statement's PHP resource
+     * @param bool     $free_resource  should the PHP resource be freed too?
+     *                                  Use false if you need to get data
+     *                                  from the result set later.
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_ibase::prepare()
+     */
+    function freePrepared($stmt, $free_resource = true)
+    {
+        if (!is_resource($stmt)) {
+            return false;
+        }
+        if ($free_resource) {
+            @ibase_free_query($stmt);
+        }
+        unset($this->prepare_tokens[(int)$stmt]);
+        unset($this->prepare_types[(int)$stmt]);
+        unset($this->manip_query[(int)$stmt]);
+        return true;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        $this->autocommit = $onoff ? 1 : 0;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        return @ibase_commit($this->connection);
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        return @ibase_rollback($this->connection);
+    }
+
+    // }}}
+    // {{{ transactionInit()
+
+    function transactionInit($trans_args = 0)
+    {
+        return $trans_args
+                ? @ibase_trans($trans_args, $this->connection)
+                : @ibase_trans();
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_ibase::createSequence(), DB_ibase::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $sqn = strtoupper($this->getSequenceName($seq_name));
+        $repeat = 0;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result =& $this->query("SELECT GEN_ID(${sqn}, 1) "
+                                   . 'FROM RDB$GENERATORS '
+                                   . "WHERE RDB\$GENERATOR_NAME='${sqn}'");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result)) {
+                $repeat = 1;
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $result;
+                }
+            } else {
+                $repeat = 0;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        $result->free();
+        return $arr[0];
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_ibase::nextID(), DB_ibase::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $sqn = strtoupper($this->getSequenceName($seq_name));
+        $this->pushErrorHandling(PEAR_ERROR_RETURN);
+        $result = $this->query("CREATE GENERATOR ${sqn}");
+        $this->popErrorHandling();
+
+        return $result;
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_ibase::nextID(), DB_ibase::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DELETE FROM RDB$GENERATORS '
+                            . "WHERE RDB\$GENERATOR_NAME='"
+                            . strtoupper($this->getSequenceName($seq_name))
+                            . "'");
+    }
+
+    // }}}
+    // {{{ _ibaseFieldFlags()
+
+    /**
+     * Get the column's flags
+     *
+     * Supports "primary_key", "unique_key", "not_null", "default",
+     * "computed" and "blob".
+     *
+     * @param string $field_name  the name of the field
+     * @param string $table_name  the name of the table
+     *
+     * @return string  the flags
+     *
+     * @access private
+     */
+    function _ibaseFieldFlags($field_name, $table_name)
+    {
+        $sql = 'SELECT R.RDB$CONSTRAINT_TYPE CTYPE'
+               .' FROM RDB$INDEX_SEGMENTS I'
+               .'  JOIN RDB$RELATION_CONSTRAINTS R ON I.RDB$INDEX_NAME=R.RDB$INDEX_NAME'
+               .' WHERE I.RDB$FIELD_NAME=\'' . $field_name . '\''
+               .'  AND UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\'';
+
+        $result = @ibase_query($this->connection, $sql);
+        if (!$result) {
+            return $this->ibaseRaiseError();
+        }
+
+        $flags = '';
+        if ($obj = @ibase_fetch_object($result)) {
+            @ibase_free_result($result);
+            if (isset($obj->CTYPE)  && trim($obj->CTYPE) == 'PRIMARY KEY') {
+                $flags .= 'primary_key ';
+            }
+            if (isset($obj->CTYPE)  && trim($obj->CTYPE) == 'UNIQUE') {
+                $flags .= 'unique_key ';
+            }
+        }
+
+        $sql = 'SELECT R.RDB$NULL_FLAG AS NFLAG,'
+               .'  R.RDB$DEFAULT_SOURCE AS DSOURCE,'
+               .'  F.RDB$FIELD_TYPE AS FTYPE,'
+               .'  F.RDB$COMPUTED_SOURCE AS CSOURCE'
+               .' FROM RDB$RELATION_FIELDS R '
+               .'  JOIN RDB$FIELDS F ON R.RDB$FIELD_SOURCE=F.RDB$FIELD_NAME'
+               .' WHERE UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\''
+               .'  AND R.RDB$FIELD_NAME=\'' . $field_name . '\'';
+
+        $result = @ibase_query($this->connection, $sql);
+        if (!$result) {
+            return $this->ibaseRaiseError();
+        }
+        if ($obj = @ibase_fetch_object($result)) {
+            @ibase_free_result($result);
+            if (isset($obj->NFLAG)) {
+                $flags .= 'not_null ';
+            }
+            if (isset($obj->DSOURCE)) {
+                $flags .= 'default ';
+            }
+            if (isset($obj->CSOURCE)) {
+                $flags .= 'computed ';
+            }
+            if (isset($obj->FTYPE)  && $obj->FTYPE == 261) {
+                $flags .= 'blob ';
+            }
+        }
+
+        return trim($flags);
+    }
+
+    // }}}
+    // {{{ ibaseRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_ibase::errorNative(), DB_ibase::errorCode()
+     */
+    function &ibaseRaiseError($errno = null)
+    {
+        if ($errno === null) {
+            $errno = $this->errorCode($this->errorNative());
+        }
+        $tmp =& $this->raiseError($errno, null, null, null, @ibase_errmsg());
+        return $tmp;
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code.  NULL if there is no error code.
+     *
+     * @since Method available since Release 1.7.0
+     */
+    function errorNative()
+    {
+        if (function_exists('ibase_errcode')) {
+            return @ibase_errcode();
+        }
+        if (preg_match('/^Dynamic SQL Error SQL error code = ([0-9-]+)/i',
+                       @ibase_errmsg(), $m)) {
+            return (int)$m[1];
+        }
+        return null;
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Maps native error codes to DB's portable ones
+     *
+     * @param int $nativecode  the error code returned by the DBMS
+     *
+     * @return int  the portable DB error code.  Return DB_ERROR if the
+     *               current driver doesn't have a mapping for the
+     *               $nativecode submitted.
+     *
+     * @since Method available since Release 1.7.0
+     */
+    function errorCode($nativecode = null)
+    {
+        if (isset($this->errorcode_map[$nativecode])) {
+            return $this->errorcode_map[$nativecode];
+        }
+
+        static $error_regexps;
+        if (!isset($error_regexps)) {
+            $error_regexps = array(
+                '/generator .* is not defined/'
+                    => DB_ERROR_SYNTAX,  // for compat. w ibase_errcode()
+                '/table.*(not exist|not found|unknown)/i'
+                    => DB_ERROR_NOSUCHTABLE,
+                '/table .* already exists/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/unsuccessful metadata update .* failed attempt to store duplicate value/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/unsuccessful metadata update .* not found/i'
+                    => DB_ERROR_NOT_FOUND,
+                '/validation error for column .* value "\*\*\* null/i'
+                    => DB_ERROR_CONSTRAINT_NOT_NULL,
+                '/violation of [\w ]+ constraint/i'
+                    => DB_ERROR_CONSTRAINT,
+                '/conversion error from string/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/no permission for/i'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/arithmetic exception, numeric overflow, or string truncation/i'
+                    => DB_ERROR_INVALID,
+            );
+        }
+
+        $errormsg = @ibase_errmsg();
+        foreach ($error_regexps as $regexp => $code) {
+            if (preg_match($regexp, $errormsg)) {
+                return $code;
+            }
+        }
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @ibase_query($this->connection,
+                               "SELECT * FROM $result WHERE 1=0");
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->ibaseRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @ibase_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $info = @ibase_field_info($id, $i);
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func($info['name']),
+                'type'  => $info['type'],
+                'len'   => $info['length'],
+                'flags' => ($got_string)
+                            ? $this->_ibaseFieldFlags($info['name'], $result)
+                            : '',
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @ibase_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SELECT DISTINCT R.RDB$RELATION_NAME FROM '
+                       . 'RDB$RELATION_FIELDS R WHERE R.RDB$SYSTEM_FLAG=0';
+            case 'views':
+                return 'SELECT DISTINCT RDB$VIEW_NAME from RDB$VIEW_RELATIONS';
+            case 'users':
+                return 'SELECT DISTINCT RDB$USER FROM RDB$USER_PRIVILEGES';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/ifx.php b/program/lib/DB/ifx.php
new file mode 100644
index 000000000..22575c746
--- /dev/null
+++ b/program/lib/DB/ifx.php
@@ -0,0 +1,681 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's ifx extension
+ * for interacting with Informix databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Tomas V.V.Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's ifx extension
+ * for interacting with Informix databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * More info on Informix errors can be found at:
+ * http://www.informix.com/answers/english/ierrors.htm
+ *
+ * TODO:
+ *   - set needed env Informix vars on connect
+ *   - implement native prepare/execute
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Tomas V.V.Cox <cox@idecnet.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_ifx extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'ifx';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'ifx';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'emulate',
+        'new_link'      => false,
+        'numrows'       => 'emulate',
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+        '-201'    => DB_ERROR_SYNTAX,
+        '-206'    => DB_ERROR_NOSUCHTABLE,
+        '-217'    => DB_ERROR_NOSUCHFIELD,
+        '-236'    => DB_ERROR_VALUE_COUNT_ON_ROW,
+        '-239'    => DB_ERROR_CONSTRAINT,
+        '-253'    => DB_ERROR_SYNTAX,
+        '-292'    => DB_ERROR_CONSTRAINT_NOT_NULL,
+        '-310'    => DB_ERROR_ALREADY_EXISTS,
+        '-316'    => DB_ERROR_ALREADY_EXISTS,
+        '-319'    => DB_ERROR_NOT_FOUND,
+        '-329'    => DB_ERROR_NODBSELECTED,
+        '-346'    => DB_ERROR_CONSTRAINT,
+        '-386'    => DB_ERROR_CONSTRAINT_NOT_NULL,
+        '-391'    => DB_ERROR_CONSTRAINT_NOT_NULL,
+        '-554'    => DB_ERROR_SYNTAX,
+        '-691'    => DB_ERROR_CONSTRAINT,
+        '-692'    => DB_ERROR_CONSTRAINT,
+        '-703'    => DB_ERROR_CONSTRAINT_NOT_NULL,
+        '-1204'   => DB_ERROR_INVALID_DATE,
+        '-1205'   => DB_ERROR_INVALID_DATE,
+        '-1206'   => DB_ERROR_INVALID_DATE,
+        '-1209'   => DB_ERROR_INVALID_DATE,
+        '-1210'   => DB_ERROR_INVALID_DATE,
+        '-1212'   => DB_ERROR_INVALID_DATE,
+        '-1213'   => DB_ERROR_INVALID_NUMBER,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The number of rows affected by a data manipulation query
+     * @var integer
+     * @access private
+     */
+    var $affected = 0;
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_ifx()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('informix') &&
+            !PEAR::loadExtension('Informix'))
+        {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $dbhost = $dsn['hostspec'] ? '@' . $dsn['hostspec'] : '';
+        $dbname = $dsn['database'] ? $dsn['database'] . $dbhost : '';
+        $user = $dsn['username'] ? $dsn['username'] : '';
+        $pw = $dsn['password'] ? $dsn['password'] : '';
+
+        $connect_function = $persistent ? 'ifx_pconnect' : 'ifx_connect';
+
+        $this->connection = @$connect_function($dbname, $user, $pw);
+        if (!is_resource($this->connection)) {
+            return $this->ifxRaiseError(DB_ERROR_CONNECT_FAILED);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @ifx_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $this->affected   = null;
+        if (preg_match('/(SELECT)/i', $query)) {    //TESTME: Use !DB::isManip()?
+            // the scroll is needed for fetching absolute row numbers
+            // in a select query result
+            $result = @ifx_query($query, $this->connection, IFX_SCROLL);
+        } else {
+            if (!$this->autocommit && $ismanip) {
+                if ($this->transaction_opcount == 0) {
+                    $result = @ifx_query('BEGIN WORK', $this->connection);
+                    if (!$result) {
+                        return $this->ifxRaiseError();
+                    }
+                }
+                $this->transaction_opcount++;
+            }
+            $result = @ifx_query($query, $this->connection);
+        }
+        if (!$result) {
+            return $this->ifxRaiseError();
+        }
+        $this->affected = @ifx_affected_rows($result);
+        // Determine which queries should return data, and which
+        // should return an error code only.
+        if (preg_match('/(SELECT)/i', $query)) {
+            return $result;
+        }
+        // XXX Testme: free results inside a transaction
+        // may cause to stop it and commit the work?
+
+        // Result has to be freed even with a insert or update
+        @ifx_free_result($result);
+
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal ifx result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (DB::isManip($this->last_query)) {
+            return $this->affected;
+        } else {
+            return 0;
+        }
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if (($rownum !== null) && ($rownum < 0)) {
+            return null;
+        }
+        if ($rownum === null) {
+            /*
+             * Even though fetch_row() should return the next row  if
+             * $rownum is null, it doesn't in all cases.  Bug 598.
+             */
+            $rownum = 'NEXT';
+        } else {
+            // Index starts at row 1, unlike most DBMS's starting at 0.
+            $rownum++;
+        }
+        if (!$arr = @ifx_fetch_row($result, $rownum)) {
+            return null;
+        }
+        if ($fetchmode !== DB_FETCHMODE_ASSOC) {
+            $i=0;
+            $order = array();
+            foreach ($arr as $val) {
+                $order[$i++] = $val;
+            }
+            $arr = $order;
+        } elseif ($fetchmode == DB_FETCHMODE_ASSOC &&
+                  $this->options['portability'] & DB_PORTABILITY_LOWERCASE)
+        {
+            $arr = array_change_key_case($arr, CASE_LOWER);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        if (!$cols = @ifx_num_fields($result)) {
+            return $this->ifxRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @ifx_free_result($result);
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = true)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            $result = @ifx_query('COMMIT WORK', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->ifxRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            $result = @ifx_query('ROLLBACK WORK', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->ifxRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ ifxRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_ifx::errorNative(), DB_ifx::errorCode()
+     */
+    function ifxRaiseError($errno = null)
+    {
+        if ($errno === null) {
+            $errno = $this->errorCode(ifx_error());
+        }
+        return $this->raiseError($errno, null, null, null,
+                                 $this->errorNative());
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code and message produced by the last query
+     *
+     * @return string  the DBMS' error code and message
+     */
+    function errorNative()
+    {
+        return @ifx_error() . ' ' . @ifx_errormsg();
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Maps native error codes to DB's portable ones.
+     *
+     * Requires that the DB implementation's constructor fills
+     * in the <var>$errorcode_map</var> property.
+     *
+     * @param  string  $nativecode  error code returned by the database
+     * @return int a portable DB error code, or DB_ERROR if this DB
+     * implementation has no mapping for the given error code.
+     */
+    function errorCode($nativecode)
+    {
+        if (ereg('SQLCODE=(.*)]', $nativecode, $match)) {
+            $code = $match[1];
+            if (isset($this->errorcode_map[$code])) {
+                return $this->errorcode_map[$code];
+            }
+        }
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' if <var>$result</var> is a table name.
+     *
+     * If analyzing a query result and the result has duplicate field names,
+     * an error will be raised saying
+     * <samp>can't distinguish duplicate field names</samp>.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     * @since Method available since Release 1.6.0
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @ifx_query("SELECT * FROM $result WHERE 1=0",
+                             $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->ifxRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        $flds = @ifx_fieldproperties($id);
+        $count = @ifx_num_fields($id);
+
+        if (count($flds) != $count) {
+            return $this->raiseError("can't distinguish duplicate field names");
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $i   = 0;
+        $res = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        foreach ($flds as $key => $value) {
+            $props = explode(';', $value);
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func($key),
+                'type'  => $props[0],
+                'len'   => $props[1],
+                'flags' => $props[4] == 'N' ? 'not_null' : '',
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+            $i++;
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @ifx_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SELECT tabname FROM systables WHERE tabid >= 100';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/msql.php b/program/lib/DB/msql.php
new file mode 100644
index 000000000..81ca8553b
--- /dev/null
+++ b/program/lib/DB/msql.php
@@ -0,0 +1,810 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's msql extension
+ * for interacting with Mini SQL databases
+ *
+ * PHP's mSQL extension did weird things with NULL values prior to PHP
+ * 4.3.11 and 5.0.4.  Make sure your version of PHP meets or exceeds
+ * those versions.
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's msql extension
+ * for interacting with Mini SQL databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * PHP's mSQL extension did weird things with NULL values prior to PHP
+ * 4.3.11 and 5.0.4.  Make sure your version of PHP meets or exceeds
+ * those versions.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ * @since      Class not functional until Release 1.7.0
+ */
+class DB_msql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'msql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'msql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'emulate',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => false,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * The query result resource created by PHP
+     *
+     * Used to make affectedRows() work.  Only contains the result for
+     * data manipulation queries.  Contains false for other queries.
+     *
+     * @var resource
+     * @access private
+     */
+    var $_result;
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_msql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * Example of how to connect:
+     * <code>
+     * require_once 'DB.php';
+     * 
+     * // $dsn = 'msql://hostname/dbname';  // use a TCP connection
+     * $dsn = 'msql:///dbname';             // use a socket
+     * $options = array(
+     *     'portability' => DB_PORTABILITY_ALL,
+     * );
+     * 
+     * $db =& DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('msql')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $params = array();
+        if ($dsn['hostspec']) {
+            $params[] = $dsn['port']
+                        ? $dsn['hostspec'] . ',' . $dsn['port']
+                        : $dsn['hostspec'];
+        }
+
+        $connect_function = $persistent ? 'msql_pconnect' : 'msql_connect';
+
+        $ini = ini_get('track_errors');
+        $php_errormsg = '';
+        if ($ini) {
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+        } else {
+            ini_set('track_errors', 1);
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+            ini_set('track_errors', $ini);
+        }
+
+        if (!$this->connection) {
+            if (($err = @msql_error()) != '') {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $err);
+            } else {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+        }
+
+        if (!@msql_select_db($dsn['database'], $this->connection)) {
+            return $this->msqlRaiseError();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @msql_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        $result = @msql_query($query, $this->connection);
+        if (!$result) {
+            return $this->msqlRaiseError();
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        if (DB::isManip($query)) {
+            $this->_result = $result;
+            return DB_OK;
+        } else {
+            $this->_result = false;
+            return $result;
+        }
+    }
+
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal msql result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * PHP's mSQL extension did weird things with NULL values prior to PHP
+     * 4.3.11 and 5.0.4.  Make sure your version of PHP meets or exceeds
+     * those versions.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@msql_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @msql_fetch_array($result, MSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @msql_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @msql_free_result($result);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @msql_num_fields($result);
+        if (!$cols) {
+            return $this->msqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @msql_num_rows($result);
+        if ($rows === false) {
+            return $this->msqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ affected()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (!$this->_result) {
+            return 0;
+        }
+        return msql_affected_rows($this->_result);
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_msql::createSequence(), DB_msql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $repeat = false;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result =& $this->query("SELECT _seq FROM ${seqname}");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
+                $repeat = true;
+                $this->pushErrorHandling(PEAR_ERROR_RETURN);
+                $result = $this->createSequence($seq_name);
+                $this->popErrorHandling();
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } else {
+                $repeat = false;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        $result->free();
+        return $arr[0];
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * Also creates a new table to associate the sequence with.  Uses
+     * a separate table to ensure portability with other drivers.
