- Removed support for PEAR::DB driver

1 files changed, 0 insertions, 1082 deletions

diff --git a/program/lib/DB/ibase.php b/program/lib/DB/ibase.php
deleted file mode 100644
index 913fbf3eb..000000000
--- a/program/lib/DB/ibase.php
+++ /dev/null
@@ -1,1082 +0,0 @@
-<?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  1997-2007 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  1997-2007 The PHP Group
- * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
- * @version    Release: 1.7.13
- * @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,
-        // -902 =>  // Covers too many errors, need to use regex on msg
-        -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 = $this->_checkManip($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 is_resource($result) ? ibase_free_result($result) : false;
-    }
-
-    // }}}
-    // {{{ freeQuery()
-
-    function freeQuery($query)
-    {
-        return is_resource($query) ? ibase_free_query($query) : false;
-    }
-
-    // }}}
-    // {{{ affectedRows()
-
-    /**
-     * Determines the number of rows affected by a data maniuplation query
-     *
-     * 0 is returned for queries that don't manipulate data.
-     *
-     * @return int  the number of rows.  A DB_Error object on failure.
-     */
-    function affectedRows()
-    {
-        if (is_integer($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, $newquery);
-
-        if ($stmt === false) {
-            $stmt = $this->ibaseRaiseError();
-        } else {
-            $this->prepare_types[(int)$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] || $this->_next_query_manip) {
-            $this->_last_query_manip = true;
-            $this->_next_query_manip = false;
-            $tmp = DB_OK;
-        } else {
-            $this->_last_query_manip = false;
-            $tmp = new DB_result($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,
-                '/feature is not supported/i'
-                    => DB_ERROR_NOT_CAPABLE,
-            );
-        }
-
-        $errormsg = @ibase_errmsg();
-        foreach ($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:
- */
-
-?>