From d1403fd7268ccf96ab6e7d04506ea1b1802c7eb2 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Fri, 2 May 2008 07:35:00 +0000
Subject: - fixed #1485032 and updated MDB2 package+drivers

---
 program/lib/MDB2/Driver/Function/Common.php | 540 +++++++++++++++-------------
 program/lib/MDB2/Driver/Function/mssql.php  | 369 ++++++++++---------
 program/lib/MDB2/Driver/Function/mysql.php  | 254 +++++++------
 program/lib/MDB2/Driver/Function/mysqli.php | 270 +++++++-------
 program/lib/MDB2/Driver/Function/pgsql.php  | 214 ++++++-----
 program/lib/MDB2/Driver/Function/sqlite.php | 287 ++++++++-------
 6 files changed, 1039 insertions(+), 895 deletions(-)

(limited to 'program/lib/MDB2/Driver/Function')

diff --git a/program/lib/MDB2/Driver/Function/Common.php b/program/lib/MDB2/Driver/Function/Common.php
index 74971e2bb..d361b5586 100644
--- a/program/lib/MDB2/Driver/Function/Common.php
+++ b/program/lib/MDB2/Driver/Function/Common.php
@@ -1,249 +1,293 @@
-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
-// | Stig. S. Bakken, Lukas Smith                                         |
-// | All rights reserved.                                                 |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
-// | API as well as database abstraction for PHP applications.            |
-// | This LICENSE is in the BSD license style.                            |
-// |                                                                      |
-// | Redistribution and use in source and binary forms, with or without   |
-// | modification, are permitted provided that the following conditions   |
-// | are met:                                                             |
-// |                                                                      |
-// | Redistributions of source code must retain the above copyright       |
-// | notice, this list of conditions and the following disclaimer.        |
-// |                                                                      |
-// | Redistributions in binary form must reproduce the above copyright    |
-// | notice, this list of conditions and the following disclaimer in the  |
-// | documentation and/or other materials provided with the distribution. |
-// |                                                                      |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission.                                                  |
-// |                                                                      |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
-// | POSSIBILITY OF SUCH DAMAGE.                                          |
-// +----------------------------------------------------------------------+
-// | Author: Lukas Smith <smith@pooteeweet.org>                           |
-// +----------------------------------------------------------------------+
-//
-// $Id: Common.php,v 1.19 2007/09/09 13:47:36 quipo Exp $
-//
-
-/**
- * @package  MDB2
- * @category Database
- * @author   Lukas Smith <smith@pooteeweet.org>
- */
-
-/**
- * Base class for the function modules that is extended by each MDB2 driver
- *
- * To load this module in the MDB2 object:
- * $mdb->loadModule('Function');
- *
- * @package MDB2
- * @category Database
- * @author  Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Function_Common extends MDB2_Module_Common
-{
-    // {{{ executeStoredProc()
-
-    /**
-     * Execute a stored procedure and return any results
-     *
-     * @param string $name string that identifies the function to execute
-     * @param mixed  $params  array that contains the paramaters to pass the stored proc
-     * @param mixed   $types  array that contains the types of the columns in
-     *                        the result set
-     * @param mixed $result_class string which specifies which result class to use
-     * @param mixed $result_wrap_class string which specifies which class to wrap results in
-     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $error =& $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-        return $error;
-    }
-
-    // }}}
-    // {{{ functionTable()
-
-    /**
-     * return string for internal table used when calling only a function
-     *
-     * @return string for internal table used when calling only a function
-     * @access public
-     */
-    function functionTable()
-    {
-        return '';
-    }
-
-    // }}}
-    // {{{ now()
-
-    /**
-     * Return string to call a variable with the current timestamp inside an SQL statement
-     * There are three special variables for current date and time:
-     * - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
-     * - CURRENT_DATE (date, DATE type)
-     * - CURRENT_TIME (time, TIME type)
-     *
-     * @return string to call a variable with the current timestamp
-     * @access public
-     */
-    function now($type = 'timestamp')
-    {
-        switch ($type) {
-        case 'time':
-            return 'CURRENT_TIME';
-        case 'date':
-            return 'CURRENT_DATE';
-        case 'timestamp':
-        default:
-            return 'CURRENT_TIMESTAMP';
-        }
-    }
-
-    // }}}
-    // {{{ substring()
-
-    /**
-     * return string to call a function to get a substring inside an SQL statement
-     *
-     * @return string to call a function to get a substring
-     * @access public
-     */
-    function substring($value, $position = 1, $length = null)
-    {
-        if (!is_null($length)) {
-            return "SUBSTRING($value FROM $position FOR $length)";
-        }
-        return "SUBSTRING($value FROM $position)";
-    }
-
-    // }}}
-    // {{{ concat()
-
-    /**
-     * Returns string to concatenate two or more string parameters
-     *
-     * @param string $value1
-     * @param string $value2
-     * @param string $values...