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_msql::nextID(), DB_msql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $res = $this->query('CREATE TABLE ' . $seqname
+                            . ' (id INTEGER NOT NULL)');
+        if (DB::isError($res)) {
+            return $res;
+        }
+        $res = $this->query("CREATE SEQUENCE ON ${seqname}");
+        return $res;
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_msql::nextID(), DB_msql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * mSQL does not support delimited identifiers
+     *
+     * @param string $str  the identifier name to be quoted
+     *
+     * @return object  a DB_Error object
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.7.0
+     */
+    function quoteIdentifier($str)
+    {
+        return $this->raiseError(DB_ERROR_UNSUPPORTED);
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.7.0
+     */
+    function escapeSimple($str)
+    {
+        return addslashes($str);
+    }
+
+    // }}}
+    // {{{ msqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_msql::errorNative(), DB_msql::errorCode()
+     */
+    function msqlRaiseError($errno = null)
+    {
+        $native = $this->errorNative();
+        if ($errno === null) {
+            $errno = $this->errorCode($native);
+        }
+        return $this->raiseError($errno, null, null, null, $native);
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error message produced by the last query
+     *
+     * @return string  the DBMS' error message
+     */
+    function errorNative()
+    {
+        return @msql_error();
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from the database's text error message
+     *
+     * @param string $errormsg  the error message returned from the database
+     *
+     * @return integer  the error number from a DB_ERROR* constant
+     */
+    function errorCode($errormsg)
+    {
+        static $error_regexps;
+        if (!isset($error_regexps)) {
+            $error_regexps = array(
+                '/^Access to database denied/i'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/^Bad index name/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/^Bad order field/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Bad type for comparison/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Can\'t perform LIKE on/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Can\'t use TEXT fields in LIKE comparison/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Couldn\'t create temporary table/i'
+                    => DB_ERROR_CANNOT_CREATE,
+                '/^Error creating table file/i'
+                    => DB_ERROR_CANNOT_CREATE,
+                '/^Field .* cannot be null$/i'
+                    => DB_ERROR_CONSTRAINT_NOT_NULL,
+                '/^Index (field|condition) .* cannot be null$/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Invalid date format/i'
+                    => DB_ERROR_INVALID_DATE,
+                '/^Invalid time format/i'
+                    => DB_ERROR_INVALID,
+                '/^Literal value for .* is wrong type$/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/^No Database Selected/i'
+                    => DB_ERROR_NODBSELECTED,
+                '/^No value specified for field/i'
+                    => DB_ERROR_VALUE_COUNT_ON_ROW,
+                '/^Non unique value for unique index/i'
+                    => DB_ERROR_CONSTRAINT,
+                '/^Out of memory for temporary table/i'
+                    => DB_ERROR_CANNOT_CREATE,
+                '/^Permission denied/i'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/^Reference to un-selected table/i'
+                    => DB_ERROR_SYNTAX,
+                '/^syntax error/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Table .* exists$/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/^Unknown database/i'
+                    => DB_ERROR_NOSUCHDB,
+                '/^Unknown field/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/^Unknown (index|system variable)/i'
+                    => DB_ERROR_NOT_FOUND,
+                '/^Unknown table/i'
+                    => DB_ERROR_NOSUCHTABLE,
+                '/^Unqualified field/i'
+                    => DB_ERROR_SYNTAX,
+            );
+        }
+
+        foreach ($error_regexps as $regexp => $code) {
+            if (preg_match($regexp, $errormsg)) {
+                return $code;
+            }
+        }
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::setOption()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @msql_query("SELECT * FROM $result",
+                              $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->raiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @msql_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $tmp = @msql_fetch_field($id);
+
+            $flags = '';
+            if ($tmp->not_null) {
+                $flags .= 'not_null ';
+            }
+            if ($tmp->unique) {
+                $flags .= 'unique_key ';
+            }
+            $flags = trim($flags);
+
+            $res[$i] = array(
+                'table' => $case_func($tmp->table),
+                'name'  => $case_func($tmp->name),
+                'type'  => $tmp->type,
+                'len'   => msql_field_len($id, $i),
+                'flags' => $flags,
+            );
+
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @msql_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtain a list of a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return array  the array containing the list of objects requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'databases':
+                $id = @msql_list_dbs($this->connection);
+                break;
+            case 'tables':
+                $id = @msql_list_tables($this->dsn['database'],
+                                        $this->connection);
+                break;
+            default:
+                return null;
+        }
+        if (!$id) {
+            return $this->msqlRaiseError();
+        }
+        $out = array();
+        while ($row = @msql_fetch_row($id)) {
+            $out[] = $row[0];
+        }
+        return $out;
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/mssql.php b/program/lib/DB/mssql.php
new file mode 100644
index 000000000..a84db89f6
--- /dev/null
+++ b/program/lib/DB/mssql.php
@@ -0,0 +1,914 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's mssql extension
+ * for interacting with Microsoft SQL Server databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's mssql extension
+ * for interacting with Microsoft SQL Server databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_mssql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'mssql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'mssql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'emulate',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    // XXX Add here error codes ie: 'S100E' => DB_ERROR_SYNTAX
+    var $errorcode_map = array(
+        110   => DB_ERROR_VALUE_COUNT_ON_ROW,
+        155   => DB_ERROR_NOSUCHFIELD,
+        170   => DB_ERROR_SYNTAX,
+        207   => DB_ERROR_NOSUCHFIELD,
+        208   => DB_ERROR_NOSUCHTABLE,
+        245   => DB_ERROR_INVALID_NUMBER,
+        515   => DB_ERROR_CONSTRAINT_NOT_NULL,
+        547   => DB_ERROR_CONSTRAINT,
+        1913  => DB_ERROR_ALREADY_EXISTS,
+        2627  => DB_ERROR_CONSTRAINT,
+        2714  => DB_ERROR_ALREADY_EXISTS,
+        3701  => DB_ERROR_NOSUCHTABLE,
+        8134  => DB_ERROR_DIVZERO,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The database specified in the DSN
+     *
+     * It's a fix to allow calls to different databases in the same script.
+     *
+     * @var string
+     * @access private
+     */
+    var $_db = null;
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_mssql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('mssql') && !PEAR::loadExtension('sybase')
+            && !PEAR::loadExtension('sybase_ct'))
+        {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $params = array(
+            $dsn['hostspec'] ? $dsn['hostspec'] : 'localhost',
+            $dsn['username'] ? $dsn['username'] : null,
+            $dsn['password'] ? $dsn['password'] : null,
+        );
+        if ($dsn['port']) {
+            $params[0] .= ((substr(PHP_OS, 0, 3) == 'WIN') ? ',' : ':')
+                        . $dsn['port'];
+        }
+
+        $connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect';
+
+        $this->connection = @call_user_func_array($connect_function, $params);
+
+        if (!$this->connection) {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     @mssql_get_last_message());
+        }
+        if ($dsn['database']) {
+            if (!@mssql_select_db($dsn['database'], $this->connection)) {
+                return $this->raiseError(DB_ERROR_NODBSELECTED,
+                                         null, null, null,
+                                         @mssql_get_last_message());
+            }
+            $this->_db = $dsn['database'];
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @mssql_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        if (!@mssql_select_db($this->_db, $this->connection)) {
+            return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+        }
+        $query = $this->modifyQuery($query);
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @mssql_query('BEGIN TRAN', $this->connection);
+                if (!$result) {
+                    return $this->mssqlRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        $result = @mssql_query($query, $this->connection);
+        if (!$result) {
+            return $this->mssqlRaiseError();
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        return $ismanip ? DB_OK : $result;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal mssql result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return @mssql_next_result($result);
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@mssql_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @mssql_fetch_array($result, MSSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @mssql_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @mssql_free_result($result);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @mssql_num_fields($result);
+        if (!$cols) {
+            return $this->mssqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @mssql_num_rows($result);
+        if ($rows === false) {
+            return $this->mssqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            if (!@mssql_select_db($this->_db, $this->connection)) {
+                return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $result = @mssql_query('COMMIT TRAN', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mssqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            if (!@mssql_select_db($this->_db, $this->connection)) {
+                return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $result = @mssql_query('ROLLBACK TRAN', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mssqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (DB::isManip($this->last_query)) {
+            $res = @mssql_query('select @@rowcount', $this->connection);
+            if (!$res) {
+                return $this->mssqlRaiseError();
+            }
+            $ar = @mssql_fetch_row($res);
+            if (!$ar) {
+                $result = 0;
+            } else {
+                @mssql_free_result($res);
+                $result = $ar[0];
+            }
+        } else {
+            $result = 0;
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_mssql::createSequence(), DB_mssql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        if (!@mssql_select_db($this->_db, $this->connection)) {
+            return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+        }
+        $repeat = 0;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("INSERT INTO $seqname (vapor) VALUES (0)");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                ($result->getCode() == DB_ERROR || $result->getCode() == DB_ERROR_NOSUCHTABLE))
+            {
+                $repeat = 1;
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } elseif (!DB::isError($result)) {
+                $result =& $this->query("SELECT @@IDENTITY FROM $seqname");
+                $repeat = 0;
+            } else {
+                $repeat = false;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $result = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        return $result[0];
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_mssql::nextID(), DB_mssql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        return $this->query('CREATE TABLE '
+                            . $this->getSequenceName($seq_name)
+                            . ' ([id] [int] IDENTITY (1, 1) NOT NULL,'
+                            . ' [vapor] [int] NULL)');
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_mssql::nextID(), DB_mssql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * @param string $str  identifier name to be quoted
+     *
+     * @return string  quoted identifier string
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        return '[' . str_replace(']', ']]', $str) . ']';
+    }
+
+    // }}}
+    // {{{ mssqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_mssql::errorNative(), DB_mssql::errorCode()
+     */
+    function mssqlRaiseError($code = null)
+    {
+        $message = @mssql_get_last_message();
+        if (!$code) {
+            $code = $this->errorNative();
+        }
+        return $this->raiseError($this->errorCode($code, $message),
+                                 null, null, null, "$code - $message");
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code
+     */
+    function errorNative()
+    {
+        $res = @mssql_query('select @@ERROR as ErrorCode', $this->connection);
+        if (!$res) {
+            return DB_ERROR;
+        }
+        $row = @mssql_fetch_row($res);
+        return $row[0];
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from mssql's native codes.
+     *
+     * If <var>$nativecode</var> isn't known yet, it will be looked up.
+     *
+     * @param  mixed  $nativecode  mssql error code, if known
+     * @return integer  an error number from a DB error constant
+     * @see errorNative()
+     */
+    function errorCode($nativecode = null, $msg = '')
+    {
+        if (!$nativecode) {
+            $nativecode = $this->errorNative();
+        }
+        if (isset($this->errorcode_map[$nativecode])) {
+            if ($nativecode == 3701
+                && preg_match('/Cannot drop the index/i', $msg))
+            {
+                return DB_ERROR_NOT_FOUND;
+            }
+            return $this->errorcode_map[$nativecode];
+        } else {
+            return DB_ERROR;
+        }
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            if (!@mssql_select_db($this->_db, $this->connection)) {
+                return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $id = @mssql_query("SELECT * FROM $result WHERE 1=0",
+                               $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->mssqlRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @mssql_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func(@mssql_field_name($id, $i)),
+                'type'  => @mssql_field_type($id, $i),
+                'len'   => @mssql_field_length($id, $i),
+                // We only support flags for table
+                'flags' => $got_string
+                           ? $this->_mssql_field_flags($result,
+                                                       @mssql_field_name($id, $i))
+                           : '',
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @mssql_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ _mssql_field_flags()
+
+    /**
+     * Get a column's flags
+     *
+     * Supports "not_null", "primary_key",
+     * "auto_increment" (mssql identity), "timestamp" (mssql timestamp),
+     * "unique_key" (mssql unique index, unique check or primary_key) and
+     * "multiple_key" (multikey index)
+     *
+     * mssql timestamp is NOT similar to the mysql timestamp so this is maybe
+     * not useful at all - is the behaviour of mysql_field_flags that primary
+     * keys are alway unique? is the interpretation of multiple_key correct?
+     *
+     * @param string $table   the table name
+     * @param string $column  the field name
+     *
+     * @return string  the flags
+     *
+     * @access private
+     * @author Joern Barthel <j_barthel@web.de>
+     */
+    function _mssql_field_flags($table, $column)
+    {
+        static $tableName = null;
+        static $flags = array();
+
+        if ($table != $tableName) {
+
+            $flags = array();
+            $tableName = $table;
+
+            // get unique and primary keys
+            $res = $this->getAll("EXEC SP_HELPINDEX[$table]", DB_FETCHMODE_ASSOC);
+
+            foreach ($res as $val) {
+                $keys = explode(', ', $val['index_keys']);
+
+                if (sizeof($keys) > 1) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'multiple_key');
+                    }
+                }
+
+                if (strpos($val['index_description'], 'primary key')) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'primary_key');
+                    }
+                } elseif (strpos($val['index_description'], 'unique')) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'unique_key');
+                    }
+                }
+            }
+
+            // get auto_increment, not_null and timestamp
+            $res = $this->getAll("EXEC SP_COLUMNS[$table]", DB_FETCHMODE_ASSOC);
+
+            foreach ($res as $val) {
+                $val = array_change_key_case($val, CASE_LOWER);
+                if ($val['nullable'] == '0') {
+                    $this->_add_flag($flags[$val['column_name']], 'not_null');
+                }
+                if (strpos($val['type_name'], 'identity')) {
+                    $this->_add_flag($flags[$val['column_name']], 'auto_increment');
+                }
+                if (strpos($val['type_name'], 'timestamp')) {
+                    $this->_add_flag($flags[$val['column_name']], 'timestamp');
+                }
+            }
+        }
+
+        if (array_key_exists($column, $flags)) {
+            return(implode(' ', $flags[$column]));
+        }
+        return '';
+    }
+
+    // }}}
+    // {{{ _add_flag()
+
+    /**
+     * Adds a string to the flags array if the flag is not yet in there
+     * - if there is no flag present the array is created
+     *
+     * @param array  &$array  the reference to the flag-array
+     * @param string $value   the flag value
+     *
+     * @return void
+     *
+     * @access private
+     * @author Joern Barthel <j_barthel@web.de>
+     */
+    function _add_flag(&$array, $value)
+    {
+        if (!is_array($array)) {
+            $array = array($value);
+        } elseif (!in_array($value, $array)) {
+            array_push($array, $value);
+        }
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return "SELECT name FROM sysobjects WHERE type = 'U'"
+                       . ' ORDER BY name';
+            case 'views':
+                return "SELECT name FROM sysobjects WHERE type = 'V'";
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/mysql.php b/program/lib/DB/mysql.php
new file mode 100644
index 000000000..5b737b606
--- /dev/null
+++ b/program/lib/DB/mysql.php
@@ -0,0 +1,1034 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's mysql extension
+ * for interacting with MySQL databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's mysql extension
+ * for interacting with MySQL databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_mysql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'mysql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'mysql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => '4.2.0',
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+        1004 => DB_ERROR_CANNOT_CREATE,
+        1005 => DB_ERROR_CANNOT_CREATE,
+        1006 => DB_ERROR_CANNOT_CREATE,
+        1007 => DB_ERROR_ALREADY_EXISTS,
+        1008 => DB_ERROR_CANNOT_DROP,
+        1022 => DB_ERROR_ALREADY_EXISTS,
+        1044 => DB_ERROR_ACCESS_VIOLATION,
+        1046 => DB_ERROR_NODBSELECTED,
+        1048 => DB_ERROR_CONSTRAINT,
+        1049 => DB_ERROR_NOSUCHDB,
+        1050 => DB_ERROR_ALREADY_EXISTS,
+        1051 => DB_ERROR_NOSUCHTABLE,
+        1054 => DB_ERROR_NOSUCHFIELD,
+        1061 => DB_ERROR_ALREADY_EXISTS,
+        1062 => DB_ERROR_ALREADY_EXISTS,
+        1064 => DB_ERROR_SYNTAX,
+        1091 => DB_ERROR_NOT_FOUND,
+        1100 => DB_ERROR_NOT_LOCKED,
+        1136 => DB_ERROR_VALUE_COUNT_ON_ROW,
+        1142 => DB_ERROR_ACCESS_VIOLATION,
+        1146 => DB_ERROR_NOSUCHTABLE,
+        1216 => DB_ERROR_CONSTRAINT,
+        1217 => DB_ERROR_CONSTRAINT,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The database specified in the DSN
+     *
+     * It's a fix to allow calls to different databases in the same script.
+     *
+     * @var string
+     * @access private
+     */
+    var $_db = '';
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_mysql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's mysql driver supports the following extra DSN options:
+     *   + new_link      If set to true, causes subsequent calls to connect()
+     *                    to return a new connection link instead of the
+     *                    existing one.  WARNING: this is not portable to
+     *                    other DBMS's. Available since PEAR DB 1.7.0.
+     *   + client_flags  Any combination of MYSQL_CLIENT_* constants.
+     *                    Only used if PHP is at version 4.3.0 or greater.
+     *                    Available since PEAR DB 1.7.0.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('mysql')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $params = array();
+        if ($dsn['protocol'] && $dsn['protocol'] == 'unix') {
+            $params[0] = ':' . $dsn['socket'];
+        } else {
+            $params[0] = $dsn['hostspec'] ? $dsn['hostspec']
+                         : 'localhost';
+            if ($dsn['port']) {
+                $params[0] .= ':' . $dsn['port'];
+            }
+        }
+        $params[] = $dsn['username'] ? $dsn['username'] : null;
+        $params[] = $dsn['password'] ? $dsn['password'] : null;
+
+        if (!$persistent) {
+            if (isset($dsn['new_link'])
+                && ($dsn['new_link'] == 'true' || $dsn['new_link'] === true))
+            {
+                $params[] = true;
+            } else {
+                $params[] = false;
+            }
+        }
+        if (version_compare(phpversion(), '4.3.0', '>=')) {
+            $params[] = isset($dsn['client_flags'])
+                        ? $dsn['client_flags'] : null;
+        }
+
+        $connect_function = $persistent ? 'mysql_pconnect' : 'mysql_connect';
+
+        $ini = ini_get('track_errors');
+        $php_errormsg = '';
+        if ($ini) {
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+        } else {
+            ini_set('track_errors', 1);
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+            ini_set('track_errors', $ini);
+        }
+
+        if (!$this->connection) {
+            if (($err = @mysql_error()) != '') {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null, 
+                                         $err);
+            } else {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+        }
+
+        if ($dsn['database']) {
+            if (!@mysql_select_db($dsn['database'], $this->connection)) {
+                return $this->mysqlRaiseError();
+            }
+            $this->_db = $dsn['database'];
+        }
+
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @mysql_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * Generally uses mysql_query().  If you want to use
+     * mysql_unbuffered_query() set the "result_buffering" option to 0 using
+     * setOptions().  This option was added in Release 1.7.0.
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        if ($this->_db) {
+            if (!@mysql_select_db($this->_db, $this->connection)) {
+                return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
+            }
+        }
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @mysql_query('SET AUTOCOMMIT=0', $this->connection);
+                $result = @mysql_query('BEGIN', $this->connection);
+                if (!$result) {
+                    return $this->mysqlRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        if (!$this->options['result_buffering']) {
+            $result = @mysql_unbuffered_query($query, $this->connection);
+        } else {
+            $result = @mysql_query($query, $this->connection);
+        }
+        if (!$result) {
+            return $this->mysqlRaiseError();
+        }
+        if (is_resource($result)) {
+            return $result;
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal mysql result pointer to the next available result
+     *
+     * This method has not been implemented yet.
