Merge branch 'pdo'

Conflicts:
	CHANGELOG

1 files changed, 0 insertions, 1014 deletions

diff --git a/program/lib/MDB2/Driver/Manager/Common.php b/program/lib/MDB2/Driver/Manager/Common.php
deleted file mode 100644
index f7f07d9ec..000000000
--- a/program/lib/MDB2/Driver/Manager/Common.php
+++ /dev/null
@@ -1,1014 +0,0 @@
-<?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.                                          |
-// +----------------------------------------------------------------------+
-// | Authors: Lukas Smith <smith@pooteeweet.org>                          |
-// |          Lorenzo Alberton <l.alberton@quipo.it>                      |
-// +----------------------------------------------------------------------+
-//
-// $Id: Common.php 273526 2009-01-14 15:01:21Z quipo $
-//
-
-/**
- * @package  MDB2
- * @category Database
- * @author   Lukas Smith <smith@pooteeweet.org>
- * @author   Lorenzo Alberton <l.alberton@quipo.it>
- */
-
-/**
- * Base class for the management modules that is extended by each MDB2 driver
- *
- * To load this module in the MDB2 object:
- * $mdb->loadModule('Manager');
- *
- * @package MDB2
- * @category Database
- * @author  Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Manager_Common extends MDB2_Module_Common
-{
-    // {{{ splitTableSchema()
-
-    /**
-     * Split the "[owner|schema].table" notation into an array
-     *
-     * @param string $table [schema and] table name
-     *
-     * @return array array(schema, table)
-     * @access private
-     */
-    function splitTableSchema($table)
-    {
-        $ret = array();
-        if (strpos($table, '.') !== false) {
-            return explode('.', $table);
-        }
-        return array(null, $table);
-    }
-
-    // }}}
-    // {{{ getFieldDeclarationList()
-
-    /**
-     * Get declaration of a number of field in bulk
-     *
-     * @param array $fields  a multidimensional associative array.
-     *      The first dimension determines the field name, while the second
-     *      dimension is keyed with the name of the properties
-     *      of the field being declared as array indexes. Currently, the types
-     *      of supported field properties are as follows:
-     *
-     *      default
-     *          Boolean value to be used as default for this field.
-     *
-     *      notnull
-     *          Boolean flag that indicates whether this field is constrained
-     *          to not be set to null.
-     *
-     * @return mixed string on success, a MDB2 error on failure
-     * @access public
-     */
-    function getFieldDeclarationList($fields)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        if (!is_array($fields) || empty($fields)) {
-            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
-                'missing any fields', __FUNCTION__);
-        }
-        foreach ($fields as $field_name => $field) {
-            $query = $db->getDeclaration($field['type'], $field_name, $field);
-            if (PEAR::isError($query)) {
-                return $query;
-            }
-            $query_fields[] = $query;
-        }
-        return implode(', ', $query_fields);
-    }
-
-    // }}}
-    // {{{ _fixSequenceName()
-
-    /**
-     * Removes any formatting in an sequence name using the 'seqname_format' option
-     *
-     * @param string $sqn string that containts name of a potential sequence
-     * @param bool $check if only formatted sequences should be returned
-     * @return string name of the sequence with possible formatting removed
-     * @access protected
-     */
-    function _fixSequenceName($sqn, $check = false)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $seq_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['seqname_format']).'$/i';
-        $seq_name = preg_replace($seq_pattern, '\\1', $sqn);
-        if ($seq_name && !strcasecmp($sqn, $db->getSequenceName($seq_name))) {
-            return $seq_name;
-        }
-        if ($check) {
-            return false;
-        }
-        return $sqn;
-    }
-
-    // }}}
-    // {{{ _fixIndexName()
-
-    /**
-     * Removes any formatting in an index name using the 'idxname_format' option
-     *
-     * @param string $idx string that containts name of anl index
-     * @return string name of the index with eventual formatting removed
-     * @access protected
-     */
-    function _fixIndexName($idx)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $idx_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['idxname_format']).'$/i';
-        $idx_name = preg_replace($idx_pattern, '\\1', $idx);
-        if ($idx_name && !strcasecmp($idx, $db->getIndexName($idx_name))) {
-            return $idx_name;
-        }
-        return $idx;
-    }
-
-    // }}}
-    // {{{ createDatabase()
-
-    /**
-     * create a new database
-     *
-     * @param string $name    name of the database that should be created
-     * @param array  $options array with charset, collation info
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function createDatabase($database, $options = array())
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ alterDatabase()
-
-    /**
-     * alter an existing database
-     *
-     * @param string $name    name of the database that should be created
-     * @param array  $options array with charset, collation info
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function alterDatabase($database, $options = array())
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ dropDatabase()
-
-    /**
-     * drop an existing database
-     *
-     * @param string $name name of the database that should be dropped
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropDatabase($database)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ _getCreateTableQuery()
-
-    /**
-     * Create a basic SQL query for a new table creation
-     *
-     * @param string $name    Name of the database that should be created
-     * @param array  $fields  Associative array that contains the definition of each field of the new table
-     * @param array  $options An associative array of table options
-     *