-     * @return string to concatenate two strings
-     * @access public
-     */
-    function concat($value1, $value2)
-    {
-        $args = func_get_args();
-        return "(".implode(' || ', $args).")";
-    }
-
-    // }}}
-    // {{{ random()
-
-    /**
-     * return string to call a function to get random value inside an SQL statement
-     *
-     * @return return string to generate float between 0 and 1
-     * @access public
-     */
-    function random()
-    {
-        return 'RAND()';
-    }
-
-    // }}}
-    // {{{ lower()
-
-    /**
-     * return string to call a function to lower the case of an expression
-     *
-     * @param string $expression
-     * @return return string to lower case of an expression
-     * @access public
-     */
-    function lower($expression)
-    {
-        return "LOWER($expression)";
-    }
-
-    // }}}
-    // {{{ upper()
-
-    /**
-     * return string to call a function to upper the case of an expression
-     *
-     * @param string $expression
-     * @return return string to upper case of an expression
-     * @access public
-     */
-    function upper($expression)
-    {
-        return "UPPER($expression)";
-    }
-
-    // }}}
-    // {{{ length()
-
-    /**
-     * return string to call a function to get the length of a string expression
-     *
-     * @param string $expression
-     * @return return string to get the string expression length
-     * @access public
-     */
-    function length($expression)
-    {
-        return "LENGTH($expression)";
-    }
-
-    // }}}
-    // {{{ guid()
-
-    /**
-     * Returns global unique identifier
-     *
-     * @return string to get global unique identifier
-     * @access public
-     */
-    function guid()
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $error =& $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-        return $error;
-    }
-
-    // }}}
-}
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id: Common.php,v 1.21 2008/02/17 18:51:39 quipo Exp $
+//
+
+/**
+ * @package  MDB2
+ * @category Database
+ * @author   Lukas Smith <smith@pooteeweet.org>
+ */
+
+/**
+ * Base class for the function modules that is extended by each MDB2 driver
+ *
+ * To load this module in the MDB2 object:
+ * $mdb->loadModule('Function');
+ *
+ * @package  MDB2
+ * @category Database
+ * @author   Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Function_Common extends MDB2_Module_Common
+{
+    // {{{ executeStoredProc()
+
+    /**
+     * Execute a stored procedure and return any results
+     *
+     * @param string $name string that identifies the function to execute
+     * @param mixed  $params  array that contains the paramaters to pass the stored proc
+     * @param mixed   $types  array that contains the types of the columns in
+     *                        the result set
+     * @param mixed $result_class string which specifies which result class to use
+     * @param mixed $result_wrap_class string which specifies which class to wrap results in
+     *
+     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $error =& $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+        return $error;
+    }
+
+    // }}}
+    // {{{ functionTable()
+
+    /**
+     * return string for internal table used when calling only a function
+     *
+     * @return string for internal table used when calling only a function
+     * @access public
+     */
+    function functionTable()
+    {
+        return '';
+    }
+
+    // }}}
+    // {{{ now()
+
+    /**
+     * Return string to call a variable with the current timestamp inside an SQL statement
+     * There are three special variables for current date and time:
+     * - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
+     * - CURRENT_DATE (date, DATE type)
+     * - CURRENT_TIME (time, TIME type)
+     *
+     * @param string $type 'timestamp' | 'time' | 'date'
+     *
+     * @return string to call a variable with the current timestamp
+     * @access public
+     */
+    function now($type = 'timestamp')
+    {
+        switch ($type) {
+        case 'time':
+            return 'CURRENT_TIME';
+        case 'date':
+            return 'CURRENT_DATE';
+        case 'timestamp':
+        default:
+            return 'CURRENT_TIMESTAMP';
+        }
+    }
+
+    // }}}
+    // {{{ unixtimestamp()
+
+    /**
+     * return string to call a function to get the unix timestamp from a iso timestamp
+     *
+     * @param string $expression
+     *
+     * @return string to call a variable with the timestamp
+     * @access public
+     */
+    function unixtimestamp($expression)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $error =& $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+        return $error;
+    }
+
+    // }}}
+    // {{{ substring()
+
+    /**
+     * return string to call a function to get a substring inside an SQL statement
+     *
+     * @return string to call a function to get a substring
+     * @access public
+     */
+    function substring($value, $position = 1, $length = null)
+    {
+        if (!is_null($length)) {
+            return "SUBSTRING($value FROM $position FOR $length)";
+        }
+        return "SUBSTRING($value FROM $position)";
+    }
+
+    // }}}
+    // {{{ replace()
+
+    /**
+     * return string to call a function to get replace inside an SQL statement.
+     *
+     * @return string to call a function to get a replace
+     * @access public
+     */
+    function replace($str, $from_str, $to_str)
+    {
+        return "REPLACE($str, $from_str , $to_str)";
+    }
+
+    // }}}
+    // {{{ concat()
+
+    /**
+     * Returns string to concatenate two or more string parameters
+     *
+     * @param string $value1
+     * @param string $value2
+     * @param string $values...