+     *
+     * @param a valid sql result resource
+     *
+     * @return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@mysql_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @mysql_fetch_array($result, MYSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @mysql_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            /*
+             * Even though this DBMS already trims output, we do this because
+             * a field might have intentional whitespace at the end that
+             * gets removed by DB_PORTABILITY_RTRIM under another driver.
+             */
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @mysql_free_result($result);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @mysql_num_fields($result);
+        if (!$cols) {
+            return $this->mysqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @mysql_num_rows($result);
+        if ($rows === null) {
+            return $this->mysqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            if ($this->_db) {
+                if (!@mysql_select_db($this->_db, $this->connection)) {
+                    return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
+                }
+            }
+            $result = @mysql_query('COMMIT', $this->connection);
+            $result = @mysql_query('SET AUTOCOMMIT=1', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mysqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            if ($this->_db) {
+                if (!@mysql_select_db($this->_db, $this->connection)) {
+                    return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
+                }
+            }
+            $result = @mysql_query('ROLLBACK', $this->connection);
+            $result = @mysql_query('SET AUTOCOMMIT=1', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mysqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (DB::isManip($this->last_query)) {
+            return @mysql_affected_rows($this->connection);
+        } else {
+            return 0;
+        }
+     }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_mysql::createSequence(), DB_mysql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        do {
+            $repeat = 0;
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("UPDATE ${seqname} ".
+                                   'SET id=LAST_INSERT_ID(id+1)');
+            $this->popErrorHandling();
+            if ($result === DB_OK) {
+                // COMMON CASE
+                $id = @mysql_insert_id($this->connection);
+                if ($id != 0) {
+                    return $id;
+                }
+                // EMPTY SEQ TABLE
+                // Sequence table must be empty for some reason, so fill
+                // it and return 1 and obtain a user-level lock
+                $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                if ($result == 0) {
+                    // Failed to get the lock
+                    return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
+                }
+
+                // add the default value
+                $result = $this->query("REPLACE INTO ${seqname} (id) VALUES (0)");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+
+                // Release the lock
+                $result = $this->getOne('SELECT RELEASE_LOCK('
+                                        . "'${seqname}_lock')");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                // We know what the result will be, so no need to try again
+                return 1;
+
+            } elseif ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE)
+            {
+                // ONDEMAND TABLE CREATION
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                } else {
+                    $repeat = 1;
+                }
+
+            } elseif (DB::isError($result) &&
+                      $result->getCode() == DB_ERROR_ALREADY_EXISTS)
+            {
+                // BACKWARDS COMPAT
+                // see _BCsequence() comment
+                $result = $this->_BCsequence($seqname);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                $repeat = 1;
+            }
+        } while ($repeat);
+
+        return $this->raiseError($result);
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_mysql::nextID(), DB_mysql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $res = $this->query('CREATE TABLE ' . $seqname
+                            . ' (id INTEGER UNSIGNED AUTO_INCREMENT NOT NULL,'
+                            . ' PRIMARY KEY(id))');
+        if (DB::isError($res)) {
+            return $res;
+        }
+        // insert yields value 1, nextId call will generate ID 2
+        $res = $this->query("INSERT INTO ${seqname} (id) VALUES (0)");
+        if (DB::isError($res)) {
+            return $res;
+        }
+        // so reset to zero
+        return $this->query("UPDATE ${seqname} SET id = 0");
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_mysql::nextID(), DB_mysql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ _BCsequence()
+
+    /**
+     * Backwards compatibility with old sequence emulation implementation
+     * (clean up the dupes)
+     *
+     * @param string $seqname  the sequence name to clean up
+     *
+     * @return bool  true on success.  A DB_Error object on failure.
+     *
+     * @access private
+     */
+    function _BCsequence($seqname)
+    {
+        // Obtain a user-level lock... this will release any previous
+        // application locks, but unlike LOCK TABLES, it does not abort
+        // the current transaction and is much less frequently used.
+        $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
+        if (DB::isError($result)) {
+            return $result;
+        }
+        if ($result == 0) {
+            // Failed to get the lock, can't do the conversion, bail
+            // with a DB_ERROR_NOT_LOCKED error
+            return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
+        }
+
+        $highest_id = $this->getOne("SELECT MAX(id) FROM ${seqname}");
+        if (DB::isError($highest_id)) {
+            return $highest_id;
+        }
+        // This should kill all rows except the highest
+        // We should probably do something if $highest_id isn't
+        // numeric, but I'm at a loss as how to handle that...
+        $result = $this->query('DELETE FROM ' . $seqname
+                               . " WHERE id <> $highest_id");
+        if (DB::isError($result)) {
+            return $result;
+        }
+
+        // If another thread has been waiting for this lock,
+        // it will go thru the above procedure, but will have no
+        // real effect
+        $result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')");
+        if (DB::isError($result)) {
+            return $result;
+        }
+        return true;
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * MySQL can't handle the backtick character (<kbd>`</kbd>) in
+     * table or column names.
+     *
+     * @param string $str  identifier name to be quoted
+     *
+     * @return string  quoted identifier string
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        return '`' . $str . '`';
+    }
+
+    // }}}
+    // {{{ quote()
+
+    /**
+     * @deprecated  Deprecated in release 1.6.0
+     */
+    function quote($str)
+    {
+        return $this->quoteSmart($str);
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function escapeSimple($str)
+    {
+        if (function_exists('mysql_real_escape_string')) {
+            return @mysql_real_escape_string($str, $this->connection);
+        } else {
+            return @mysql_escape_string($str);
+        }
+    }
+
+    // }}}
+    // {{{ modifyQuery()
+
+    /**
+     * Changes a query string for various DBMS specific reasons
+     *
+     * This little hack lets you know how many rows were deleted
+     * when running a "DELETE FROM table" query.  Only implemented
+     * if the DB_PORTABILITY_DELETE_COUNT portability option is on.
+     *
+     * @param string $query  the query string to modify
+     *
+     * @return string  the modified query string
+     *
+     * @access protected
+     * @see DB_common::setOption()
+     */
+    function modifyQuery($query)
+    {
+        if ($this->options['portability'] & DB_PORTABILITY_DELETE_COUNT) {
+            // "DELETE FROM table" gives 0 affected rows in MySQL.
+            // This little hack lets you know how many rows were deleted.
+            if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
+                $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
+                                      'DELETE FROM \1 WHERE 1=1', $query);
+            }
+        }
+        return $query;
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        if (DB::isManip($query)) {
+            return $query . " LIMIT $count";
+        } else {
+            return $query . " LIMIT $from, $count";
+        }
+    }
+
+    // }}}
+    // {{{ mysqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_mysql::errorNative(), DB_common::errorCode()
+     */
+    function mysqlRaiseError($errno = null)
+    {
+        if ($errno === null) {
+            if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
+                $this->errorcode_map[1022] = DB_ERROR_CONSTRAINT;
+                $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT_NOT_NULL;
+                $this->errorcode_map[1062] = DB_ERROR_CONSTRAINT;
+            } else {
+                // Doing this in case mode changes during runtime.
+                $this->errorcode_map[1022] = DB_ERROR_ALREADY_EXISTS;
+                $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT;
+                $this->errorcode_map[1062] = DB_ERROR_ALREADY_EXISTS;
+            }
+            $errno = $this->errorCode(mysql_errno($this->connection));
+        }
+        return $this->raiseError($errno, null, null, null,
+                                 @mysql_errno($this->connection) . ' ** ' .
+                                 @mysql_error($this->connection));
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code
+     */
+    function errorNative()
+    {
+        return @mysql_errno($this->connection);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @mysql_list_fields($this->dsn['database'],
+                                     $result, $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->mysqlRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @mysql_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $case_func(@mysql_field_table($id, $i)),
+                'name'  => $case_func(@mysql_field_name($id, $i)),
+                'type'  => @mysql_field_type($id, $i),
+                'len'   => @mysql_field_len($id, $i),
+                'flags' => @mysql_field_flags($id, $i),
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @mysql_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SHOW TABLES';
+            case 'users':
+                return 'SELECT DISTINCT User FROM mysql.user';
+            case 'databases':
+                return 'SHOW DATABASES';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/mysqli.php b/program/lib/DB/mysqli.php
new file mode 100644
index 000000000..bf742e27f
--- /dev/null
+++ b/program/lib/DB/mysqli.php
@@ -0,0 +1,1076 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's mysqli extension
+ * for interacting with MySQL databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's mysqli extension
+ * for interacting with MySQL databases
+ *
+ * This is for MySQL versions 4.1 and above.  Requires PHP 5.
+ *
+ * Note that persistent connections no longer exist.
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ * @since      Class functional since Release 1.6.3
+ */
+class DB_mysqli extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'mysqli';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'mysqli';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => false,
+        'prepare'       => false,
+        'ssl'           => true,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+        1004 => DB_ERROR_CANNOT_CREATE,
+        1005 => DB_ERROR_CANNOT_CREATE,
+        1006 => DB_ERROR_CANNOT_CREATE,
+        1007 => DB_ERROR_ALREADY_EXISTS,
+        1008 => DB_ERROR_CANNOT_DROP,
+        1022 => DB_ERROR_ALREADY_EXISTS,
+        1044 => DB_ERROR_ACCESS_VIOLATION,
+        1046 => DB_ERROR_NODBSELECTED,
+        1048 => DB_ERROR_CONSTRAINT,
+        1049 => DB_ERROR_NOSUCHDB,
+        1050 => DB_ERROR_ALREADY_EXISTS,
+        1051 => DB_ERROR_NOSUCHTABLE,
+        1054 => DB_ERROR_NOSUCHFIELD,
+        1061 => DB_ERROR_ALREADY_EXISTS,
+        1062 => DB_ERROR_ALREADY_EXISTS,
+        1064 => DB_ERROR_SYNTAX,
+        1091 => DB_ERROR_NOT_FOUND,
+        1100 => DB_ERROR_NOT_LOCKED,
+        1136 => DB_ERROR_VALUE_COUNT_ON_ROW,
+        1142 => DB_ERROR_ACCESS_VIOLATION,
+        1146 => DB_ERROR_NOSUCHTABLE,
+        1216 => DB_ERROR_CONSTRAINT,
+        1217 => DB_ERROR_CONSTRAINT,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The database specified in the DSN
+     *
+     * It's a fix to allow calls to different databases in the same script.
+     *
+     * @var string
+     * @access private
+     */
+    var $_db = '';
+
+    /**
+     * Array for converting MYSQLI_*_FLAG constants to text values
+     * @var    array
+     * @access public
+     * @since  Property available since Release 1.6.5
+     */
+    var $mysqli_flags = array(
+        MYSQLI_NOT_NULL_FLAG        => 'not_null',
+        MYSQLI_PRI_KEY_FLAG         => 'primary_key',
+        MYSQLI_UNIQUE_KEY_FLAG      => 'unique_key',
+        MYSQLI_MULTIPLE_KEY_FLAG    => 'multiple_key',
+        MYSQLI_BLOB_FLAG            => 'blob',
+        MYSQLI_UNSIGNED_FLAG        => 'unsigned',
+        MYSQLI_ZEROFILL_FLAG        => 'zerofill',
+        MYSQLI_AUTO_INCREMENT_FLAG  => 'auto_increment',
+        MYSQLI_TIMESTAMP_FLAG       => 'timestamp',
+        MYSQLI_SET_FLAG             => 'set',
+        // MYSQLI_NUM_FLAG             => 'numeric',  // unnecessary
+        // MYSQLI_PART_KEY_FLAG        => 'multiple_key',  // duplicatvie
+        MYSQLI_GROUP_FLAG           => 'group_by'
+    );
+
+    /**
+     * Array for converting MYSQLI_TYPE_* constants to text values
+     * @var    array
+     * @access public
+     * @since  Property available since Release 1.6.5
+     */
+    var $mysqli_types = array(
+        MYSQLI_TYPE_DECIMAL     => 'decimal',
+        MYSQLI_TYPE_TINY        => 'tinyint',
+        MYSQLI_TYPE_SHORT       => 'int',
+        MYSQLI_TYPE_LONG        => 'int',
+        MYSQLI_TYPE_FLOAT       => 'float',
+        MYSQLI_TYPE_DOUBLE      => 'double',
+        // MYSQLI_TYPE_NULL        => 'DEFAULT NULL',  // let flags handle it
+        MYSQLI_TYPE_TIMESTAMP   => 'timestamp',
+        MYSQLI_TYPE_LONGLONG    => 'bigint',
+        MYSQLI_TYPE_INT24       => 'mediumint',
+        MYSQLI_TYPE_DATE        => 'date',
+        MYSQLI_TYPE_TIME        => 'time',
+        MYSQLI_TYPE_DATETIME    => 'datetime',
+        MYSQLI_TYPE_YEAR        => 'year',
+        MYSQLI_TYPE_NEWDATE     => 'date',
+        MYSQLI_TYPE_ENUM        => 'enum',
+        MYSQLI_TYPE_SET         => 'set',
+        MYSQLI_TYPE_TINY_BLOB   => 'tinyblob',
+        MYSQLI_TYPE_MEDIUM_BLOB => 'mediumblob',
+        MYSQLI_TYPE_LONG_BLOB   => 'longblob',
+        MYSQLI_TYPE_BLOB        => 'blob',
+        MYSQLI_TYPE_VAR_STRING  => 'varchar',
+        MYSQLI_TYPE_STRING      => 'char',
+        MYSQLI_TYPE_GEOMETRY    => 'geometry',
+    );
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_mysqli()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's mysqli driver supports the following extra DSN options:
+     *   + When the 'ssl' $option passed to DB::connect() is true:
+     *     + key      The path to the key file.
+     *     + cert     The path to the certificate file.
+     *     + ca       The path to the certificate authority file.
+     *     + capath   The path to a directory that contains trusted SSL
+     *                 CA certificates in pem format.
+     *     + cipher   The list of allowable ciphers for SSL encryption.
+     *
+     * Example of how to connect using SSL:
+     * <code>
+     * require_once 'DB.php';
+     * 
+     * $dsn = array(
+     *     'phptype'  => 'mysqli',
+     *     'username' => 'someuser',
+     *     'password' => 'apasswd',
+     *     'hostspec' => 'localhost',
+     *     'database' => 'thedb',
+     *     'key'      => 'client-key.pem',
+     *     'cert'     => 'client-cert.pem',
+     *     'ca'       => 'cacert.pem',
+     *     'capath'   => '/path/to/ca/dir',
+     *     'cipher'   => 'AES',
+     * );
+     * 
+     * $options = array(
+     *     'ssl' => true,
+     * );
+     * 
+     * $db =& DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('mysqli')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $ini = ini_get('track_errors');
+        ini_set('track_errors', 1);
+        $php_errormsg = '';
+
+        if ($this->getOption('ssl') === true) {
+            $init = mysqli_init();
+            mysqli_ssl_set(
+                $init,
+                empty($dsn['key'])    ? null : $dsn['key'],
+                empty($dsn['cert'])   ? null : $dsn['cert'],
+                empty($dsn['ca'])     ? null : $dsn['ca'],
+                empty($dsn['capath']) ? null : $dsn['capath'],
+                empty($dsn['cipher']) ? null : $dsn['cipher']
+            );
+            if ($this->connection = @mysqli_real_connect(
+                    $init,
+                    $dsn['hostspec'],
+                    $dsn['username'],
+                    $dsn['password'],
+                    $dsn['database'],
+                    $dsn['port'],
+                    $dsn['socket']))
+            {
+                $this->connection = $init;
+            }
+        } else {
+            $this->connection = @mysqli_connect(
+                $dsn['hostspec'],
+                $dsn['username'],
+                $dsn['password'],
+                $dsn['database'],
+                $dsn['port'],
+                $dsn['socket']
+            );
+        }
+
+        ini_set('track_errors', $ini);
+
+        if (!$this->connection) {
+            if (($err = @mysqli_connect_error()) != '') {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $err);
+            } else {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+        }
+
+        if ($dsn['database']) {
+            $this->_db = $dsn['database'];
+        }
+
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @mysqli_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        if ($this->_db) {
+            if (!@mysqli_select_db($this->connection, $this->_db)) {
+                return $this->mysqliRaiseError(DB_ERROR_NODBSELECTED);
+            }
+        }
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=0');
+                $result = @mysqli_query($this->connection, 'BEGIN');
+                if (!$result) {
+                    return $this->mysqliRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        $result = @mysqli_query($this->connection, $query);
+        if (!$result) {
+            return $this->mysqliRaiseError();
+        }
+        if (is_object($result)) {
+            return $result;
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal mysql result pointer to the next available result.
+     *
+     * This method has not been implemented yet.
+     *
+     * @param resource $result a valid sql result resource
+     * @return false
+     * @access public
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@mysqli_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @mysqli_fetch_array($result, MYSQLI_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @mysqli_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            /*
+             * Even though this DBMS already trims output, we do this because
+             * a field might have intentional whitespace at the end that
+             * gets removed by DB_PORTABILITY_RTRIM under another driver.
+             */
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @mysqli_free_result($result);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @mysqli_num_fields($result);
+        if (!$cols) {
+            return $this->mysqliRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @mysqli_num_rows($result);
+        if ($rows === null) {
+            return $this->mysqliRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            if ($this->_db) {
+                if (!@mysqli_select_db($this->connection, $this->_db)) {
+                    return $this->mysqliRaiseError(DB_ERROR_NODBSELECTED);
+                }
+            }
+            $result = @mysqli_query($this->connection, 'COMMIT');
+            $result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=1');
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mysqliRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            if ($this->_db) {
+                if (!@mysqli_select_db($this->connection, $this->_db)) {
+                    return $this->mysqliRaiseError(DB_ERROR_NODBSELECTED);
+                }
+            }
+            $result = @mysqli_query($this->connection, 'ROLLBACK');
+            $result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=1');
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->mysqliRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (DB::isManip($this->last_query)) {
+            return @mysqli_affected_rows($this->connection);
+        } else {
+            return 0;
+        }
+     }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_mysqli::createSequence(), DB_mysqli::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        do {
+            $repeat = 0;
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query('UPDATE ' . $seqname
+                                   . ' SET id = LAST_INSERT_ID(id + 1)');
+            $this->popErrorHandling();
+            if ($result === DB_OK) {
+                // COMMON CASE
+                $id = @mysqli_insert_id($this->connection);
+                if ($id != 0) {
+                    return $id;
+                }
+
+                // EMPTY SEQ TABLE
+                // Sequence table must be empty for some reason,
+                // so fill it and return 1
+                // Obtain a user-level lock
+                $result = $this->getOne('SELECT GET_LOCK('
+                                        . "'${seqname}_lock', 10)");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                if ($result == 0) {
+                    return $this->mysqliRaiseError(DB_ERROR_NOT_LOCKED);
+                }
+
+                // add the default value
+                $result = $this->query('REPLACE INTO ' . $seqname
+                                       . ' (id) VALUES (0)');
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+
+                // Release the lock
+                $result = $this->getOne('SELECT RELEASE_LOCK('
+                                        . "'${seqname}_lock')");
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                // We know what the result will be, so no need to try again
+                return 1;
+
+            } elseif ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE)
+            {
+                // ONDEMAND TABLE CREATION
+                $result = $this->createSequence($seq_name);
+
+                // Since createSequence initializes the ID to be 1,
+                // we do not need to retrieve the ID again (or we will get 2)
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                } else {
+                    // First ID of a newly created sequence is 1
+                    return 1;
+                }
+
+            } elseif (DB::isError($result) &&
+                      $result->getCode() == DB_ERROR_ALREADY_EXISTS)
+            {
+                // BACKWARDS COMPAT
+                // see _BCsequence() comment
+                $result = $this->_BCsequence($seqname);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                $repeat = 1;
+            }
+        } while ($repeat);
+
+        return $this->raiseError($result);
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_mysqli::nextID(), DB_mysqli::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $res = $this->query('CREATE TABLE ' . $seqname
+                            . ' (id INTEGER UNSIGNED AUTO_INCREMENT NOT NULL,'
+                            . ' PRIMARY KEY(id))');
+        if (DB::isError($res)) {
+            return $res;
+        }
+        // insert yields value 1, nextId call will generate ID 2
+        return $this->query("INSERT INTO ${seqname} (id) VALUES (0)");
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_mysql::nextID(), DB_mysql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ _BCsequence()
+
+    /**
+     * Backwards compatibility with old sequence emulation implementation
+     * (clean up the dupes)
+     *
+     * @param string $seqname  the sequence name to clean up
+     *
+     * @return bool  true on success.  A DB_Error object on failure.