+     *
+     * @return string to concatenate two strings
+     * @access public
+     */
+    function concat($value1, $value2)
+    {
+        $args = func_get_args();
+        return "(".implode(' || ', $args).")";
+    }
+
+    // }}}
+    // {{{ random()
+
+    /**
+     * return string to call a function to get random value inside an SQL statement
+     *
+     * @return return string to generate float between 0 and 1
+     * @access public
+     */
+    function random()
+    {
+        return 'RAND()';
+    }
+
+    // }}}
+    // {{{ lower()
+
+    /**
+     * return string to call a function to lower the case of an expression
+     *
+     * @param string $expression
+     *
+     * @return return string to lower case of an expression
+     * @access public
+     */
+    function lower($expression)
+    {
+        return "LOWER($expression)";
+    }
+
+    // }}}
+    // {{{ upper()
+
+    /**
+     * return string to call a function to upper the case of an expression
+     *
+     * @param string $expression
+     *
+     * @return return string to upper case of an expression
+     * @access public
+     */
+    function upper($expression)
+    {
+        return "UPPER($expression)";
+    }
+
+    // }}}
+    // {{{ length()
+
+    /**
+     * return string to call a function to get the length of a string expression
+     *
+     * @param string $expression
+     *
+     * @return return string to get the string expression length
+     * @access public
+     */
+    function length($expression)
+    {
+        return "LENGTH($expression)";
+    }
+
+    // }}}
+    // {{{ guid()
+
+    /**
+     * Returns global unique identifier
+     *
+     * @return string to get global unique identifier
+     * @access public
+     */
+    function guid()
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $error =& $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+        return $error;
+    }
+
+    // }}}
+}
 ?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Function/mssql.php b/program/lib/MDB2/Driver/Function/mssql.php
index 4ee028169..1038901b6 100644
--- a/program/lib/MDB2/Driver/Function/mssql.php
+++ b/program/lib/MDB2/Driver/Function/mssql.php
@@ -1,178 +1,193 @@
-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
-// | Stig. S. Bakken, Lukas Smith                                         |
-// | All rights reserved.                                                 |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
-// | API as well as database abstraction for PHP applications.            |
-// | This LICENSE is in the BSD license style.                            |
-// |                                                                      |
-// | Redistribution and use in source and binary forms, with or without   |
-// | modification, are permitted provided that the following conditions   |
-// | are met:                                                             |
-// |                                                                      |
-// | Redistributions of source code must retain the above copyright       |
-// | notice, this list of conditions and the following disclaimer.        |
-// |                                                                      |
-// | Redistributions in binary form must reproduce the above copyright    |
-// | notice, this list of conditions and the following disclaimer in the  |
-// | documentation and/or other materials provided with the distribution. |
-// |                                                                      |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission.                                                  |
-// |                                                                      |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
-// | POSSIBILITY OF SUCH DAMAGE.                                          |
-// +----------------------------------------------------------------------+
-// | Author: Frank M. Kromann <frank@kromann.info>                        |
-// +----------------------------------------------------------------------+
-//
-// $Id: mssql.php,v 1.15 2007/08/11 16:02:22 quipo Exp $
-//
-
-require_once 'MDB2/Driver/Function/Common.php';
-
-// {{{ class MDB2_Driver_Function_mssql
-/**
- * MDB2 MSSQL driver for the function modules
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Function_mssql extends MDB2_Driver_Function_Common
-{
-     // }}}
-    // {{{ executeStoredProc()
-
-    /**
-     * Execute a stored procedure and return any results
-     *
-     * @param string $name string that identifies the function to execute
-     * @param mixed  $params  array that contains the paramaters to pass the stored proc
-     * @param mixed   $types  array that contains the types of the columns in
-     *                        the result set
-     * @param mixed $result_class string which specifies which result class to use
-     * @param mixed $result_wrap_class string which specifies which class to wrap results in
-     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'EXECUTE '.$name;
-        $query .= $params ? ' '.implode(', ', $params) : '';
-        return $db->query($query, $types, $result_class, $result_wrap_class);
-    }
-
-    // }}}
-    // {{{ now()
-
-    /**
-     * Return string to call a variable with the current timestamp inside an SQL statement
-     * There are three special variables for current date and time:
-     * - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
-     * - CURRENT_DATE (date, DATE type)
-     * - CURRENT_TIME (time, TIME type)
-     *
-     * @return string to call a variable with the current timestamp
-     * @access public
-     */
-    function now($type = 'timestamp')
-    {
-        switch ($type) {
-        case 'time':
-        case 'date':
-        case 'timestamp':
-        default:
-            return 'GETDATE()';
-        }
-    }
-
-    // }}}
-    // {{{ substring()
-
-    /**
-     * return string to call a function to get a substring inside an SQL statement
-     *
-     * @return string to call a function to get a substring
-     * @access public
-     */
-    function substring($value, $position = 1, $length = null)
-    {
-        if (!is_null($length)) {
-            return "SUBSTRING($value, $position, $length)";
-        }
-        return "SUBSTRING($value, $position, LEN($value) - $position + 1)";
-    }
-
-    // }}}
-    // {{{ concat()
-
-    /**
-     * Returns string to concatenate two or more string parameters
-     *
-     * @param string $value1
-     * @param string $value2
-     * @param string $values...