+     *
+     * @access private
+     */
+    function _BCsequence($seqname)
+    {
+        // Obtain a user-level lock... this will release any previous
+        // application locks, but unlike LOCK TABLES, it does not abort
+        // the current transaction and is much less frequently used.
+        $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
+        if (DB::isError($result)) {
+            return $result;
+        }
+        if ($result == 0) {
+            // Failed to get the lock, can't do the conversion, bail
+            // with a DB_ERROR_NOT_LOCKED error
+            return $this->mysqliRaiseError(DB_ERROR_NOT_LOCKED);
+        }
+
+        $highest_id = $this->getOne("SELECT MAX(id) FROM ${seqname}");
+        if (DB::isError($highest_id)) {
+            return $highest_id;
+        }
+
+        // This should kill all rows except the highest
+        // We should probably do something if $highest_id isn't
+        // numeric, but I'm at a loss as how to handle that...
+        $result = $this->query('DELETE FROM ' . $seqname
+                               . " WHERE id <> $highest_id");
+        if (DB::isError($result)) {
+            return $result;
+        }
+
+        // If another thread has been waiting for this lock,
+        // it will go thru the above procedure, but will have no
+        // real effect
+        $result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')");
+        if (DB::isError($result)) {
+            return $result;
+        }
+        return true;
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * MySQL can't handle the backtick character (<kbd>`</kbd>) in
+     * table or column names.
+     *
+     * @param string $str  identifier name to be quoted
+     *
+     * @return string  quoted identifier string
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        return '`' . $str . '`';
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function escapeSimple($str)
+    {
+        return @mysqli_real_escape_string($this->connection, $str);
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        if (DB::isManip($query)) {
+            return $query . " LIMIT $count";
+        } else {
+            return $query . " LIMIT $from, $count";
+        }
+    }
+
+    // }}}
+    // {{{ mysqliRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_mysqli::errorNative(), DB_common::errorCode()
+     */
+    function mysqliRaiseError($errno = null)
+    {
+        if ($errno === null) {
+            if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
+                $this->errorcode_map[1022] = DB_ERROR_CONSTRAINT;
+                $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT_NOT_NULL;
+                $this->errorcode_map[1062] = DB_ERROR_CONSTRAINT;
+            } else {
+                // Doing this in case mode changes during runtime.
+                $this->errorcode_map[1022] = DB_ERROR_ALREADY_EXISTS;
+                $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT;
+                $this->errorcode_map[1062] = DB_ERROR_ALREADY_EXISTS;
+            }
+            $errno = $this->errorCode(mysqli_errno($this->connection));
+        }
+        return $this->raiseError($errno, null, null, null,
+                                 @mysqli_errno($this->connection) . ' ** ' .
+                                 @mysqli_error($this->connection));
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code
+     */
+    function errorNative()
+    {
+        return @mysqli_errno($this->connection);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::setOption()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @mysqli_query($this->connection,
+                                "SELECT * FROM $result LIMIT 0");
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_a($id, 'mysqli_result')) {
+            return $this->mysqliRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @mysqli_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $tmp = @mysqli_fetch_field($id);
+
+            $flags = '';
+            foreach ($this->mysqli_flags as $const => $means) {
+                if ($tmp->flags & $const) {
+                    $flags .= $means . ' ';
+                }
+            }
+            if ($tmp->def) {
+                $flags .= 'default_' . rawurlencode($tmp->def);
+            }
+            $flags = trim($flags);
+
+            $res[$i] = array(
+                'table' => $case_func($tmp->table),
+                'name'  => $case_func($tmp->name),
+                'type'  => isset($this->mysqli_types[$tmp->type])
+                                    ? $this->mysqli_types[$tmp->type]
+                                    : 'unknown',
+                'len'   => $tmp->max_length,
+                'flags' => $flags,
+            );
+
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @mysqli_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SHOW TABLES';
+            case 'users':
+                return 'SELECT DISTINCT User FROM mysql.user';
+            case 'databases':
+                return 'SHOW DATABASES';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/oci8.php b/program/lib/DB/oci8.php
new file mode 100644
index 000000000..c610a04e8
--- /dev/null
+++ b/program/lib/DB/oci8.php
@@ -0,0 +1,1117 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's oci8 extension
+ * for interacting with Oracle databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     James L. Pine <jlp@valinux.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's oci8 extension
+ * for interacting with Oracle databases
+ *
+ * Definitely works with versions 8 and 9 of Oracle.
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * Be aware...  OCIError() only appears to return anything when given a
+ * statement, so functions return the generic DB_ERROR instead of more
+ * useful errors that have to do with feedback from the database.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     James L. Pine <jlp@valinux.com>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_oci8 extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'oci8';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'oci8';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => '5.0.0',
+        'numrows'       => 'subquery',
+        'pconnect'      => true,
+        'prepare'       => true,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+        1    => DB_ERROR_CONSTRAINT,
+        900  => DB_ERROR_SYNTAX,
+        904  => DB_ERROR_NOSUCHFIELD,
+        913  => DB_ERROR_VALUE_COUNT_ON_ROW,
+        921  => DB_ERROR_SYNTAX,
+        923  => DB_ERROR_SYNTAX,
+        942  => DB_ERROR_NOSUCHTABLE,
+        955  => DB_ERROR_ALREADY_EXISTS,
+        1400 => DB_ERROR_CONSTRAINT_NOT_NULL,
+        1401 => DB_ERROR_INVALID,
+        1407 => DB_ERROR_CONSTRAINT_NOT_NULL,
+        1418 => DB_ERROR_NOT_FOUND,
+        1476 => DB_ERROR_DIVZERO,
+        1722 => DB_ERROR_INVALID_NUMBER,
+        2289 => DB_ERROR_NOSUCHTABLE,
+        2291 => DB_ERROR_CONSTRAINT,
+        2292 => DB_ERROR_CONSTRAINT,
+        2449 => DB_ERROR_CONSTRAINT,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * Stores the $data passed to execute() in the oci8 driver
+     *
+     * Gets reset to array() when simpleQuery() is run.
+     *
+     * Needed in case user wants to call numRows() after prepare/execute
+     * was used.
+     *
+     * @var array
+     * @access private
+     */
+    var $_data = array();
+
+    /**
+     * The result or statement handle from the most recently executed query
+     * @var resource
+     */
+    var $last_stmt;
+
+    /**
+     * Is the given prepared statement a data manipulation query?
+     * @var array
+     * @access private
+     */
+    var $manip_query = array();
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_oci8()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * If PHP is at version 5.0.0 or greater:
+     *   + Generally, oci_connect() or oci_pconnect() are used.
+     *   + But if the new_link DSN option is set to true, oci_new_connect()
+     *     is used.
+     *
+     * When using PHP version 4.x, OCILogon() or OCIPLogon() are used.
+     *
+     * PEAR DB's oci8 driver supports the following extra DSN options:
+     *   + charset       The character set to be used on the connection.
+     *                    Only used if PHP is at version 5.0.0 or greater
+     *                    and the Oracle server is at 9.2 or greater.
+     *                    Available since PEAR DB 1.7.0.
+     *   + new_link      If set to true, causes subsequent calls to
+     *                    connect() to return a new connection link
+     *                    instead of the existing one.  WARNING: this is
+     *                    not portable to other DBMS's.
+     *                    Available since PEAR DB 1.7.0.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('oci8')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        if (function_exists('oci_connect')) {
+            if (isset($dsn['new_link'])
+                && ($dsn['new_link'] == 'true' || $dsn['new_link'] === true))
+            {
+                $connect_function = 'oci_new_connect';
+            } else {
+                $connect_function = $persistent ? 'oci_pconnect'
+                                    : 'oci_connect';
+            }
+
+            // Backwards compatibility with DB < 1.7.0
+            if (empty($dsn['database']) && !empty($dsn['hostspec'])) {
+                $db = $dsn['hostspec'];
+            } else {
+                $db = $dsn['database'];
+            }
+
+            $char = empty($dsn['charset']) ? null : $dsn['charset'];
+            $this->connection = @$connect_function($dsn['username'],
+                                                   $dsn['password'],
+                                                   $db,
+                                                   $char);
+            $error = OCIError();
+            if (!empty($error) && $error['code'] == 12541) {
+                // Couldn't find TNS listener.  Try direct connection.
+                $this->connection = @$connect_function($dsn['username'],
+                                                       $dsn['password'],
+                                                       null,
+                                                       $char);
+            }
+        } else {
+            $connect_function = $persistent ? 'OCIPLogon' : 'OCILogon';
+            if ($dsn['hostspec']) {
+                $this->connection = @$connect_function($dsn['username'],
+                                                       $dsn['password'],
+                                                       $dsn['hostspec']);
+            } elseif ($dsn['username'] || $dsn['password']) {
+                $this->connection = @$connect_function($dsn['username'],
+                                                       $dsn['password']);
+            }
+        }
+
+        if (!$this->connection) {
+            $error = OCIError();
+            $error = (is_array($error)) ? $error['message'] : null;
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     $error);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        if (function_exists('oci_close')) {
+            $ret = @oci_close($this->connection);
+        } else {
+            $ret = @OCILogOff($this->connection);
+        }
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * To determine how many rows of a result set get buffered using
+     * ocisetprefetch(), see the "result_buffering" option in setOptions().
+     * This option was added in Release 1.7.0.
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $this->_data = array();
+        $this->last_parameters = array();
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        $result = @OCIParse($this->connection, $query);
+        if (!$result) {
+            return $this->oci8RaiseError();
+        }
+        if ($this->autocommit) {
+            $success = @OCIExecute($result,OCI_COMMIT_ON_SUCCESS);
+        } else {
+            $success = @OCIExecute($result,OCI_DEFAULT);
+        }
+        if (!$success) {
+            return $this->oci8RaiseError($result);
+        }
+        $this->last_stmt = $result;
+        if (DB::isManip($query)) {
+            return DB_OK;
+        } else {
+            @ocisetprefetch($result, $this->options['result_buffering']);
+            return $result;
+        }
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal oracle result pointer to the next available result
+     *
+     * @param a valid oci8 result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $moredata = @OCIFetchInto($result,$arr,OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE &&
+                $moredata)
+            {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $moredata = OCIFetchInto($result,$arr,OCI_RETURN_NULLS+OCI_RETURN_LOBS);
+        }
+        if (!$moredata) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @OCIFreeStatement($result);
+    }
+
+    /**
+     * Frees the internal resources associated with a prepared query
+     *
+     * @param resource $stmt           the prepared statement's resource
+     * @param bool     $free_resource  should the PHP resource be freed too?
+     *                                  Use false if you need to get data
+     *                                  from the result set later.
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_oci8::prepare()
+     */
+    function freePrepared($stmt, $free_resource = true)
+    {
+        if (!is_resource($stmt)) {
+            return false;
+        }
+        if ($free_resource) {
+            @ocifreestatement($stmt);
+        }
+        if (isset($this->prepare_types[(int)$stmt])) {
+            unset($this->prepare_types[(int)$stmt]);
+            unset($this->manip_query[(int)$stmt]);
+        } else {
+            return false;
+        }
+        return true;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * Only works if the DB_PORTABILITY_NUMROWS portability option
+     * is turned on.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows(), DB_common::setOption()
+     */
+    function numRows($result)
+    {
+        // emulate numRows for Oracle.  yuck.
+        if ($this->options['portability'] & DB_PORTABILITY_NUMROWS &&
+            $result === $this->last_stmt)
+        {
+            $countquery = 'SELECT COUNT(*) FROM ('.$this->last_query.')';
+            $save_query = $this->last_query;
+            $save_stmt = $this->last_stmt;
+
+            if (count($this->_data)) {
+                $smt = $this->prepare('SELECT COUNT(*) FROM ('.$this->last_query.')');
+                $count = $this->execute($smt, $this->_data);
+            } else {
+                $count =& $this->query($countquery);
+            }
+
+            if (DB::isError($count) ||
+                DB::isError($row = $count->fetchRow(DB_FETCHMODE_ORDERED)))
+            {
+                $this->last_query = $save_query;
+                $this->last_stmt = $save_stmt;
+                return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+            }
+            return $row[0];
+        }
+        return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @OCINumCols($result);
+        if (!$cols) {
+            return $this->oci8RaiseError($result);
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ prepare()
+
+    /**
+     * Prepares a query for multiple execution with execute().
+     *
+     * With oci8, this is emulated.
+     *
+     * prepare() requires a generic query as string like <code>
+     *    INSERT INTO numbers VALUES (?, ?, ?)
+     * </code>.  The <kbd>?</kbd> characters are placeholders.
+     *
+     * Three types of placeholders can be used:
+     *   + <kbd>?</kbd>  a quoted scalar value, i.e. strings, integers
+     *   + <kbd>!</kbd>  value is inserted 'as is'
+     *   + <kbd>&</kbd>  requires a file name.  The file's contents get
+     *                     inserted into the query (i.e. saving binary
+     *                     data in a db)
+     *
+     * Use backslashes to escape placeholder characters if you don't want
+     * them to be interpreted as placeholders.  Example: <code>
+     *    "UPDATE foo SET col=? WHERE col='over \& under'"
+     * </code>
+     *
+     * @param string $query  the query to be prepared
+     *
+     * @return mixed  DB statement resource on success. DB_Error on failure.
+     *
+     * @see DB_oci8::execute()
+     */
+    function prepare($query)
+    {
+        $tokens   = preg_split('/((?<!\\\)[&?!])/', $query, -1,
+                               PREG_SPLIT_DELIM_CAPTURE);
+        $binds    = count($tokens) - 1;
+        $token    = 0;
+        $types    = array();
+        $newquery = '';
+
+        foreach ($tokens as $key => $val) {
+            switch ($val) {
+                case '?':
+                    $types[$token++] = DB_PARAM_SCALAR;
+                    unset($tokens[$key]);
+                    break;
+                case '&':
+                    $types[$token++] = DB_PARAM_OPAQUE;
+                    unset($tokens[$key]);
+                    break;
+                case '!':
+                    $types[$token++] = DB_PARAM_MISC;
+                    unset($tokens[$key]);
+                    break;
+                default:
+                    $tokens[$key] = preg_replace('/\\\([&?!])/', "\\1", $val);
+                    if ($key != $binds) {
+                        $newquery .= $tokens[$key] . ':bind' . $token;
+                    } else {
+                        $newquery .= $tokens[$key];
+                    }
+            }
+        }
+
+        $this->last_query = $query;
+        $newquery = $this->modifyQuery($newquery);
+        if (!$stmt = @OCIParse($this->connection, $newquery)) {
+            return $this->oci8RaiseError();
+        }
+        $this->prepare_types[(int)$stmt] = $types;
+        $this->manip_query[(int)$stmt] = DB::isManip($query);
+        return $stmt;
+    }
+
+    // }}}
+    // {{{ execute()
+
+    /**
+     * Executes a DB statement prepared with prepare().
+     *
+     * To determine how many rows of a result set get buffered using
+     * ocisetprefetch(), see the "result_buffering" option in setOptions().
+     * This option was added in Release 1.7.0.
+     *
+     * @param resource  $stmt  a DB statement resource returned from prepare()
+     * @param mixed  $data  array, string or numeric data to be used in
+     *                      execution of the statement.  Quantity of items
+     *                      passed must match quantity of placeholders in
+     *                      query:  meaning 1 for non-array items or the
+     *                      quantity of elements in the array.
+     *
+     * @return mixed  returns an oic8 result resource for successful SELECT
+     *                queries, DB_OK for other successful queries.
+     *                A DB error object is returned on failure.
+     *
+     * @see DB_oci8::prepare()
+     */
+    function &execute($stmt, $data = array())
+    {
+        $data = (array)$data;
+        $this->last_parameters = $data;
+        $this->_data = $data;
+
+        $types =& $this->prepare_types[(int)$stmt];
+        if (count($types) != count($data)) {
+            $tmp =& $this->raiseError(DB_ERROR_MISMATCH);
+            return $tmp;
+        }
+
+        $i = 0;
+        foreach ($data as $key => $value) {
+            if ($types[$i] == DB_PARAM_MISC) {
+                /*
+                 * Oracle doesn't seem to have the ability to pass a
+                 * parameter along unchanged, so strip off quotes from start
+                 * and end, plus turn two single quotes to one single quote,
+                 * in order to avoid the quotes getting escaped by
+                 * Oracle and ending up in the database.
+                 */
+                $data[$key] = preg_replace("/^'(.*)'$/", "\\1", $data[$key]);
+                $data[$key] = str_replace("''", "'", $data[$key]);
+            } elseif ($types[$i] == DB_PARAM_OPAQUE) {
+                $fp = @fopen($data[$key], 'rb');
+                if (!$fp) {
+                    $tmp =& $this->raiseError(DB_ERROR_ACCESS_VIOLATION);
+                    return $tmp;
+                }
+                $data[$key] = fread($fp, filesize($data[$key]));
+                fclose($fp);
+            }
+            if (!@OCIBindByName($stmt, ':bind' . $i, $data[$key], -1)) {
+                $tmp = $this->oci8RaiseError($stmt);
+                return $tmp;
+            }
+            $i++;
+        }
+        if ($this->autocommit) {
+            $success = @OCIExecute($stmt, OCI_COMMIT_ON_SUCCESS);
+        } else {
+            $success = @OCIExecute($stmt, OCI_DEFAULT);
+        }
+        if (!$success) {
+            $tmp = $this->oci8RaiseError($stmt);
+            return $tmp;
+        }
+        $this->last_stmt = $stmt;
+        if ($this->manip_query[(int)$stmt]) {
+            $tmp = DB_OK;
+        } else {
+            @ocisetprefetch($stmt, $this->options['result_buffering']);
+            $tmp =& new DB_result($this, $stmt);
+        }
+        return $tmp;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        $this->autocommit = (bool)$onoff;;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        $result = @OCICommit($this->connection);
+        if (!$result) {
+            return $this->oci8RaiseError();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        $result = @OCIRollback($this->connection);
+        if (!$result) {
+            return $this->oci8RaiseError();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if ($this->last_stmt === false) {
+            return $this->oci8RaiseError();
+        }
+        $result = @OCIRowCount($this->last_stmt);
+        if ($result === false) {
+            return $this->oci8RaiseError($this->last_stmt);
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ modifyQuery()
+
+    /**
+     * Changes a query string for various DBMS specific reasons
+     *
+     * "SELECT 2+2" must be "SELECT 2+2 FROM dual" in Oracle.
+     *
+     * @param string $query  the query string to modify
+     *
+     * @return string  the modified query string
+     *
+     * @access protected
+     */
+    function modifyQuery($query)
+    {
+        if (preg_match('/^\s*SELECT/i', $query) &&
+            !preg_match('/\sFROM\s/i', $query)) {
+            $query .= ' FROM dual';
+        }
+        return $query;
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        // Let Oracle return the name of the columns instead of
+        // coding a "home" SQL parser
+
+        if (count($params)) {
+            $result = $this->prepare("SELECT * FROM ($query) "
+                                     . 'WHERE NULL = NULL');
+            $tmp =& $this->execute($result, $params);
+        } else {
+            $q_fields = "SELECT * FROM ($query) WHERE NULL = NULL";
+
+            if (!$result = @OCIParse($this->connection, $q_fields)) {
+                $this->last_query = $q_fields;
+                return $this->oci8RaiseError();
+            }
+            if (!@OCIExecute($result, OCI_DEFAULT)) {
+                $this->last_query = $q_fields;
+                return $this->oci8RaiseError($result);
+            }
+        }
+
+        $ncols = OCINumCols($result);
+        $cols  = array();
+        for ( $i = 1; $i <= $ncols; $i++ ) {
+            $cols[] = '"' . OCIColumnName($result, $i) . '"';
+        }
+        $fields = implode(', ', $cols);
+        // XXX Test that (tip by John Lim)
+        //if (preg_match('/^\s*SELECT\s+/is', $query, $match)) {
+        //    // Introduce the FIRST_ROWS Oracle query optimizer
+        //    $query = substr($query, strlen($match[0]), strlen($query));
+        //    $query = "SELECT /* +FIRST_ROWS */ " . $query;
+        //}
+
+        // Construct the query
+        // more at: http://marc.theaimsgroup.com/?l=php-db&m=99831958101212&w=2
+        // Perhaps this could be optimized with the use of Unions
+        $query = "SELECT $fields FROM".
+                 "  (SELECT rownum as linenum, $fields FROM".
+                 "      ($query)".
+                 '  WHERE rownum <= '. ($from + $count) .
+                 ') WHERE linenum >= ' . ++$from;
+        return $query;
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_oci8::createSequence(), DB_oci8::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $repeat = 0;
+        do {
+            $this->expectError(DB_ERROR_NOSUCHTABLE);
+            $result =& $this->query("SELECT ${seqname}.nextval FROM dual");
+            $this->popExpect();
+            if ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
+                $repeat = 1;
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } else {
+                $repeat = 0;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        return $arr[0];
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_oci8::nextID(), DB_oci8::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        return $this->query('CREATE SEQUENCE '
+                            . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_oci8::nextID(), DB_oci8::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP SEQUENCE '
+                            . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ oci8RaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_oci8::errorNative(), DB_oci8::errorCode()
+     */
+    function oci8RaiseError($errno = null)
+    {
+        if ($errno === null) {
+            $error = @OCIError($this->connection);
+            return $this->raiseError($this->errorCode($error['code']),
+                                     null, null, null, $error['message']);
+        } elseif (is_resource($errno)) {
+            $error = @OCIError($errno);
+            return $this->raiseError($this->errorCode($error['code']),
+                                     null, null, null, $error['message']);
+        }
+        return $this->raiseError($this->errorCode($errno));
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code produced by the last query
+     *
+     * @return int  the DBMS' error code.  FALSE if the code could not be
+     *               determined
+     */
+    function errorNative()
+    {
+        if (is_resource($this->last_stmt)) {
+            $error = @OCIError($this->last_stmt);
+        } else {
+            $error = @OCIError($this->connection);
+        }
+        if (is_array($error)) {
+            return $error['code'];
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * NOTE: flags won't contain index information.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $res = array();
+
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $result = strtoupper($result);
+            $q_fields = 'SELECT column_name, data_type, data_length, '
+                        . 'nullable '
+                        . 'FROM user_tab_columns '
+                        . "WHERE table_name='$result' ORDER BY column_id";
+
+            $this->last_query = $q_fields;
+
+            if (!$stmt = @OCIParse($this->connection, $q_fields)) {
+                return $this->oci8RaiseError(DB_ERROR_NEED_MORE_DATA);
+            }
+            if (!@OCIExecute($stmt, OCI_DEFAULT)) {
+                return $this->oci8RaiseError($stmt);
+            }
+
+            $i = 0;
+            while (@OCIFetch($stmt)) {
+                $res[$i] = array(
+                    'table' => $case_func($result),
+                    'name'  => $case_func(@OCIResult($stmt, 1)),
+                    'type'  => @OCIResult($stmt, 2),
+                    'len'   => @OCIResult($stmt, 3),
+                    'flags' => (@OCIResult($stmt, 4) == 'N') ? 'not_null' : '',
+                );
+                if ($mode & DB_TABLEINFO_ORDER) {
+                    $res['order'][$res[$i]['name']] = $i;
+                }
+                if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                    $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+                }
+                $i++;
+            }
+
+            if ($mode) {
+                $res['num_fields'] = $i;
+            }
+            @OCIFreeStatement($stmt);
+
+        } else {
+            if (isset($result->result)) {
+                /*
+                 * Probably received a result object.
+                 * Extract the result resource identifier.
+                 */
+                $result = $result->result;
+            }
+
+            $res = array();
+
+            if ($result === $this->last_stmt) {
+                $count = @OCINumCols($result);
+                if ($mode) {
+                    $res['num_fields'] = $count;
+                }
+                for ($i = 0; $i < $count; $i++) {
+                    $res[$i] = array(
+                        'table' => '',
+                        'name'  => $case_func(@OCIColumnName($result, $i+1)),
+                        'type'  => @OCIColumnType($result, $i+1),
+                        'len'   => @OCIColumnSize($result, $i+1),
+                        'flags' => '',
+                    );
+                    if ($mode & DB_TABLEINFO_ORDER) {
+                        $res['order'][$res[$i]['name']] = $i;
+                    }
+                    if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                        $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+                    }
+                }
+            } else {
+                return $this->raiseError(DB_ERROR_NOT_CAPABLE);
+            }
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SELECT table_name FROM user_tables';
+            case 'synonyms':
+                return 'SELECT synonym_name FROM user_synonyms';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/odbc.php b/program/lib/DB/odbc.php
new file mode 100644
index 000000000..c920d7a63
--- /dev/null
+++ b/program/lib/DB/odbc.php
@@ -0,0 +1,883 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's odbc extension
+ * for interacting with databases via ODBC connections
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's odbc extension
+ * for interacting with databases via ODBC connections
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * More info on ODBC errors could be found here:
+ * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/trblsql/tr_err_odbc_5stz.asp
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_odbc extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'odbc';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'sql92';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * NOTE: The feature set of the following drivers are different than
+     * the default:
+     *   + solid: 'transactions' = true
+     *   + navision: 'limit' = false
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'emulate',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => false,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+        '01004' => DB_ERROR_TRUNCATED,
+        '07001' => DB_ERROR_MISMATCH,
+        '21S01' => DB_ERROR_VALUE_COUNT_ON_ROW,
+        '21S02' => DB_ERROR_MISMATCH,
+        '22001' => DB_ERROR_INVALID,
+        '22003' => DB_ERROR_INVALID_NUMBER,
+        '22005' => DB_ERROR_INVALID_NUMBER,
+        '22008' => DB_ERROR_INVALID_DATE,
+        '22012' => DB_ERROR_DIVZERO,
+        '23000' => DB_ERROR_CONSTRAINT,
+        '23502' => DB_ERROR_CONSTRAINT_NOT_NULL,
+        '23503' => DB_ERROR_CONSTRAINT,
+        '23504' => DB_ERROR_CONSTRAINT,
+        '23505' => DB_ERROR_CONSTRAINT,
+        '24000' => DB_ERROR_INVALID,
+        '34000' => DB_ERROR_INVALID,
+        '37000' => DB_ERROR_SYNTAX,
+        '42000' => DB_ERROR_SYNTAX,
+        '42601' => DB_ERROR_SYNTAX,
+        'IM001' => DB_ERROR_UNSUPPORTED,
+        'S0000' => DB_ERROR_NOSUCHTABLE,
+        'S0001' => DB_ERROR_ALREADY_EXISTS,
+        'S0002' => DB_ERROR_NOSUCHTABLE,
+        'S0011' => DB_ERROR_ALREADY_EXISTS,
+        'S0012' => DB_ERROR_NOT_FOUND,
+        'S0021' => DB_ERROR_ALREADY_EXISTS,
+        'S0022' => DB_ERROR_NOSUCHFIELD,
+        'S1009' => DB_ERROR_INVALID,
+        'S1090' => DB_ERROR_INVALID,
+        'S1C00' => DB_ERROR_NOT_CAPABLE,
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * The number of rows affected by a data manipulation query
+     * @var integer
+     * @access private
+     */
+    var $affected = 0;
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_odbc()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's odbc driver supports the following extra DSN options:
+     *   + cursor  The type of cursor to be used for this connection.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('odbc')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+        switch ($this->dbsyntax) {
+            case 'access':
+            case 'db2':
+            case 'solid':
+                $this->features['transactions'] = true;
+                break;
+            case 'navision':
+                $this->features['limit'] = false;
+        }
+
+        /*
+         * This is hear for backwards compatibility. Should have been using
+         * 'database' all along, but prior to 1.6.0RC3 'hostspec' was used.
+         */
+        if ($dsn['database']) {
+            $odbcdsn = $dsn['database'];
+        } elseif ($dsn['hostspec']) {
+            $odbcdsn = $dsn['hostspec'];
+        } else {
+            $odbcdsn = 'localhost';
+        }
+
+        $connect_function = $persistent ? 'odbc_pconnect' : 'odbc_connect';
+
+        if (empty($dsn['cursor'])) {
+            $this->connection = @$connect_function($odbcdsn, $dsn['username'],
+                                                   $dsn['password']);
+        } else {
+            $this->connection = @$connect_function($odbcdsn, $dsn['username'],
+                                                   $dsn['password'],
+                                                   $dsn['cursor']);
+        }
+
+        if (!is_resource($this->connection)) {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     $this->errorNative());
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $err = @odbc_close($this->connection);
+        $this->connection = null;
+        return $err;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        $result = @odbc_exec($this->connection, $query);
+        if (!$result) {
+            return $this->odbcRaiseError(); // XXX ERRORMSG
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        if (DB::isManip($query)) {
+            $this->affected = $result; // For affectedRows()
+            return DB_OK;
+        }
+        $this->affected = 0;
+        return $result;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal odbc result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return @odbc_next_result($result);
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        $arr = array();
+        if ($rownum !== null) {
+            $rownum++; // ODBC first row is 1
+            if (version_compare(phpversion(), '4.2.0', 'ge')) {
+                $cols = @odbc_fetch_into($result, $arr, $rownum);
+            } else {
+                $cols = @odbc_fetch_into($result, $rownum, $arr);
+            }
+        } else {
+            $cols = @odbc_fetch_into($result, $arr);
+        }
+        if (!$cols) {
+            return null;
+        }
+        if ($fetchmode !== DB_FETCHMODE_ORDERED) {
+            for ($i = 0; $i < count($arr); $i++) {
+                $colName = @odbc_field_name($result, $i+1);
+                $a[$colName] = $arr[$i];
+            }
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+                $a = array_change_key_case($a, CASE_LOWER);
+            }
+            $arr = $a;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @odbc_free_result($result);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @odbc_num_fields($result);
+        if (!$cols) {
+            return $this->odbcRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (empty($this->affected)) {  // In case of SELECT stms
+            return 0;
+        }
+        $nrows = @odbc_num_rows($this->affected);
+        if ($nrows == -1) {
+            return $this->odbcRaiseError();
+        }
+        return $nrows;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * Not all ODBC drivers support this functionality.  If they don't
+     * a DB_Error object for DB_ERROR_UNSUPPORTED is returned.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $nrows = @odbc_num_rows($result);
+        if ($nrows == -1) {
+            return $this->odbcRaiseError(DB_ERROR_UNSUPPORTED);
+        }
+        if ($nrows === false) {
+            return $this->odbcRaiseError();
+        }
+        return $nrows;
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * Quotes a string so it can be safely used as a table or column name
+     *
+     * Use 'mssql' as the dbsyntax in the DB DSN only if you've unchecked
+     * "Use ANSI quoted identifiers" when setting up the ODBC data source.
+     *
+     * @param string $str  identifier name to be quoted
+     *
+     * @return string  quoted identifier string
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteIdentifier($str)
+    {
+        switch ($this->dsn['dbsyntax']) {
+            case 'access':
+                return '[' . $str . ']';
+            case 'mssql':
+            case 'sybase':
+                return '[' . str_replace(']', ']]', $str) . ']';
+            case 'mysql':
+            case 'mysqli':
+                return '`' . $str . '`';
+            default:
+                return '"' . str_replace('"', '""', $str) . '"';
+        }
+    }
+
+    // }}}
+    // {{{ quote()
+
+    /**
+     * @deprecated  Deprecated in release 1.6.0
+     * @internal
+     */
+    function quote($str)
+    {
+        return $this->quoteSmart($str);
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_odbc::createSequence(), DB_odbc::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $repeat = 0;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("update ${seqname} set id = id + 1");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
+                $repeat = 1;
+                $this->pushErrorHandling(PEAR_ERROR_RETURN);
+                $result = $this->createSequence($seq_name);
+                $this->popErrorHandling();
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+                $result = $this->query("insert into ${seqname} (id) values(0)");
+            } else {
+                $repeat = 0;
+            }
+        } while ($repeat);
+
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+
+        $result = $this->query("select id from ${seqname}");
+        if (DB::isError($result)) {
+            return $result;
+        }
+
+        $row = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        if (DB::isError($row || !$row)) {
+            return $row;
+        }
+
+        return $row[0];
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_odbc::nextID(), DB_odbc::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        return $this->query('CREATE TABLE '
+                            . $this->getSequenceName($seq_name)
+                            . ' (id integer NOT NULL,'
+                            . ' PRIMARY KEY(id))');
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_odbc::nextID(), DB_odbc::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        if (!@odbc_autocommit($this->connection, $onoff)) {
+            return $this->odbcRaiseError();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if (!@odbc_commit($this->connection)) {
+            return $this->odbcRaiseError();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if (!@odbc_rollback($this->connection)) {
+            return $this->odbcRaiseError();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ odbcRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_odbc::errorNative(), DB_common::errorCode()
+     */
+    function odbcRaiseError($errno = null)
+    {
+        if ($errno === null) {
+            switch ($this->dbsyntax) {
+                case 'access':
+                    if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
+                        $this->errorcode_map['07001'] = DB_ERROR_NOSUCHFIELD;
+                    } else {
+                        // Doing this in case mode changes during runtime.
+                        $this->errorcode_map['07001'] = DB_ERROR_MISMATCH;
+                    }
+
+                    $native_code = odbc_error($this->connection);
+
+                    // S1000 is for "General Error."  Let's be more specific.
+                    if ($native_code == 'S1000') {
+                        $errormsg = odbc_errormsg($this->connection);
+                        static $error_regexps;
+                        if (!isset($error_regexps)) {
+                            $error_regexps = array(
+                                '/includes related records.$/i'  => DB_ERROR_CONSTRAINT,
+                                '/cannot contain a Null value/i' => DB_ERROR_CONSTRAINT_NOT_NULL,
+                            );
+                        }
+                        foreach ($error_regexps as $regexp => $code) {
+                            if (preg_match($regexp, $errormsg)) {
+                                return $this->raiseError($code,
+                                        null, null, null,
+                                        $native_code . ' ' . $errormsg);
+                            }
+                        }
+                        $errno = DB_ERROR;
+                    } else {
+                        $errno = $this->errorCode($native_code);
+                    }
+                    break;
+                default:
+                    $errno = $this->errorCode(odbc_error($this->connection));
+            }
+        }
+        return $this->raiseError($errno, null, null, null,
+                                 $this->errorNative());
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error code and message produced by the last query
+     *
+     * @return string  the DBMS' error code and message
+     */
+    function errorNative()
+    {
+        if (!is_resource($this->connection)) {
+            return @odbc_error() . ' ' . @odbc_errormsg();
+        }
+        return @odbc_error($this->connection) . ' ' . @odbc_errormsg($this->connection);
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     * @since Method available since Release 1.7.0
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @odbc_exec($this->connection, "SELECT * FROM $result");
+            if (!$id) {
+                return $this->odbcRaiseError();
+            }
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->odbcRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @odbc_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $col = $i + 1;
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func(@odbc_field_name($id, $col)),
+                'type'  => @odbc_field_type($id, $col),
+                'len'   => @odbc_field_len($id, $col),
+                'flags' => '',
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @odbc_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * Thanks to symbol1@gmail.com and Philippe.Jausions@11abacus.com.
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the list of objects requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     * @since Method available since Release 1.7.0
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'databases':
+                if (!function_exists('odbc_data_source')) {
+                    return null;
+                }
+                $res = @odbc_data_source($this->connection, SQL_FETCH_FIRST);
+                if (is_array($res)) {
+                    $out = array($res['server']);
+                    while($res = @odbc_data_source($this->connection,
+                                                   SQL_FETCH_NEXT))
+                    {
+                        $out[] = $res['server'];
+                    }
+                    return $out;
+                } else {
+                    return $this->odbcRaiseError();
+                }
+                break;
+            case 'tables':
+            case 'schema.tables':
+                $keep = 'TABLE';
+                break;
+            case 'views':
+                $keep = 'VIEW';
+                break;
+            default:
+                return null;
+        }
+
+        /*
+         * Removing non-conforming items in the while loop rather than
+         * in the odbc_tables() call because some backends choke on this:
+         *     odbc_tables($this->connection, '', '', '', 'TABLE')
+         */
+        $res  = @odbc_tables($this->connection);
+        if (!$res) {
+            return $this->odbcRaiseError();
+        }
+        $out = array();
+        while ($row = odbc_fetch_array($res)) {
+            if ($row['TABLE_TYPE'] != $keep) {
+                continue;
+            }
+            if ($type == 'schema.tables') {
+                $out[] = $row['TABLE_SCHEM'] . '.' . $row['TABLE_NAME'];
+            } else {
+                $out[] = $row['TABLE_NAME'];
+            }
+        }
+        return $out;
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/pgsql.php b/program/lib/DB/pgsql.php
new file mode 100644
index 000000000..ae229afa1
--- /dev/null
+++ b/program/lib/DB/pgsql.php
@@ -0,0 +1,1097 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's pgsql extension
+ * for interacting with PostgreSQL databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Rui Hirokawa <hirokawa@php.net>
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's pgsql extension
+ * for interacting with PostgreSQL databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Rui Hirokawa <hirokawa@php.net>
+ * @author     Stig Bakken <ssb@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_pgsql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'pgsql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'pgsql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => '4.3.0',
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => true,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The number of rows affected by a data manipulation query
+     * @var integer
+     */
+    var $affected = 0;
+
+    /**
+     * The current row being looked at in fetchInto()
+     * @var array
+     * @access private
+     */
+    var $row = array();
+
+    /**
+     * The number of rows in a given result set
+     * @var array
+     * @access private
+     */
+    var $_num_rows = array();
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_pgsql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's pgsql driver supports the following extra DSN options:
+     *   + connect_timeout  How many seconds to wait for a connection to
+     *                       be established.  Available since PEAR DB 1.7.0.