-     * @return string to concatenate two strings
-     * @access public
-     **/
-    function concat($value1, $value2)
-    {
-        $args = func_get_args();
-        return "(".implode(' + ', $args).")";
-    }
-
-    // }}}
-    // {{{ length()
-
-    /**
-     * return string to call a function to get the length of a string expression
-     *
-     * @param string $expression
-     * @return return string to get the string expression length
-     * @access public
-     */
-    function length($expression)
-    {
-        return "LEN($expression)";
-    }
-
-    // }}}
-    // {{{ guid()
-
-    /**
-     * Returns global unique identifier
-     *
-     * @return string to get global unique identifier
-     * @access public
-     */
-    function guid()
-    {
-        return 'NEWID()';
-    }
-
-    // }}}
-}
-// }}}
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Frank M. Kromann <frank@kromann.info>                        |
+// +----------------------------------------------------------------------+
+//
+// $Id: mssql.php,v 1.16 2008/02/17 18:54:08 quipo Exp $
+//
+
+require_once 'MDB2/Driver/Function/Common.php';
+
+// {{{ class MDB2_Driver_Function_mssql
+/**
+ * MDB2 MSSQL driver for the function modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Function_mssql extends MDB2_Driver_Function_Common
+{
+    // {{{ executeStoredProc()
+
+    /**
+     * Execute a stored procedure and return any results
+     *
+     * @param string $name string that identifies the function to execute
+     * @param mixed  $params  array that contains the paramaters to pass the stored proc
+     * @param mixed   $types  array that contains the types of the columns in
+     *                        the result set
+     * @param mixed $result_class string which specifies which result class to use
+     * @param mixed $result_wrap_class string which specifies which class to wrap results in
+     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $query = 'EXECUTE '.$name;
+        $query .= $params ? ' '.implode(', ', $params) : '';
+        return $db->query($query, $types, $result_class, $result_wrap_class);
+    }
+
+    // }}}
+    // {{{ now()
+
+    /**
+     * Return string to call a variable with the current timestamp inside an SQL statement
+     * There are three special variables for current date and time:
+     * - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
+     * - CURRENT_DATE (date, DATE type)
+     * - CURRENT_TIME (time, TIME type)
+     *
+     * @return string to call a variable with the current timestamp
+     * @access public
+     */
+    function now($type = 'timestamp')
+    {
+        switch ($type) {
+        case 'time':
+        case 'date':
+        case 'timestamp':
+        default:
+            return 'GETDATE()';
+        }
+    }
+
+    // }}}
+    // {{{ unixtimestamp()
+
+    /**
+     * return string to call a function to get the unix timestamp from a iso timestamp
+     *
+     * @param string $expression
+     *
+     * @return string to call a variable with the timestamp
+     * @access public
+     */
+    function unixtimestamp($expression)
+    {
+        return 'DATEDIFF(second, \'19700101\', '. $expression.') + DATEDIFF(second, GETDATE(), GETUTCDATE())';
+    }
+
+    // }}}
+    // {{{ substring()
+
+    /**
+     * return string to call a function to get a substring inside an SQL statement
+     *
+     * @return string to call a function to get a substring
+     * @access public
+     */
+    function substring($value, $position = 1, $length = null)
+    {
+        if (!is_null($length)) {
+            return "SUBSTRING($value, $position, $length)";
+        }
+        return "SUBSTRING($value, $position, LEN($value) - $position + 1)";
+    }
+
+    // }}}
+    // {{{ concat()
+
+    /**
+     * Returns string to concatenate two or more string parameters
+     *
+     * @param string $value1
+     * @param string $value2
+     * @param string $values...
+     * @return string to concatenate two strings
+     * @access public
+     **/
+    function concat($value1, $value2)
+    {
+        $args = func_get_args();
+        return "(".implode(' + ', $args).")";
+    }
+
+    // }}}
+    // {{{ length()
+
+    /**
+     * return string to call a function to get the length of a string expression
+     *
+     * @param string $expression
+     * @return return string to get the string expression length
+     * @access public
+     */
+    function length($expression)
+    {
+        return "LEN($expression)";
+    }
+
+    // }}}
+    // {{{ guid()
+
+    /**
+     * Returns global unique identifier
+     *
+     * @return string to get global unique identifier
+     * @access public
+     */
+    function guid()
+    {
+        return 'NEWID()';
+    }
+
+    // }}}
+}
+// }}}
 ?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Function/mysql.php b/program/lib/MDB2/Driver/Function/mysql.php
index 90dea8174..d8ae7bbf6 100644
--- a/program/lib/MDB2/Driver/Function/mysql.php
+++ b/program/lib/MDB2/Driver/Function/mysql.php
@@ -1,120 +1,136 @@
-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
-// | Stig. S. Bakken, Lukas Smith                                         |
-// | All rights reserved.                                                 |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