+     *   + new_link         If set to true, causes subsequent calls to
+     *                       connect() to return a new connection link
+     *                       instead of the existing one.  WARNING: this is
+     *                       not portable to other DBMS's.  Available only
+     *                       if PHP is >= 4.3.0 and PEAR DB is >= 1.7.0.
+     *   + options          Command line options to be sent to the server.
+     *                       Available since PEAR DB 1.6.4.
+     *   + service          Specifies a service name in pg_service.conf that
+     *                       holds additional connection parameters.
+     *                       Available since PEAR DB 1.7.0.
+     *   + sslmode          How should SSL be used when connecting?  Values:
+     *                       disable, allow, prefer or require.
+     *                       Available since PEAR DB 1.7.0.
+     *   + tty              This was used to specify where to send server
+     *                       debug output.  Available since PEAR DB 1.6.4.
+     *
+     * Example of connecting to a new link via a socket:
+     * <code>
+     * require_once 'DB.php';
+     * 
+     * $dsn = 'pgsql://user:pass@unix(/tmp)/dbname?new_link=true';
+     * $options = array(
+     *     'portability' => DB_PORTABILITY_ALL,
+     * );
+     * 
+     * $db =& DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     *
+     * @link http://www.postgresql.org/docs/current/static/libpq.html#LIBPQ-CONNECT
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('pgsql')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $protocol = $dsn['protocol'] ? $dsn['protocol'] : 'tcp';
+
+        $params = array('');
+        if ($protocol == 'tcp') {
+            if ($dsn['hostspec']) {
+                $params[0] .= 'host=' . $dsn['hostspec'];
+            }
+            if ($dsn['port']) {
+                $params[0] .= ' port=' . $dsn['port'];
+            }
+        } elseif ($protocol == 'unix') {
+            // Allow for pg socket in non-standard locations.
+            if ($dsn['socket']) {
+                $params[0] .= 'host=' . $dsn['socket'];
+            }
+            if ($dsn['port']) {
+                $params[0] .= ' port=' . $dsn['port'];
+            }
+        }
+        if ($dsn['database']) {
+            $params[0] .= ' dbname=\'' . addslashes($dsn['database']) . '\'';
+        }
+        if ($dsn['username']) {
+            $params[0] .= ' user=\'' . addslashes($dsn['username']) . '\'';
+        }
+        if ($dsn['password']) {
+            $params[0] .= ' password=\'' . addslashes($dsn['password']) . '\'';
+        }
+        if (!empty($dsn['options'])) {
+            $params[0] .= ' options=' . $dsn['options'];
+        }
+        if (!empty($dsn['tty'])) {
+            $params[0] .= ' tty=' . $dsn['tty'];
+        }
+        if (!empty($dsn['connect_timeout'])) {
+            $params[0] .= ' connect_timeout=' . $dsn['connect_timeout'];
+        }
+        if (!empty($dsn['sslmode'])) {
+            $params[0] .= ' sslmode=' . $dsn['sslmode'];
+        }
+        if (!empty($dsn['service'])) {
+            $params[0] .= ' service=' . $dsn['service'];
+        }
+
+        if (isset($dsn['new_link'])
+            && ($dsn['new_link'] == 'true' || $dsn['new_link'] === true))
+        {
+            if (version_compare(phpversion(), '4.3.0', '>=')) {
+                $params[] = PGSQL_CONNECT_FORCE_NEW;
+            }
+        }
+
+        $connect_function = $persistent ? 'pg_pconnect' : 'pg_connect';
+
+        $ini = ini_get('track_errors');
+        $php_errormsg = '';
+        if ($ini) {
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+        } else {
+            ini_set('track_errors', 1);
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+            ini_set('track_errors', $ini);
+        }
+
+        if (!$this->connection) {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     $php_errormsg);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @pg_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @pg_exec($this->connection, 'begin;');
+                if (!$result) {
+                    return $this->pgsqlRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        $result = @pg_exec($this->connection, $query);
+        if (!$result) {
+            return $this->pgsqlRaiseError();
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        if ($ismanip) {
+            $this->affected = @pg_affected_rows($result);
+            return DB_OK;
+        } elseif (preg_match('/^\s*\(*\s*(SELECT|EXPLAIN|SHOW)\s/si', $query)) {
+            /* PostgreSQL commands:
+               ABORT, ALTER, BEGIN, CLOSE, CLUSTER, COMMIT, COPY,
+               CREATE, DECLARE, DELETE, DROP TABLE, EXPLAIN, FETCH,
+               GRANT, INSERT, LISTEN, LOAD, LOCK, MOVE, NOTIFY, RESET,
+               REVOKE, ROLLBACK, SELECT, SELECT INTO, SET, SHOW,
+               UNLISTEN, UPDATE, VACUUM
+            */
+            $this->row[(int)$result] = 0; // reset the row counter.
+            $numrows = $this->numRows($result);
+            if (is_object($numrows)) {
+                return $numrows;
+            }
+            $this->_num_rows[(int)$result] = $numrows;
+            $this->affected = 0;
+            return $result;
+        } else {
+            $this->affected = 0;
+            return DB_OK;
+        }
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal pgsql result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        $result_int = (int)$result;
+        $rownum = ($rownum !== null) ? $rownum : $this->row[$result_int];
+        if ($rownum >= $this->_num_rows[$result_int]) {
+            return null;
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @pg_fetch_array($result, $rownum, PGSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @pg_fetch_row($result, $rownum);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        $this->row[$result_int] = ++$rownum;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        if (is_resource($result)) {
+            unset($this->row[(int)$result]);
+            unset($this->_num_rows[(int)$result]);
+            $this->affected = 0;
+            return @pg_freeresult($result);
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ quote()
+
+    /**
+     * @deprecated  Deprecated in release 1.6.0
+     * @internal
+     */
+    function quote($str)
+    {
+        return $this->quoteSmart($str);
+    }
+
+    // }}}
+    // {{{ quoteSmart()
+
+    /**
+     * Formats input so it can be safely used in a query
+     *
+     * @param mixed $in  the data to be formatted
+     *
+     * @return mixed  the formatted data.  The format depends on the input's
+     *                 PHP type:
+     *                 + null = the string <samp>NULL</samp>
+     *                 + boolean = string <samp>TRUE</samp> or <samp>FALSE</samp>
+     *                 + integer or double = the unquoted number
+     *                 + other (including strings and numeric strings) =
+     *                   the data escaped according to MySQL's settings
+     *                   then encapsulated between single quotes
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function quoteSmart($in)
+    {
+        if (is_int($in) || is_double($in)) {
+            return $in;
+        } elseif (is_bool($in)) {
+            return $in ? 'TRUE' : 'FALSE';
+        } elseif (is_null($in)) {
+            return 'NULL';
+        } else {
+            return "'" . $this->escapeSimple($in) . "'";
+        }
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * {@internal PostgreSQL treats a backslash as an escape character,
+     * so they are escaped as well.
+     *
+     * Not using pg_escape_string() yet because it requires PostgreSQL
+     * to be at version 7.2 or greater.}}
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.6.0
+     */
+    function escapeSimple($str)
+    {
+        return str_replace("'", "''", str_replace('\\', '\\\\', $str));
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @pg_numfields($result);
+        if (!$cols) {
+            return $this->pgsqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @pg_numrows($result);
+        if ($rows === null) {
+            return $this->pgsqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            // (disabled) hack to shut up error messages from libpq.a
+            //@fclose(@fopen("php://stderr", "w"));
+            $result = @pg_exec($this->connection, 'end;');
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->pgsqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            $result = @pg_exec($this->connection, 'abort;');
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->pgsqlRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        return $this->affected;
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_pgsql::createSequence(), DB_pgsql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $repeat = false;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result =& $this->query("SELECT NEXTVAL('${seqname}')");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
+                $repeat = true;
+                $this->pushErrorHandling(PEAR_ERROR_RETURN);
+                $result = $this->createSequence($seq_name);
+                $this->popErrorHandling();
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } else {
+                $repeat = false;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        $result->free();
+        return $arr[0];
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_pgsql::nextID(), DB_pgsql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $result = $this->query("CREATE SEQUENCE ${seqname}");
+        return $result;
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_pgsql::nextID(), DB_pgsql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP SEQUENCE '
+                            . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        return "$query LIMIT $count OFFSET $from";
+    }
+
+    // }}}
+    // {{{ pgsqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_pgsql::errorNative(), DB_pgsql::errorCode()
+     */
+    function pgsqlRaiseError($errno = null)
+    {
+        $native = $this->errorNative();
+        if ($errno === null) {
+            $errno = $this->errorCode($native);
+        }
+        return $this->raiseError($errno, null, null, null, $native);
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error message produced by the last query
+     *
+     * {@internal Error messages are used instead of error codes 
+     * in order to support older versions of PostgreSQL.}}
+     *
+     * @return string  the DBMS' error message
+     */
+    function errorNative()
+    {
+        return @pg_errormessage($this->connection);
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from the database's text error message.
+     *
+     * @param  string  $errormsg  error message returned from the database
+     * @return integer  an error number from a DB error constant
+     */
+    function errorCode($errormsg)
+    {
+        static $error_regexps;
+        if (!isset($error_regexps)) {
+            $error_regexps = array(
+                '/(relation|sequence|table).*does not exist|class .* not found/i'
+                    => DB_ERROR_NOSUCHTABLE,
+                '/index .* does not exist/'
+                    => DB_ERROR_NOT_FOUND,
+                '/column .* does not exist/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/relation .* already exists/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/(divide|division) by zero$/i'
+                    => DB_ERROR_DIVZERO,
+                '/pg_atoi: error in .*: can\'t parse /i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/invalid input syntax for( type)? (integer|numeric)/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/value .* is out of range for type \w*int/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/integer out of range/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/value too long for type character/i'
+                    => DB_ERROR_INVALID,
+                '/attribute .* not found|relation .* does not have attribute/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/column .* specified in USING clause does not exist in (left|right) table/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/parser: parse error at or near/i'
+                    => DB_ERROR_SYNTAX,
+                '/syntax error at/'
+                    => DB_ERROR_SYNTAX,
+                '/column reference .* is ambiguous/i'
+                    => DB_ERROR_SYNTAX,
+                '/permission denied/'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/violates not-null constraint/'
+                    => DB_ERROR_CONSTRAINT_NOT_NULL,
+                '/violates [\w ]+ constraint/'
+                    => DB_ERROR_CONSTRAINT,
+                '/referential integrity violation/'
+                    => DB_ERROR_CONSTRAINT,
+                '/more expressions than target columns/i'
+                    => DB_ERROR_VALUE_COUNT_ON_ROW,
+            );
+        }
+        foreach ($error_regexps as $regexp => $code) {
+            if (preg_match($regexp, $errormsg)) {
+                return $code;
+            }
+        }
+        // Fall back to DB_ERROR if there was no mapping.
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @pg_exec($this->connection, "SELECT * FROM $result LIMIT 0");
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->pgsqlRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @pg_numfields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $res[$i] = array(
+                'table' => $got_string ? $case_func($result) : '',
+                'name'  => $case_func(@pg_fieldname($id, $i)),
+                'type'  => @pg_fieldtype($id, $i),
+                'len'   => @pg_fieldsize($id, $i),
+                'flags' => $got_string
+                           ? $this->_pgFieldFlags($id, $i, $result)
+                           : '',
+            );
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @pg_freeresult($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ _pgFieldFlags()
+
+    /**
+     * Get a column's flags
+     *
+     * Supports "not_null", "default_value", "primary_key", "unique_key"
+     * and "multiple_key".  The default value is passed through
+     * rawurlencode() in case there are spaces in it.
+     *
+     * @param int $resource   the PostgreSQL result identifier
+     * @param int $num_field  the field number
+     *
+     * @return string  the flags
+     *
+     * @access private
+     */
+    function _pgFieldFlags($resource, $num_field, $table_name)
+    {
+        $field_name = @pg_fieldname($resource, $num_field);
+
+        $result = @pg_exec($this->connection, "SELECT f.attnotnull, f.atthasdef
+                                FROM pg_attribute f, pg_class tab, pg_type typ
+                                WHERE tab.relname = typ.typname
+                                AND typ.typrelid = f.attrelid
+                                AND f.attname = '$field_name'
+                                AND tab.relname = '$table_name'");
+        if (@pg_numrows($result) > 0) {
+            $row = @pg_fetch_row($result, 0);
+            $flags  = ($row[0] == 't') ? 'not_null ' : '';
+
+            if ($row[1] == 't') {
+                $result = @pg_exec($this->connection, "SELECT a.adsrc
+                                    FROM pg_attribute f, pg_class tab, pg_type typ, pg_attrdef a
+                                    WHERE tab.relname = typ.typname AND typ.typrelid = f.attrelid
+                                    AND f.attrelid = a.adrelid AND f.attname = '$field_name'
+                                    AND tab.relname = '$table_name' AND f.attnum = a.adnum");
+                $row = @pg_fetch_row($result, 0);
+                $num = preg_replace("/'(.*)'::\w+/", "\\1", $row[0]);
+                $flags .= 'default_' . rawurlencode($num) . ' ';
+            }
+        } else {
+            $flags = '';
+        }
+        $result = @pg_exec($this->connection, "SELECT i.indisunique, i.indisprimary, i.indkey
+                                FROM pg_attribute f, pg_class tab, pg_type typ, pg_index i
+                                WHERE tab.relname = typ.typname
+                                AND typ.typrelid = f.attrelid
+                                AND f.attrelid = i.indrelid
+                                AND f.attname = '$field_name'
+                                AND tab.relname = '$table_name'");
+        $count = @pg_numrows($result);
+
+        for ($i = 0; $i < $count ; $i++) {
+            $row = @pg_fetch_row($result, $i);
+            $keys = explode(' ', $row[2]);
+
+            if (in_array($num_field + 1, $keys)) {
+                $flags .= ($row[0] == 't' && $row[1] == 'f') ? 'unique_key ' : '';
+                $flags .= ($row[1] == 't') ? 'primary_key ' : '';
+                if (count($keys) > 1)
+                    $flags .= 'multiple_key ';
+            }
+        }
+
+        return trim($flags);
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return 'SELECT c.relname AS "Name"'
+                        . ' FROM pg_class c, pg_user u'
+                        . ' WHERE c.relowner = u.usesysid'
+                        . " AND c.relkind = 'r'"
+                        . ' AND NOT EXISTS'
+                        . ' (SELECT 1 FROM pg_views'
+                        . '  WHERE viewname = c.relname)'
+                        . " AND c.relname !~ '^(pg_|sql_)'"
+                        . ' UNION'
+                        . ' SELECT c.relname AS "Name"'
+                        . ' FROM pg_class c'
+                        . " WHERE c.relkind = 'r'"
+                        . ' AND NOT EXISTS'
+                        . ' (SELECT 1 FROM pg_views'
+                        . '  WHERE viewname = c.relname)'
+                        . ' AND NOT EXISTS'
+                        . ' (SELECT 1 FROM pg_user'
+                        . '  WHERE usesysid = c.relowner)'
+                        . " AND c.relname !~ '^pg_'";
+            case 'schema.tables':
+                return "SELECT schemaname || '.' || tablename"
+                        . ' AS "Name"'
+                        . ' FROM pg_catalog.pg_tables'
+                        . ' WHERE schemaname NOT IN'
+                        . " ('pg_catalog', 'information_schema', 'pg_toast')";
+            case 'views':
+                // Table cols: viewname | viewowner | definition
+                return 'SELECT viewname from pg_views WHERE schemaname'
+                        . " NOT IN ('information_schema', 'pg_catalog')";
+            case 'users':
+                // cols: usename |usesysid|usecreatedb|usetrace|usesuper|usecatupd|passwd  |valuntil
+                return 'SELECT usename FROM pg_user';
+            case 'databases':
+                return 'SELECT datname FROM pg_database';
+            case 'functions':
+            case 'procedures':
+                return 'SELECT proname FROM pg_proc WHERE proowner <> 1';
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/sqlite.php b/program/lib/DB/sqlite.php
new file mode 100644
index 000000000..42f599e5d
--- /dev/null
+++ b/program/lib/DB/sqlite.php
@@ -0,0 +1,942 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's sqlite extension
+ * for interacting with SQLite databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Urs Gehrig <urs@circle.ch>
+ * @author     Mika Tuupola <tuupola@appelsiini.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's sqlite extension
+ * for interacting with SQLite databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * NOTICE:  This driver needs PHP's track_errors ini setting to be on.
+ * It is automatically turned on when connecting to the database.
+ * Make sure your scripts don't turn it off.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Urs Gehrig <urs@circle.ch>
+ * @author     Mika Tuupola <tuupola@appelsiini.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_sqlite extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'sqlite';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'sqlite';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'alter',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => false,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     *
+     * {@internal  Error codes according to sqlite_exec.  See the online
+     * manual at http://sqlite.org/c_interface.html for info.
+     * This error handling based on sqlite_exec is not yet implemented.}}
+     *
+     * @var array
+     */
+    var $errorcode_map = array(
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * SQLite data types
+     *
+     * @link http://www.sqlite.org/datatypes.html
+     *
+     * @var array
+     */
+    var $keywords = array (
+        'BLOB'      => '',
+        'BOOLEAN'   => '',
+        'CHARACTER' => '',
+        'CLOB'      => '',
+        'FLOAT'     => '',
+        'INTEGER'   => '',
+        'KEY'       => '',
+        'NATIONAL'  => '',
+        'NUMERIC'   => '',
+        'NVARCHAR'  => '',
+        'PRIMARY'   => '',
+        'TEXT'      => '',
+        'TIMESTAMP' => '',
+        'UNIQUE'    => '',
+        'VARCHAR'   => '',
+        'VARYING'   => '',
+    );
+
+    /**
+     * The most recent error message from $php_errormsg
+     * @var string
+     * @access private
+     */
+    var $_lasterror = '';
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_sqlite()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's sqlite driver supports the following extra DSN options:
+     *   + mode  The permissions for the database file, in four digit
+     *            chmod octal format (eg "0600").