-// | API as well as database abstraction for PHP applications.            |
-// | This LICENSE is in the BSD license style.                            |
-// |                                                                      |
-// | Redistribution and use in source and binary forms, with or without   |
-// | modification, are permitted provided that the following conditions   |
-// | are met:                                                             |
-// |                                                                      |
-// | Redistributions of source code must retain the above copyright       |
-// | notice, this list of conditions and the following disclaimer.        |
-// |                                                                      |
-// | Redistributions in binary form must reproduce the above copyright    |
-// | notice, this list of conditions and the following disclaimer in the  |
-// | documentation and/or other materials provided with the distribution. |
-// |                                                                      |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission.                                                  |
-// |                                                                      |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
-// | POSSIBILITY OF SUCH DAMAGE.                                          |
-// +----------------------------------------------------------------------+
-// | Author: Lukas Smith <smith@pooteeweet.org>                           |
-// +----------------------------------------------------------------------+
-//
-// $Id: mysql.php,v 1.11 2007/01/12 11:29:12 quipo Exp $
-//
-
-require_once 'MDB2/Driver/Function/Common.php';
-
-/**
- * MDB2 MySQL driver for the function modules
- *
- * @package MDB2
- * @category Database
- * @author  Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Function_mysql extends MDB2_Driver_Function_Common
-{
-     // }}}
-    // {{{ executeStoredProc()
-
-    /**
-     * Execute a stored procedure and return any results
-     *
-     * @param string $name string that identifies the function to execute
-     * @param mixed  $params  array that contains the paramaters to pass the stored proc
-     * @param mixed   $types  array that contains the types of the columns in
-     *                        the result set
-     * @param mixed $result_class string which specifies which result class to use
-     * @param mixed $result_wrap_class string which specifies which class to wrap results in
-     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'CALL '.$name;
-        $query .= $params ? '('.implode(', ', $params).')' : '()';
-        return $db->query($query, $types, $result_class, $result_wrap_class);
-    }
-
-    // }}}
-    // {{{ concat()
-
-    /**
-     * Returns string to concatenate two or more string parameters
-     *
-     * @param string $value1
-     * @param string $value2
-     * @param string $values...
-     * @return string to concatenate two strings
-     * @access public
-     **/
-    function concat($value1, $value2)
-    {
-        $args = func_get_args();
-        return "CONCAT(".implode(', ', $args).")";
-    }
-
-    // }}}
-    // {{{ guid()
-
-    /**
-     * Returns global unique identifier
-     *
-     * @return string to get global unique identifier
-     * @access public
-     */
-    function guid()
-    {
-        return 'UUID()';
-    }
-
-    // }}}
-}
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id: mysql.php,v 1.12 2008/02/17 18:54:08 quipo Exp $
+//
+
+require_once 'MDB2/Driver/Function/Common.php';
+
+/**
+ * MDB2 MySQL driver for the function modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author  Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Function_mysql extends MDB2_Driver_Function_Common
+{
+     // }}}
+    // {{{ executeStoredProc()
+
+    /**
+     * Execute a stored procedure and return any results
+     *
+     * @param string $name string that identifies the function to execute
+     * @param mixed  $params  array that contains the paramaters to pass the stored proc
+     * @param mixed   $types  array that contains the types of the columns in
+     *                        the result set
+     * @param mixed $result_class string which specifies which result class to use
+     * @param mixed $result_wrap_class string which specifies which class to wrap results in
+     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $query = 'CALL '.$name;
+        $query .= $params ? '('.implode(', ', $params).')' : '()';
+        return $db->query($query, $types, $result_class, $result_wrap_class);
+    }
+
+    // }}}
+    // {{{ unixtimestamp()
+
+    /**
+     * return string to call a function to get the unix timestamp from a iso timestamp
+     *
+     * @param string $expression
+     *
+     * @return string to call a variable with the timestamp
+     * @access public
+     */
+    function unixtimestamp($expression)
+    {
+        return 'UNIX_TIMESTAMP('. $expression.')';
+    }
+
+    // }}}
+    // {{{ concat()
+
+    /**
+     * Returns string to concatenate two or more string parameters
+     *
+     * @param string $value1
+     * @param string $value2
+     * @param string $values...