+     *
+     * Example of connecting to a database in read-only mode:
+     * <code>
+     * require_once 'DB.php';
+     * 
+     * $dsn = 'sqlite:///path/and/name/of/db/file?mode=0400';
+     * $options = array(
+     *     'portability' => DB_PORTABILITY_ALL,
+     * );
+     * 
+     * $db =& DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('sqlite')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        if ($dsn['database']) {
+            if (!file_exists($dsn['database'])) {
+                if (!touch($dsn['database'])) {
+                    return $this->sqliteRaiseError(DB_ERROR_NOT_FOUND);
+                }
+                if (!isset($dsn['mode']) ||
+                    !is_numeric($dsn['mode']))
+                {
+                    $mode = 0644;
+                } else {
+                    $mode = octdec($dsn['mode']);
+                }
+                if (!chmod($dsn['database'], $mode)) {
+                    return $this->sqliteRaiseError(DB_ERROR_NOT_FOUND);
+                }
+                if (!file_exists($dsn['database'])) {
+                    return $this->sqliteRaiseError(DB_ERROR_NOT_FOUND);
+                }
+            }
+            if (!is_file($dsn['database'])) {
+                return $this->sqliteRaiseError(DB_ERROR_INVALID);
+            }
+            if (!is_readable($dsn['database'])) {
+                return $this->sqliteRaiseError(DB_ERROR_ACCESS_VIOLATION);
+            }
+        } else {
+            return $this->sqliteRaiseError(DB_ERROR_ACCESS_VIOLATION);
+        }
+
+        $connect_function = $persistent ? 'sqlite_popen' : 'sqlite_open';
+
+        // track_errors must remain on for simpleQuery()
+        ini_set('track_errors', 1);
+        $php_errormsg = '';
+
+        if (!$this->connection = @$connect_function($dsn['database'])) {
+            return $this->raiseError(DB_ERROR_NODBSELECTED,
+                                     null, null, null,
+                                     $php_errormsg);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @sqlite_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * NOTICE:  This method needs PHP's track_errors ini setting to be on.
+     * It is automatically turned on when connecting to the database.
+     * Make sure your scripts don't turn it off.
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+
+        $php_errormsg = '';
+
+        $result = @sqlite_query($query, $this->connection);
+        $this->_lasterror = $php_errormsg ? $php_errormsg : '';
+
+        $this->result = $result;
+        if (!$this->result) {
+            return $this->sqliteRaiseError(null);
+        }
+
+        // sqlite_query() seems to allways return a resource
+        // so cant use that. Using $ismanip instead
+        if (!$ismanip) {
+            $numRows = $this->numRows($result);
+            if (is_object($numRows)) {
+                // we've got PEAR_Error
+                return $numRows;
+            }
+            return $result;
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal sqlite result pointer to the next available result
+     *
+     * @param resource $result  the valid sqlite result resource
+     *
+     * @return bool  true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@sqlite_seek($this->result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @sqlite_fetch_array($result, SQLITE_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @sqlite_fetch_array($result, SQLITE_NUM);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            /*
+             * Even though this DBMS already trims output, we do this because
+             * a field might have intentional whitespace at the end that
+             * gets removed by DB_PORTABILITY_RTRIM under another driver.
+             */
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult(&$result)
+    {
+        // XXX No native free?
+        if (!is_resource($result)) {
+            return false;
+        }
+        $result = null;
+        return true;
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @sqlite_num_fields($result);
+        if (!$cols) {
+            return $this->sqliteRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @sqlite_num_rows($result);
+        if ($rows === null) {
+            return $this->sqliteRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ affected()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        return @sqlite_changes($this->connection);
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_sqlite::nextID(), DB_sqlite::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_sqlite::nextID(), DB_sqlite::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $query   = 'CREATE TABLE ' . $seqname .
+                   ' (id INTEGER UNSIGNED PRIMARY KEY) ';
+        $result  = $this->query($query);
+        if (DB::isError($result)) {
+            return($result);
+        }
+        $query   = "CREATE TRIGGER ${seqname}_cleanup AFTER INSERT ON $seqname
+                    BEGIN
+                        DELETE FROM $seqname WHERE id<LAST_INSERT_ROWID();
+                    END ";
+        $result  = $this->query($query);
+        if (DB::isError($result)) {
+            return($result);
+        }
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_sqlite::createSequence(), DB_sqlite::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+
+        do {
+            $repeat = 0;
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("INSERT INTO $seqname (id) VALUES (NULL)");
+            $this->popErrorHandling();
+            if ($result === DB_OK) {
+                $id = @sqlite_last_insert_rowid($this->connection);
+                if ($id != 0) {
+                    return $id;
+                }
+            } elseif ($ondemand && DB::isError($result) &&
+                      $result->getCode() == DB_ERROR_NOSUCHTABLE)
+            {
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                } else {
+                    $repeat = 1;
+                }
+            }
+        } while ($repeat);
+
+        return $this->raiseError($result);
+    }
+
+    // }}}
+    // {{{ getDbFileStats()
+
+    /**
+     * Get the file stats for the current database
+     *
+     * Possible arguments are dev, ino, mode, nlink, uid, gid, rdev, size,
+     * atime, mtime, ctime, blksize, blocks or a numeric key between
+     * 0 and 12.
+     *
+     * @param string $arg  the array key for stats()
+     *
+     * @return mixed  an array on an unspecified key, integer on a passed
+     *                arg and false at a stats error
+     */
+    function getDbFileStats($arg = '')
+    {
+        $stats = stat($this->dsn['database']);
+        if ($stats == false) {
+            return false;
+        }
+        if (is_array($stats)) {
+            if (is_numeric($arg)) {
+                if (((int)$arg <= 12) & ((int)$arg >= 0)) {
+                    return false;
+                }
+                return $stats[$arg ];
+            }
+            if (array_key_exists(trim($arg), $stats)) {
+                return $stats[$arg ];
+            }
+        }
+        return $stats;
+    }
+
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * In SQLite, this makes things safe for inserts/updates, but may
+     * cause problems when performing text comparisons against columns
+     * containing binary data. See the
+     * {@link http://php.net/sqlite_escape_string PHP manual} for more info.
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @since Method available since Release 1.6.1
+     * @see DB_common::escapeSimple()
+     */
+    function escapeSimple($str)
+    {
+        return @sqlite_escape_string($str);
+    }
+
+    // }}}
+    // {{{ modifyLimitQuery()
+
+    /**
+     * Adds LIMIT clauses to a query string according to current DBMS standards
+     *
+     * @param string $query   the query to modify
+     * @param int    $from    the row to start to fetching (0 = the first row)
+     * @param int    $count   the numbers of rows to fetch
+     * @param mixed  $params  array, string or numeric data to be used in
+     *                         execution of the statement.  Quantity of items
+     *                         passed must match quantity of placeholders in
+     *                         query:  meaning 1 placeholder for non-array
+     *                         parameters or 1 placeholder per array element.
+     *
+     * @return string  the query string with LIMIT clauses added
+     *
+     * @access protected
+     */
+    function modifyLimitQuery($query, $from, $count, $params = array())
+    {
+        return "$query LIMIT $count OFFSET $from";
+    }
+
+    // }}}
+    // {{{ modifyQuery()
+
+    /**
+     * Changes a query string for various DBMS specific reasons
+     *
+     * This little hack lets you know how many rows were deleted
+     * when running a "DELETE FROM table" query.  Only implemented
+     * if the DB_PORTABILITY_DELETE_COUNT portability option is on.
+     *
+     * @param string $query  the query string to modify
+     *
+     * @return string  the modified query string
+     *
+     * @access protected
+     * @see DB_common::setOption()
+     */
+    function modifyQuery($query)
+    {
+        if ($this->options['portability'] & DB_PORTABILITY_DELETE_COUNT) {
+            if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
+                $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
+                                      'DELETE FROM \1 WHERE 1=1', $query);
+            }
+        }
+        return $query;
+    }
+
+    // }}}
+    // {{{ sqliteRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_sqlite::errorNative(), DB_sqlite::errorCode()
+     */
+    function sqliteRaiseError($errno = null)
+    {
+        $native = $this->errorNative();
+        if ($errno === null) {
+            $errno = $this->errorCode($native);
+        }
+
+        $errorcode = @sqlite_last_error($this->connection);
+        $userinfo = "$errorcode ** $this->last_query";
+
+        return $this->raiseError($errno, null, null, $userinfo, $native);
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error message produced by the last query
+     *
+     * {@internal This is used to retrieve more meaningfull error messages
+     * because sqlite_last_error() does not provide adequate info.}}
+     *
+     * @return string  the DBMS' error message
+     */
+    function errorNative()
+    {
+        return $this->_lasterror;
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from the database's text error message
+     *
+     * @param string $errormsg  the error message returned from the database
+     *
+     * @return integer  the DB error number
+     */
+    function errorCode($errormsg)
+    {
+        static $error_regexps;
+        if (!isset($error_regexps)) {
+            $error_regexps = array(
+                '/^no such table:/' => DB_ERROR_NOSUCHTABLE,
+                '/^no such index:/' => DB_ERROR_NOT_FOUND,
+                '/^(table|index) .* already exists$/' => DB_ERROR_ALREADY_EXISTS,
+                '/PRIMARY KEY must be unique/i' => DB_ERROR_CONSTRAINT,
+                '/is not unique/' => DB_ERROR_CONSTRAINT,
+                '/columns .* are not unique/i' => DB_ERROR_CONSTRAINT,
+                '/uniqueness constraint failed/' => DB_ERROR_CONSTRAINT,
+                '/may not be NULL/' => DB_ERROR_CONSTRAINT_NOT_NULL,
+                '/^no such column:/' => DB_ERROR_NOSUCHFIELD,
+                '/column not present in both tables/i' => DB_ERROR_NOSUCHFIELD,
+                '/^near ".*": syntax error$/' => DB_ERROR_SYNTAX,
+                '/[0-9]+ values for [0-9]+ columns/i' => DB_ERROR_VALUE_COUNT_ON_ROW,
+            );
+        }
+        foreach ($error_regexps as $regexp => $code) {
+            if (preg_match($regexp, $errormsg)) {
+                return $code;
+            }
+        }
+        // Fall back to DB_ERROR if there was no mapping.
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table
+     *
+     * @param string         $result  a string containing the name of a table
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     * @since Method available since Release 1.7.0
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @sqlite_array_query($this->connection,
+                                      "PRAGMA table_info('$result');",
+                                      SQLITE_ASSOC);
+            $got_string = true;
+        } else {
+            $this->last_query = '';
+            return $this->raiseError(DB_ERROR_NOT_CAPABLE, null, null, null,
+                                     'This DBMS can not obtain tableInfo' .
+                                     ' from result sets');
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = count($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            if (strpos($id[$i]['type'], '(') !== false) {
+                $bits = explode('(', $id[$i]['type']);
+                $type = $bits[0];
+                $len  = rtrim($bits[1],')');
+            } else {
+                $type = $id[$i]['type'];
+                $len  = 0;
+            }
+
+            $flags = '';
+            if ($id[$i]['pk']) {
+                $flags .= 'primary_key ';
+            }
+            if ($id[$i]['notnull']) {
+                $flags .= 'not_null ';
+            }
+            if ($id[$i]['dflt_value'] !== null) {
+                $flags .= 'default_' . rawurlencode($id[$i]['dflt_value']);
+            }
+            $flags = trim($flags);
+
+            $res[$i] = array(
+                'table' => $case_func($result),
+                'name'  => $case_func($id[$i]['name']),
+                'type'  => $type,
+                'len'   => $len,
+                'flags' => $flags,
+            );
+
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     * @param array  $args  SQLITE DRIVER ONLY: a private array of arguments
+     *                       used by the getSpecialQuery().  Do not use
+     *                       this directly.
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type, $args = array())
+    {
+        if (!is_array($args)) {
+            return $this->raiseError('no key specified', null, null, null,
+                                     'Argument has to be an array.');
+        }
+
+        switch ($type) {
+            case 'master':
+                return 'SELECT * FROM sqlite_master;';
+            case 'tables':
+                return "SELECT name FROM sqlite_master WHERE type='table' "
+                       . 'UNION ALL SELECT name FROM sqlite_temp_master '
+                       . "WHERE type='table' ORDER BY name;";
+            case 'schema':
+                return 'SELECT sql FROM (SELECT * FROM sqlite_master '
+                       . 'UNION ALL SELECT * FROM sqlite_temp_master) '
+                       . "WHERE type!='meta' "
+                       . 'ORDER BY tbl_name, type DESC, name;';
+            case 'schemax':
+            case 'schema_x':
+                /*
+                 * Use like:
+                 * $res = $db->query($db->getSpecialQuery('schema_x',
+                 *                   array('table' => 'table3')));
+                 */
+                return 'SELECT sql FROM (SELECT * FROM sqlite_master '
+                       . 'UNION ALL SELECT * FROM sqlite_temp_master) '
+                       . "WHERE tbl_name LIKE '{$args['table']}' "
+                       . "AND type!='meta' "
+                       . 'ORDER BY type DESC, name;';
+            case 'alter':
+                /*
+                 * SQLite does not support ALTER TABLE; this is a helper query
+                 * to handle this. 'table' represents the table name, 'rows'
+                 * the news rows to create, 'save' the row(s) to keep _with_
+                 * the data.
+                 *
+                 * Use like:
+                 * $args = array(
+                 *     'table' => $table,
+                 *     'rows'  => "id INTEGER PRIMARY KEY, firstname TEXT, surname TEXT, datetime TEXT",
+                 *     'save'  => "NULL, titel, content, datetime"
+                 * );
+                 * $res = $db->query( $db->getSpecialQuery('alter', $args));
+                 */
+                $rows = strtr($args['rows'], $this->keywords);
+
+                $q = array(
+                    'BEGIN TRANSACTION',
+                    "CREATE TEMPORARY TABLE {$args['table']}_backup ({$args['rows']})",
+                    "INSERT INTO {$args['table']}_backup SELECT {$args['save']} FROM {$args['table']}",
+                    "DROP TABLE {$args['table']}",
+                    "CREATE TABLE {$args['table']} ({$args['rows']})",
+                    "INSERT INTO {$args['table']} SELECT {$rows} FROM {$args['table']}_backup",
+                    "DROP TABLE {$args['table']}_backup",
+                    'COMMIT',
+                );
+
+                /*
+                 * This is a dirty hack, since the above query will not get
+                 * executed with a single query call so here the query method
+                 * will be called directly and return a select instead.
+                 */
+                foreach ($q as $query) {
+                    $this->query($query);
+                }
+                return "SELECT * FROM {$args['table']};";
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/storage.php b/program/lib/DB/storage.php
new file mode 100644
index 000000000..17bffd155
--- /dev/null
+++ b/program/lib/DB/storage.php
@@ -0,0 +1,504 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Provides an object interface to a table row
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <stig@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB class so it can be extended from
+ */
+require_once 'DB.php';
+
+/**
+ * Provides an object interface to a table row
+ *
+ * It lets you add, delete and change rows using objects rather than SQL
+ * statements.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Stig Bakken <stig@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_storage extends PEAR
+{
+    // {{{ properties
+
+    /** the name of the table (or view, if the backend database supports
+        updates in views) we hold data from */
+    var $_table = null;
+
+    /** which column(s) in the table contains primary keys, can be a
+        string for single-column primary keys, or an array of strings
+        for multiple-column primary keys */
+    var $_keycolumn = null;
+
+    /** DB connection handle used for all transactions */
+    var $_dbh = null;
+
+    /** an assoc with the names of database fields stored as properties
+        in this object */
+    var $_properties = array();
+
+    /** an assoc with the names of the properties in this object that
+        have been changed since they were fetched from the database */
+    var $_changes = array();
+
+    /** flag that decides if data in this object can be changed.
+        objects that don't have their table's key column in their
+        property lists will be flagged as read-only. */
+    var $_readonly = false;
+
+    /** function or method that implements a validator for fields that
+        are set, this validator function returns true if the field is
+        valid, false if not */
+    var $_validator = null;
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * Constructor
+     *
+     * @param $table string the name of the database table
+     *
+     * @param $keycolumn mixed string with name of key column, or array of
+     * strings if the table has a primary key of more than one column
+     *
+     * @param $dbh object database connection object
+     *
+     * @param $validator mixed function or method used to validate
+     * each new value, called with three parameters: the name of the
+     * field/column that is changing, a reference to the new value and
+     * a reference to this object
+     *
+     */
+    function DB_storage($table, $keycolumn, &$dbh, $validator = null)
+    {
+        $this->PEAR('DB_Error');
+        $this->_table = $table;
+        $this->_keycolumn = $keycolumn;
+        $this->_dbh = $dbh;
+        $this->_readonly = false;
+        $this->_validator = $validator;
+    }
+
+    // }}}
+    // {{{ _makeWhere()
+
+    /**
+     * Utility method to build a "WHERE" clause to locate ourselves in
+     * the table.
+     *
+     * XXX future improvement: use rowids?
+     *
+     * @access private
+     */
+    function _makeWhere($keyval = null)
+    {
+        if (is_array($this->_keycolumn)) {
+            if ($keyval === null) {
+                for ($i = 0; $i < sizeof($this->_keycolumn); $i++) {
+                    $keyval[] = $this->{$this->_keycolumn[$i]};
+                }
+            }
+            $whereclause = '';
+            for ($i = 0; $i < sizeof($this->_keycolumn); $i++) {
+                if ($i > 0) {
+                    $whereclause .= ' AND ';
+                }
+                $whereclause .= $this->_keycolumn[$i];
+                if (is_null($keyval[$i])) {
+                    // there's not much point in having a NULL key,
+                    // but we support it anyway
+                    $whereclause .= ' IS NULL';
+                } else {
+                    $whereclause .= ' = ' . $this->_dbh->quote($keyval[$i]);
+                }
+            }
+        } else {
+            if ($keyval === null) {
+                $keyval = @$this->{$this->_keycolumn};
+            }
+            $whereclause = $this->_keycolumn;
+            if (is_null($keyval)) {
+                // there's not much point in having a NULL key,
+                // but we support it anyway
+                $whereclause .= ' IS NULL';
+            } else {
+                $whereclause .= ' = ' . $this->_dbh->quote($keyval);
+            }
+        }
+        return $whereclause;
+    }
+
+    // }}}
+    // {{{ setup()
+
+    /**
+     * Method used to initialize a DB_storage object from the
+     * configured table.
+     *
+     * @param $keyval mixed the key[s] of the row to fetch (string or array)
+     *
+     * @return int DB_OK on success, a DB error if not
+     */
+    function setup($keyval)
+    {
+        $whereclause = $this->_makeWhere($keyval);
+        $query = 'SELECT * FROM ' . $this->_table . ' WHERE ' . $whereclause;
+        $sth = $this->_dbh->query($query);
+        if (DB::isError($sth)) {
+            return $sth;
+        }
+        $row = $sth->fetchRow(DB_FETCHMODE_ASSOC);
+        if (DB::isError($row)) {
+            return $row;
+        }
+        if (!$row) {
+            return $this->raiseError(null, DB_ERROR_NOT_FOUND, null, null,
+                                     $query, null, true);
+        }
+        foreach ($row as $key => $value) {
+            $this->_properties[$key] = true;
+            $this->$key = $value;
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ insert()
+
+    /**
+     * Create a new (empty) row in the configured table for this
+     * object.
+     */
+    function insert($newpk)
+    {
+        if (is_array($this->_keycolumn)) {
+            $primarykey = $this->_keycolumn;
+        } else {
+            $primarykey = array($this->_keycolumn);
+        }
+        settype($newpk, "array");
+        for ($i = 0; $i < sizeof($primarykey); $i++) {
+            $pkvals[] = $this->_dbh->quote($newpk[$i]);
+        }
+
+        $sth = $this->_dbh->query("INSERT INTO $this->_table (" .
+                                  implode(",", $primarykey) . ") VALUES(" .