+     * @return string to concatenate two strings
+     * @access public
+     **/
+    function concat($value1, $value2)
+    {
+        $args = func_get_args();
+        return "CONCAT(".implode(', ', $args).")";
+    }
+
+    // }}}
+    // {{{ guid()
+
+    /**
+     * Returns global unique identifier
+     *
+     * @return string to get global unique identifier
+     * @access public
+     */
+    function guid()
+    {
+        return 'UUID()';
+    }
+
+    // }}}
+}
 ?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Function/mysqli.php b/program/lib/MDB2/Driver/Function/mysqli.php
index 5af55c1fd..c1fe5d60b 100644
--- a/program/lib/MDB2/Driver/Function/mysqli.php
+++ b/program/lib/MDB2/Driver/Function/mysqli.php
@@ -1,128 +1,144 @@
-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
-// | Stig. S. Bakken, Lukas Smith                                         |
-// | All rights reserved.                                                 |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
-// | API as well as database abstraction for PHP applications.            |
-// | This LICENSE is in the BSD license style.                            |
-// |                                                                      |
-// | Redistribution and use in source and binary forms, with or without   |
-// | modification, are permitted provided that the following conditions   |
-// | are met:                                                             |
-// |                                                                      |
-// | Redistributions of source code must retain the above copyright       |
-// | notice, this list of conditions and the following disclaimer.        |
-// |                                                                      |
-// | Redistributions in binary form must reproduce the above copyright    |
-// | notice, this list of conditions and the following disclaimer in the  |
-// | documentation and/or other materials provided with the distribution. |
-// |                                                                      |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission.                                                  |
-// |                                                                      |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
-// | POSSIBILITY OF SUCH DAMAGE.                                          |
-// +----------------------------------------------------------------------+
-// | Author: Lukas Smith <smith@pooteeweet.org>                           |
-// +----------------------------------------------------------------------+
-//
-// $Id: mysqli.php,v 1.13 2007/01/12 11:29:12 quipo Exp $
-//
-
-require_once 'MDB2/Driver/Function/Common.php';
-
-/**
- * MDB2 MySQLi driver for the function modules
- *
- * @package MDB2
- * @category Database
- * @author  Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Function_mysqli extends MDB2_Driver_Function_Common
-{
-     // }}}
-    // {{{ executeStoredProc()
-
-    /**
-     * Execute a stored procedure and return any results
-     *
-     * @param string $name string that identifies the function to execute
-     * @param mixed  $params  array that contains the paramaters to pass the stored proc
-     * @param mixed   $types  array that contains the types of the columns in
-     *                        the result set
-     * @param mixed $result_class string which specifies which result class to use
-     * @param mixed $result_wrap_class string which specifies which class to wrap results in
-     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $multi_query = $db->getOption('multi_query');
-        if (!$multi_query) {
-            $db->setOption('multi_query', true);
-        }
-        $query = 'CALL '.$name;
-        $query .= $params ? '('.implode(', ', $params).')' : '()';
-        $result =& $db->query($query, $types, $result_class, $result_wrap_class);
-        if (!$multi_query) {
-            $db->setOption('multi_query', false);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ concat()
-
-    /**
-     * Returns string to concatenate two or more string parameters
-     *
-     * @param string $value1
-     * @param string $value2
-     * @param string $values...
-     * @return string to concatenate two strings
-     * @access public
-     **/
-    function concat($value1, $value2)
-    {
-        $args = func_get_args();
-        return "CONCAT(".implode(', ', $args).")";
-    }
-
-    // }}}
-    // {{{ guid()
-
-    /**
-     * Returns global unique identifier
-     *
-     * @return string to get global unique identifier
-     * @access public
-     */
-    function guid()
-    {
-        return 'UUID()';
-    }
-
-    // }}}
-}
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id: mysqli.php,v 1.14 2008/02/17 18:54:08 quipo Exp $
+//
+
+require_once 'MDB2/Driver/Function/Common.php';
+
+/**
+ * MDB2 MySQLi driver for the function modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author  Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Function_mysqli extends MDB2_Driver_Function_Common
+{
+     // }}}
+    // {{{ executeStoredProc()
+
+    /**
+     * Execute a stored procedure and return any results
+     *
+     * @param string $name string that identifies the function to execute
+     * @param mixed  $params  array that contains the paramaters to pass the stored proc
+     * @param mixed   $types  array that contains the types of the columns in
+     *                        the result set
+     * @param mixed $result_class string which specifies which result class to use
+     * @param mixed $result_wrap_class string which specifies which class to wrap results in
+     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $multi_query = $db->getOption('multi_query');
+        if (!$multi_query) {
+            $db->setOption('multi_query', true);
+        }
+        $query = 'CALL '.$name;
+        $query .= $params ? '('.implode(', ', $params).')' : '()';
+        $result =& $db->query($query, $types, $result_class, $result_wrap_class);
+        if (!$multi_query) {
+            $db->setOption('multi_query', false);
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ unixtimestamp()
+
+    /**
+     * return string to call a function to get the unix timestamp from a iso timestamp
+     *
+     * @param string $expression
+     *
+     * @return string to call a variable with the timestamp
+     * @access public
+     */
+    function unixtimestamp($expression)
+    {
+        return 'UNIX_TIMESTAMP('. $expression.')';
+    }
+
+    // }}}
+    // {{{ concat()
+
+    /**
+     * Returns string to concatenate two or more string parameters
+     *
+     * @param string $value1
+     * @param string $value2
+     * @param string $values...