+                                  implode(",", $pkvals) . ")");
+        if (DB::isError($sth)) {
+            return $sth;
+        }
+        if (sizeof($newpk) == 1) {
+            $newpk = $newpk[0];
+        }
+        $this->setup($newpk);
+    }
+
+    // }}}
+    // {{{ toString()
+
+    /**
+     * Output a simple description of this DB_storage object.
+     * @return string object description
+     */
+    function toString()
+    {
+        $info = strtolower(get_class($this));
+        $info .= " (table=";
+        $info .= $this->_table;
+        $info .= ", keycolumn=";
+        if (is_array($this->_keycolumn)) {
+            $info .= "(" . implode(",", $this->_keycolumn) . ")";
+        } else {
+            $info .= $this->_keycolumn;
+        }
+        $info .= ", dbh=";
+        if (is_object($this->_dbh)) {
+            $info .= $this->_dbh->toString();
+        } else {
+            $info .= "null";
+        }
+        $info .= ")";
+        if (sizeof($this->_properties)) {
+            $info .= " [loaded, key=";
+            $keyname = $this->_keycolumn;
+            if (is_array($keyname)) {
+                $info .= "(";
+                for ($i = 0; $i < sizeof($keyname); $i++) {
+                    if ($i > 0) {
+                        $info .= ",";
+                    }
+                    $info .= $this->$keyname[$i];
+                }
+                $info .= ")";
+            } else {
+                $info .= $this->$keyname;
+            }
+            $info .= "]";
+        }
+        if (sizeof($this->_changes)) {
+            $info .= " [modified]";
+        }
+        return $info;
+    }
+
+    // }}}
+    // {{{ dump()
+
+    /**
+     * Dump the contents of this object to "standard output".
+     */
+    function dump()
+    {
+        foreach ($this->_properties as $prop => $foo) {
+            print "$prop = ";
+            print htmlentities($this->$prop);
+            print "<br />\n";
+        }
+    }
+
+    // }}}
+    // {{{ &create()
+
+    /**
+     * Static method used to create new DB storage objects.
+     * @param $data assoc. array where the keys are the names
+     *              of properties/columns
+     * @return object a new instance of DB_storage or a subclass of it
+     */
+    function &create($table, &$data)
+    {
+        $classname = strtolower(get_class($this));
+        $obj =& new $classname($table);
+        foreach ($data as $name => $value) {
+            $obj->_properties[$name] = true;
+            $obj->$name = &$value;
+        }
+        return $obj;
+    }
+
+    // }}}
+    // {{{ loadFromQuery()
+
+    /**
+     * Loads data into this object from the given query.  If this
+     * object already contains table data, changes will be saved and
+     * the object re-initialized first.
+     *
+     * @param $query SQL query
+     *
+     * @param $params parameter list in case you want to use
+     * prepare/execute mode
+     *
+     * @return int DB_OK on success, DB_WARNING_READ_ONLY if the
+     * returned object is read-only (because the object's specified
+     * key column was not found among the columns returned by $query),
+     * or another DB error code in case of errors.
+     */
+// XXX commented out for now
+/*
+    function loadFromQuery($query, $params = null)
+    {
+        if (sizeof($this->_properties)) {
+            if (sizeof($this->_changes)) {
+                $this->store();
+                $this->_changes = array();
+            }
+            $this->_properties = array();
+        }
+        $rowdata = $this->_dbh->getRow($query, DB_FETCHMODE_ASSOC, $params);
+        if (DB::isError($rowdata)) {
+            return $rowdata;
+        }
+        reset($rowdata);
+        $found_keycolumn = false;
+        while (list($key, $value) = each($rowdata)) {
+            if ($key == $this->_keycolumn) {
+                $found_keycolumn = true;
+            }
+            $this->_properties[$key] = true;
+            $this->$key = &$value;
+            unset($value); // have to unset, or all properties will
+                           // refer to the same value
+        }
+        if (!$found_keycolumn) {
+            $this->_readonly = true;
+            return DB_WARNING_READ_ONLY;
+        }
+        return DB_OK;
+    }
+ */
+
+    // }}}
+    // {{{ set()
+
+    /**
+     * Modify an attriute value.
+     */
+    function set($property, $newvalue)
+    {
+        // only change if $property is known and object is not
+        // read-only
+        if ($this->_readonly) {
+            return $this->raiseError(null, DB_WARNING_READ_ONLY, null,
+                                     null, null, null, true);
+        }
+        if (@isset($this->_properties[$property])) {
+            if (empty($this->_validator)) {
+                $valid = true;
+            } else {
+                $valid = @call_user_func($this->_validator,
+                                         $this->_table,
+                                         $property,
+                                         $newvalue,
+                                         $this->$property,
+                                         $this);
+            }
+            if ($valid) {
+                $this->$property = $newvalue;
+                if (empty($this->_changes[$property])) {
+                    $this->_changes[$property] = 0;
+                } else {
+                    $this->_changes[$property]++;
+                }
+            } else {
+                return $this->raiseError(null, DB_ERROR_INVALID, null,
+                                         null, "invalid field: $property",
+                                         null, true);
+            }
+            return true;
+        }
+        return $this->raiseError(null, DB_ERROR_NOSUCHFIELD, null,
+                                 null, "unknown field: $property",
+                                 null, true);
+    }
+
+    // }}}
+    // {{{ &get()
+
+    /**
+     * Fetch an attribute value.
+     *
+     * @param string attribute name
+     *
+     * @return attribute contents, or null if the attribute name is
+     * unknown
+     */
+    function &get($property)
+    {
+        // only return if $property is known
+        if (isset($this->_properties[$property])) {
+            return $this->$property;
+        }
+        $tmp = null;
+        return $tmp;
+    }
+
+    // }}}
+    // {{{ _DB_storage()
+
+    /**
+     * Destructor, calls DB_storage::store() if there are changes
+     * that are to be kept.
+     */
+    function _DB_storage()
+    {
+        if (sizeof($this->_changes)) {
+            $this->store();
+        }
+        $this->_properties = array();
+        $this->_changes = array();
+        $this->_table = null;
+    }
+
+    // }}}
+    // {{{ store()
+
+    /**
+     * Stores changes to this object in the database.
+     *
+     * @return DB_OK or a DB error
+     */
+    function store()
+    {
+        foreach ($this->_changes as $name => $foo) {
+            $params[] = &$this->$name;
+            $vars[] = $name . ' = ?';
+        }
+        if ($vars) {
+            $query = 'UPDATE ' . $this->_table . ' SET ' .
+                implode(', ', $vars) . ' WHERE ' .
+                $this->_makeWhere();
+            $stmt = $this->_dbh->prepare($query);
+            $res = $this->_dbh->execute($stmt, $params);
+            if (DB::isError($res)) {
+                return $res;
+            }
+            $this->_changes = array();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ remove()
+
+    /**
+     * Remove the row represented by this object from the database.
+     *
+     * @return mixed DB_OK or a DB error
+     */
+    function remove()
+    {
+        if ($this->_readonly) {
+            return $this->raiseError(null, DB_WARNING_READ_ONLY, null,
+                                     null, null, null, true);
+        }
+        $query = 'DELETE FROM ' . $this->_table .' WHERE '.
+            $this->_makeWhere();
+        $res = $this->_dbh->query($query);
+        if (DB::isError($res)) {
+            return $res;
+        }
+        foreach ($this->_properties as $prop => $foo) {
+            unset($this->$prop);
+        }
+        $this->_properties = array();
+        $this->_changes = array();
+        return DB_OK;
+    }
+
+    // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
diff --git a/program/lib/DB/sybase.php b/program/lib/DB/sybase.php
new file mode 100644
index 000000000..893178213
--- /dev/null
+++ b/program/lib/DB/sybase.php
@@ -0,0 +1,907 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's sybase extension
+ * for interacting with Sybase databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Antônio Carlos Venâncio Júnior <floripa@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id$
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's sybase extension
+ * for interacting with Sybase databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * WARNING:  This driver may fail with multiple connections under the
+ * same user/pass/host and different databases.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Sterling Hughes <sterling@php.net>
+ * @author     Antônio Carlos Venâncio Júnior <floripa@php.net>
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2005 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: @package_version@
+ * @link       http://pear.php.net/package/DB
+ */
+class DB_sybase extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'sybase';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'sybase';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'emulate',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => true,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * Should data manipulation queries be committed automatically?
+     * @var bool
+     * @access private
+     */
+    var $autocommit = true;
+
+    /**
+     * The quantity of transactions begun
+     *
+     * {@internal  While this is private, it can't actually be designated
+     * private in PHP 5 because it is directly accessed in the test suite.}}
+     *
+     * @var integer
+     * @access private
+     */
+    var $transaction_opcount = 0;
+
+    /**
+     * The database specified in the DSN
+     *
+     * It's a fix to allow calls to different databases in the same script.
+     *
+     * @var string
+     * @access private
+     */
+    var $_db = '';
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_sybase()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * PEAR DB's sybase driver supports the following extra DSN options:
+     *   + appname       The application name to use on this connection.
+     *                   Available since PEAR DB 1.7.0.
+     *   + charset       The character set to use on this connection.
+     *                   Available since PEAR DB 1.7.0.
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('sybase') &&
+            !PEAR::loadExtension('sybase_ct'))
+        {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $dsn['hostspec'] = $dsn['hostspec'] ? $dsn['hostspec'] : 'localhost';
+        $dsn['password'] = !empty($dsn['password']) ? $dsn['password'] : false;
+        $dsn['charset'] = isset($dsn['charset']) ? $dsn['charset'] : false;
+        $dsn['appname'] = isset($dsn['appname']) ? $dsn['appname'] : false;
+
+        $connect_function = $persistent ? 'sybase_pconnect' : 'sybase_connect';
+
+        if ($dsn['username']) {
+            $this->connection = @$connect_function($dsn['hostspec'],
+                                                   $dsn['username'],
+                                                   $dsn['password'],
+                                                   $dsn['charset'],
+                                                   $dsn['appname']);
+        } else {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     'The DSN did not contain a username.');
+        }
+
+        if (!$this->connection) {
+            return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                     null, null, null,
+                                     @sybase_get_last_message());
+        }
+
+        if ($dsn['database']) {
+            if (!@sybase_select_db($dsn['database'], $this->connection)) {
+                return $this->raiseError(DB_ERROR_NODBSELECTED,
+                                         null, null, null,
+                                         @sybase_get_last_message());
+            }
+            $this->_db = $dsn['database'];
+        }
+
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @sybase_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $ismanip = DB::isManip($query);
+        $this->last_query = $query;
+        if (!@sybase_select_db($this->_db, $this->connection)) {
+            return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED);
+        }
+        $query = $this->modifyQuery($query);
+        if (!$this->autocommit && $ismanip) {
+            if ($this->transaction_opcount == 0) {
+                $result = @sybase_query('BEGIN TRANSACTION', $this->connection);
+                if (!$result) {
+                    return $this->sybaseRaiseError();
+                }
+            }
+            $this->transaction_opcount++;
+        }
+        $result = @sybase_query($query, $this->connection);
+        if (!$result) {
+            return $this->sybaseRaiseError();
+        }
+        if (is_resource($result)) {
+            return $result;
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        return $ismanip ? DB_OK : $result;
+    }
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal sybase result pointer to the next available result
+     *
+     * @param a valid sybase result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@sybase_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            if (function_exists('sybase_fetch_assoc')) {
+                $arr = @sybase_fetch_assoc($result);
+            } else {
+                if ($arr = @sybase_fetch_array($result)) {
+                    foreach ($arr as $key => $value) {
+                        if (is_int($key)) {
+                            unset($arr[$key]);
+                        }
+                    }
+                }
+            }
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @sybase_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return @sybase_free_result($result);
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @sybase_num_fields($result);
+        if (!$cols) {
+            return $this->sybaseRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @sybase_num_rows($result);
+        if ($rows === false) {
+            return $this->sybaseRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ affectedRows()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (DB::isManip($this->last_query)) {
+            $result = @sybase_affected_rows($this->connection);
+        } else {
+            $result = 0;
+        }
+        return $result;
+     }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_sybase::createSequence(), DB_sybase::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        if (!@sybase_select_db($this->_db, $this->connection)) {
+            return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED);
+        }
+        $repeat = 0;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("INSERT INTO $seqname (vapor) VALUES (0)");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                ($result->getCode() == DB_ERROR || $result->getCode() == DB_ERROR_NOSUCHTABLE))
+            {
+                $repeat = 1;
+                $result = $this->createSequence($seq_name);
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } elseif (!DB::isError($result)) {
+                $result =& $this->query("SELECT @@IDENTITY FROM $seqname");
+                $repeat = 0;
+            } else {
+                $repeat = false;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $result = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        return $result[0];
+    }
+
+    /**
+     * Creates a new sequence
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_sybase::nextID(), DB_sybase::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        return $this->query('CREATE TABLE '
+                            . $this->getSequenceName($seq_name)
+                            . ' (id numeric(10, 0) IDENTITY NOT NULL,'
+                            . ' vapor int NULL)');
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_sybase::nextID(), DB_sybase::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ autoCommit()
+
+    /**
+     * Enables or disables automatic commits
+     *
+     * @param bool $onoff  true turns it on, false turns it off
+     *
+     * @return int  DB_OK on success.  A DB_Error object if the driver
+     *               doesn't support auto-committing transactions.
+     */
+    function autoCommit($onoff = false)
+    {
+        // XXX if $this->transaction_opcount > 0, we should probably
+        // issue a warning here.
+        $this->autocommit = $onoff ? true : false;
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commits the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function commit()
+    {
+        if ($this->transaction_opcount > 0) {
+            if (!@sybase_select_db($this->_db, $this->connection)) {
+                return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $result = @sybase_query('COMMIT', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->sybaseRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Reverts the current transaction
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     */
+    function rollback()
+    {
+        if ($this->transaction_opcount > 0) {
+            if (!@sybase_select_db($this->_db, $this->connection)) {
+                return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $result = @sybase_query('ROLLBACK', $this->connection);
+            $this->transaction_opcount = 0;
+            if (!$result) {
+                return $this->sybaseRaiseError();
+            }
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ sybaseRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_sybase::errorNative(), DB_sybase::errorCode()
+     */
+    function sybaseRaiseError($errno = null)
+    {
+        $native = $this->errorNative();
+        if ($errno === null) {
+            $errno = $this->errorCode($native);
+        }
+        return $this->raiseError($errno, null, null, null, $native);
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error message produced by the last query
+     *
+     * @return string  the DBMS' error message
+     */
+    function errorNative()
+    {
+        return @sybase_get_last_message();
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from the database's text error message.
+     *
+     * @param  string  $errormsg  error message returned from the database
+     * @return integer  an error number from a DB error constant
+     */
+    function errorCode($errormsg)
+    {
+        static $error_regexps;
+        if (!isset($error_regexps)) {
+            $error_regexps = array(
+                '/Incorrect syntax near/'
+                    => DB_ERROR_SYNTAX,
+                '/^Unclosed quote before the character string [\"\'].*[\"\']\./'
+                    => DB_ERROR_SYNTAX,
+                '/Implicit conversion (from datatype|of NUMERIC value)/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/Cannot drop the table [\"\'].+[\"\'], because it doesn\'t exist in the system catalogs\./'
+                    => DB_ERROR_NOSUCHTABLE,
+                '/Only the owner of object [\"\'].+[\"\'] or a user with System Administrator \(SA\) role can run this command\./'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/^.+ permission denied on object .+, database .+, owner .+/'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/^.* permission denied, database .+, owner .+/'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/[^.*] not found\./'
+                    => DB_ERROR_NOSUCHTABLE,
+                '/There is already an object named/'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/Invalid column name/'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/does not allow null values/'
+                    => DB_ERROR_CONSTRAINT_NOT_NULL,
+                '/Command has been aborted/'
+                    => DB_ERROR_CONSTRAINT,
+                '/^Cannot drop the index .* because it doesn\'t exist/i'
+                    => DB_ERROR_NOT_FOUND,
+                '/^There is already an index/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/^There are fewer columns in the INSERT statement than values specified/i'
+                    => DB_ERROR_VALUE_COUNT_ON_ROW,
+            );
+        }
+
+        foreach ($error_regexps as $regexp => $code) {
+            if (preg_match($regexp, $errormsg)) {
+                return $code;
+            }
+        }
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::tableInfo()
+     * @since Method available since Release 1.6.0
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            if (!@sybase_select_db($this->_db, $this->connection)) {
+                return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED);
+            }
+            $id = @sybase_query("SELECT * FROM $result WHERE 1=0",
+                                $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->sybaseRaiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @sybase_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $f = @sybase_fetch_field($id, $i);
+            // column_source is often blank
+            $res[$i] = array(
+                'table' => $got_string
+                           ? $case_func($result)
+                           : $case_func($f->column_source),
+                'name'  => $case_func($f->name),
+                'type'  => $f->type,
+                'len'   => $f->max_length,
+                'flags' => '',
+            );
+            if ($res[$i]['table']) {
+                $res[$i]['flags'] = $this->_sybase_field_flags(
+                        $res[$i]['table'], $res[$i]['name']);
+            }
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @sybase_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ _sybase_field_flags()
+
+    /**
+     * Get the flags for a field
+     *
+     * Currently supports:
+     *  + <samp>unique_key</samp>    (unique index, unique check or primary_key)
+     *  + <samp>multiple_key</samp>  (multi-key index)
+     *
+     * @param string  $table   the table name
+     * @param string  $column  the field name
+     *
+     * @return string  space delimited string of flags.  Empty string if none.
+     *
+     * @access private
+     */
+    function _sybase_field_flags($table, $column)
+    {
+        static $tableName = null;
+        static $flags = array();
+
+        if ($table != $tableName) {
+            $flags = array();
+            $tableName = $table;
+
+            // get unique/primary keys
+            $res = $this->getAll("sp_helpindex $table", DB_FETCHMODE_ASSOC);
+
+            if (!isset($res[0]['index_description'])) {
+                return '';
+            }
+
+            foreach ($res as $val) {
+                $keys = explode(', ', trim($val['index_keys']));
+
+                if (sizeof($keys) > 1) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'multiple_key');
+                    }
+                }
+
+                if (strpos($val['index_description'], 'unique')) {
+                    foreach ($keys as $key) {
+                        $this->_add_flag($flags[$key], 'unique_key');
+                    }
+                }
+            }
+
+        }
+
+        if (array_key_exists($column, $flags)) {
+            return(implode(' ', $flags[$column]));
+        }
+
+        return '';
+    }
+
+    // }}}
+    // {{{ _add_flag()
+
+    /**
+     * Adds a string to the flags array if the flag is not yet in there
+     * - if there is no flag present the array is created
+     *
+     * @param array  $array  reference of flags array to add a value to
+     * @param mixed  $value  value to add to the flag array
+     *
+     * @return void
+     *
+     * @access private
+     */
+    function _add_flag(&$array, $value)
+    {
+        if (!is_array($array)) {
+            $array = array($value);
+        } elseif (!in_array($value, $array)) {
+            array_push($array, $value);
+        }
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtains the query string needed for listing a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return string  the SQL query string or null if the driver doesn't
+     *                  support the object type requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'tables':
+                return "SELECT name FROM sysobjects WHERE type = 'U'"
+                       . ' ORDER BY name';
+            case 'views':
+                return "SELECT name FROM sysobjects WHERE type = 'V'";
+            default:
+                return null;
+        }
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>