+     * @return string to concatenate two strings
+     * @access public
+     **/
+    function concat($value1, $value2)
+    {
+        $args = func_get_args();
+        return "CONCAT(".implode(', ', $args).")";
+    }
+
+    // }}}
+    // {{{ guid()
+
+    /**
+     * Returns global unique identifier
+     *
+     * @return string to get global unique identifier
+     * @access public
+     */
+    function guid()
+    {
+        return 'UUID()';
+    }
+
+    // }}}
+}
 ?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Function/pgsql.php b/program/lib/MDB2/Driver/Function/pgsql.php
index df1d455f3..8b23ec659 100644
--- a/program/lib/MDB2/Driver/Function/pgsql.php
+++ b/program/lib/MDB2/Driver/Function/pgsql.php
@@ -1,99 +1,115 @@
-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
-// | Stig. S. Bakken, Lukas Smith                                         |
-// | All rights reserved.                                                 |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
-// | API as well as database abstraction for PHP applications.            |
-// | This LICENSE is in the BSD license style.                            |
-// |                                                                      |
-// | Redistribution and use in source and binary forms, with or without   |
-// | modification, are permitted provided that the following conditions   |
-// | are met:                                                             |
-// |                                                                      |
-// | Redistributions of source code must retain the above copyright       |
-// | notice, this list of conditions and the following disclaimer.        |
-// |                                                                      |
-// | Redistributions in binary form must reproduce the above copyright    |
-// | notice, this list of conditions and the following disclaimer in the  |
-// | documentation and/or other materials provided with the distribution. |
-// |                                                                      |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission.                                                  |
-// |                                                                      |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
-// | POSSIBILITY OF SUCH DAMAGE.                                          |
-// +----------------------------------------------------------------------+
-// | Author: Paul Cooper <pgc@ucecom.com>                                 |
-// +----------------------------------------------------------------------+
-//
-// $Id: pgsql.php,v 1.9 2006/06/12 21:48:43 lsmith Exp $
-
-require_once 'MDB2/Driver/Function/Common.php';
-
-/**
- * MDB2 MySQL driver for the function modules
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Function_pgsql extends MDB2_Driver_Function_Common
-{
-    // {{{ executeStoredProc()
-
-    /**
-     * Execute a stored procedure and return any results
-     *
-     * @param string $name string that identifies the function to execute
-     * @param mixed  $params  array that contains the paramaters to pass the stored proc
-     * @param mixed   $types  array that contains the types of the columns in
-     *                        the result set
-     * @param mixed $result_class string which specifies which result class to use
-     * @param mixed $result_wrap_class string which specifies which class to wrap results in
-     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $query = 'SELECT * FROM '.$name;
-        $query .= $params ? '('.implode(', ', $params).')' : '()';
-        return $db->query($query, $types, $result_class, $result_wrap_class);
-    }
-    // }}}
-    // {{{ random()
-
-    /**
-     * return string to call a function to get random value inside an SQL statement
-     *
-     * @return return string to generate float between 0 and 1
-     * @access public
-     */
-    function random()
-    {
-        return 'RANDOM()';
-    }
-
-    // }}}
-}
-?>
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Paul Cooper <pgc@ucecom.com>                                 |
+// +----------------------------------------------------------------------+
+//
+// $Id: pgsql.php,v 1.10 2008/02/17 18:54:08 quipo Exp $
+
+require_once 'MDB2/Driver/Function/Common.php';
+
+/**
+ * MDB2 MySQL driver for the function modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Function_pgsql extends MDB2_Driver_Function_Common
+{
+    // {{{ executeStoredProc()
+
+    /**
+     * Execute a stored procedure and return any results
+     *
+     * @param string $name string that identifies the function to execute
+     * @param mixed  $params  array that contains the paramaters to pass the stored proc
+     * @param mixed   $types  array that contains the types of the columns in
+     *                        the result set
+     * @param mixed $result_class string which specifies which result class to use
+     * @param mixed $result_wrap_class string which specifies which class to wrap results in
+     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function &executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $query = 'SELECT * FROM '.$name;
+        $query .= $params ? '('.implode(', ', $params).')' : '()';
+        return $db->query($query, $types, $result_class, $result_wrap_class);
+    }
+    // }}}
+    // {{{ unixtimestamp()
+
+    /**
+     * return string to call a function to get the unix timestamp from a iso timestamp
+     *
+     * @param string $expression
+     *
+     * @return string to call a variable with the timestamp
+     * @access public
+     */
+    function unixtimestamp($expression)
+    {
+        return 'EXTRACT(EPOCH FROM DATE_TRUNC(\'seconds\', TIMESTAMP '. $expression.'))';
+    }
+
+    // }}}
+    // {{{ random()
+
+    /**
+     * return string to call a function to get random value inside an SQL statement
+     *
+     * @return return string to generate float between 0 and 1
+     * @access public
+     */
+    function random()
+    {
+        return 'RANDOM()';
+    }
+
+    // }}}
+}
+?>
\ No newline at end of file
diff --git a/program/lib/MDB2/Driver/Function/sqlite.php b/program/lib/MDB2/Driver/Function/sqlite.php
index 3a4960bea..2761059d0 100644
--- a/program/lib/MDB2/Driver/Function/sqlite.php
+++ b/program/lib/MDB2/Driver/Function/sqlite.php
@@ -1,125 +1,162 @@
-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
-// | Stig. S. Bakken, Lukas Smith                                         |
-// | All rights reserved.                                                 |
-// +----------------------------------------------------------------------+
-// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
-// | API as well as database abstraction for PHP applications.            |
-// | This LICENSE is in the BSD license style.                            |
-// |                                                                      |
-// | Redistribution and use in source and binary forms, with or without   |
-// | modification, are permitted provided that the following conditions   |
-// | are met:                                                             |
-// |                                                                      |
-// | Redistributions of source code must retain the above copyright       |
-// | notice, this list of conditions and the following disclaimer.        |
-// |                                                                      |
-// | Redistributions in binary form must reproduce the above copyright    |
-// | notice, this list of conditions and the following disclaimer in the  |
-// | documentation and/or other materials provided with the distribution. |
-// |                                                                      |
-// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
-// | Lukas Smith nor the names of his contributors may be used to endorse |
-// | or promote products derived from this software without specific prior|
-// | written permission.                                                  |
-// |                                                                      |
-// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
-// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
-// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
-// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
-// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
-// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
-// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
-// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
-// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
-// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
-// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
-// | POSSIBILITY OF SUCH DAMAGE.                                          |
-// +----------------------------------------------------------------------+
-// | Author: Lukas Smith <smith@pooteeweet.org>                           |
-// +----------------------------------------------------------------------+
-//
-// $Id: sqlite.php,v 1.8 2006/06/13 22:55:55 lsmith Exp $
-//
-
-require_once 'MDB2/Driver/Function/Common.php';
-
-/**
- * MDB2 SQLite driver for the function modules
- *
- * @package MDB2
- * @category Database
- * @author  Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Function_sqlite extends MDB2_Driver_Function_Common
-{
-    // {{{ constructor
-
-    /**
-     * Constructor
-     */
-    function __construct($db_index)
-    {
-        parent::__construct($db_index);
-        // create all sorts of UDFs
-    }
-
-    // {{{ now()
-
-    /**
-     * Return string to call a variable with the current timestamp inside an SQL statement
-     * There are three special variables for current date and time.
-     *
-     * @return string to call a variable with the current timestamp
-     * @access public
-     */
-    function now($type = 'timestamp')
-    {
-        switch ($type) {
-        case 'time':
-            return 'time(\'now\')';
-        case 'date':
-            return 'date(\'now\')';
-        case 'timestamp':
-        default:
-            return 'datetime(\'now\')';
-        }
-    }
-
-    // }}}
-    // {{{ substring()
-
-    /**
-     * return string to call a function to get a substring inside an SQL statement
-     *
-     * @return string to call a function to get a substring
-     * @access public
-     */
-    function substring($value, $position = 1, $length = null)
-    {
-        if (!is_null($length)) {
-            return "substr($value,$position,$length)";
-        }
-        return "substr($value,$position,length($value))";
-    }
-
-    // }}}
-    // {{{ random()
-
-    /**
-     * return string to call a function to get random value inside an SQL statement
-     *
-     * @return return string to generate float between 0 and 1
-     * @access public
-     */
-    function random()
-    {
-        return '((RANDOM()+2147483648)/4294967296)';
-    }
-
-    // }}}
-}
-?>
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id: sqlite.php,v 1.10 2008/02/17 18:54:08 quipo Exp $
+//
+
+require_once 'MDB2/Driver/Function/Common.php';
+
+/**
+ * MDB2 SQLite driver for the function modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author  Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Function_sqlite extends MDB2_Driver_Function_Common
+{
+    // {{{ constructor
+
+    /**
+     * Constructor
+     */
+    function __construct($db_index)
+    {
+        parent::__construct($db_index);
+        // create all sorts of UDFs
+    }
+
+    // {{{ now()
+
+    /**
+     * Return string to call a variable with the current timestamp inside an SQL statement
+     * There are three special variables for current date and time.
+     *
+     * @return string to call a variable with the current timestamp
+     * @access public
+     */
+    function now($type = 'timestamp')
+    {
+        switch ($type) {
+        case 'time':
+            return 'time(\'now\')';
+        case 'date':
+            return 'date(\'now\')';
+        case 'timestamp':
+        default:
+            return 'datetime(\'now\')';
+        }
+    }
+
+    // }}}
+    // {{{ unixtimestamp()
+
+    /**
+     * return string to call a function to get the unix timestamp from a iso timestamp
+     *
+     * @param string $expression
+     *
+     * @return string to call a variable with the timestamp
+     * @access public
+     */
+    function unixtimestamp($expression)
+    {
+        return 'strftime("%s",'. $expression.', "utc")';
+    }
+
+    // }}}
+    // {{{ substring()
+
+    /**
+     * return string to call a function to get a substring inside an SQL statement
+     *
+     * @return string to call a function to get a substring
+     * @access public
+     */
+    function substring($value, $position = 1, $length = null)
+    {
+        if (!is_null($length)) {
+            return "substr($value,$position,$length)";
+        }
+        return "substr($value,$position,length($value))";
+    }
+
+    // }}}
+    // {{{ random()
+
+    /**
+     * return string to call a function to get random value inside an SQL statement
+     *
+     * @return return string to generate float between 0 and 1
+     * @access public
+     */
+    function random()
+    {
+        return '((RANDOM()+2147483648)/4294967296)';
+    }
+
+    // }}}
+    // {{{ replace()
+
+    /**
+     * return string to call a function to get a replacement inside an SQL statement.
+     *
+     * @return string to call a function to get a replace
+     * @access public
+     */
+    function replace($str, $from_str, $to_str)
+    {
+        $db =& $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $error =& $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+            'method not implemented', __FUNCTION__);
+        return $error;
+    }
+
+    // }}}
+}
+?>
-- 
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