-     * @return mixed string (the SQL query) on success, a MDB2 error on failure
-     * @see createTable()
-     */
-    function _getCreateTableQuery($name, $fields, $options = array())
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        if (!$name) {
-            return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null,
-                'no valid table name specified', __FUNCTION__);
-        }
-        if (empty($fields)) {
-            return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null,
-                'no fields specified for table "'.$name.'"', __FUNCTION__);
-        }
-        $query_fields = $this->getFieldDeclarationList($fields);
-        if (PEAR::isError($query_fields)) {
-            return $query_fields;
-        }
-        if (!empty($options['primary'])) {
-            $query_fields.= ', PRIMARY KEY ('.implode(', ', array_keys($options['primary'])).')';
-        }
-
-        $name = $db->quoteIdentifier($name, true);
-        $result = 'CREATE ';
-        if (!empty($options['temporary'])) {
-            $result .= $this->_getTemporaryTableQuery();
-        }
-        $result .= " TABLE $name ($query_fields)";
-        return $result;
-    }
-
-    // }}}
-    // {{{ _getTemporaryTableQuery()
-
-    /**
-     * A method to return the required SQL string that fits between CREATE ... TABLE
-     * to create the table as a temporary table.
-     *
-     * Should be overridden in driver classes to return the correct string for the
-     * specific database type.
-     *
-     * The default is to return the string "TEMPORARY" - this will result in a
-     * SQL error for any database that does not support temporary tables, or that
-     * requires a different SQL command from "CREATE TEMPORARY TABLE".
-     *
-     * @return string The string required to be placed between "CREATE" and "TABLE"
-     *                to generate a temporary table, if possible.
-     */
-    function _getTemporaryTableQuery()
-    {
-        return 'TEMPORARY';
-    }
-
-    // }}}
-    // {{{ createTable()
-
-    /**
-     * create a new table
-     *
-     * @param string $name   Name of the database that should be created
-     * @param array $fields  Associative array that contains the definition of each field of the new table
-     *                       The indexes of the array entries are the names of the fields of the table an
-     *                       the array entry values are associative arrays like those that are meant to be
-     *                       passed with the field definitions to get[Type]Declaration() functions.
-     *                          array(
-     *                              'id' => array(
-     *                                  'type' => 'integer',
-     *                                  'unsigned' => 1
-     *                                  'notnull' => 1
-     *                                  'default' => 0
-     *                              ),
-     *                              'name' => array(
-     *                                  'type' => 'text',
-     *                                  'length' => 12
-     *                              ),
-     *                              'password' => array(
-     *                                  'type' => 'text',
-     *                                  'length' => 12
-     *                              )
-     *                          );
-     * @param array $options  An associative array of table options:
-     *                          array(
-     *                              'comment' => 'Foo',
-     *                              'temporary' => true|false,
-     *                          );
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function createTable($name, $fields, $options = array())
-    {
-        $query = $this->_getCreateTableQuery($name, $fields, $options);
-        if (PEAR::isError($query)) {
-            return $query;
-        }
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-        $result = $db->exec($query);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        return MDB2_OK;
-    }
-
-    // }}}
-    // {{{ dropTable()
-
-    /**
-     * drop an existing table
-     *
-     * @param string $name name of the table that should be dropped
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropTable($name)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $name = $db->quoteIdentifier($name, true);
-        return $db->exec("DROP TABLE $name");
-    }
-
-    // }}}
-    // {{{ truncateTable()
-
-    /**
-     * Truncate an existing table (if the TRUNCATE TABLE syntax is not supported,
-     * it falls back to a DELETE FROM TABLE query)
-     *
-     * @param string $name name of the table that should be truncated
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function truncateTable($name)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $name = $db->quoteIdentifier($name, true);
-        return $db->exec("DELETE FROM $name");
-    }
-
-    // }}}
-    // {{{ vacuum()
-
-    /**
-     * Optimize (vacuum) all the tables in the db (or only the specified table)
-     * and optionally run ANALYZE.
-     *
-     * @param string $table table name (all the tables if empty)
-     * @param array  $options an array with driver-specific options:
-     *               - timeout [int] (in seconds) [mssql-only]
-     *               - analyze [boolean] [pgsql and mysql]
-     *               - full [boolean] [pgsql-only]
-     *               - freeze [boolean] [pgsql-only]
-     *
-     * @return mixed MDB2_OK success, a MDB2 error on failure
-     * @access public
-     */
-    function vacuum($table = null, $options = array())
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ alterTable()
-
-    /**
-     * alter an existing table
-     *
-     * @param string $name         name of the table that is intended to be changed.
-     * @param array $changes     associative array that contains the details of each type
-     *                             of change that is intended to be performed. The types of
-     *                             changes that are currently supported are defined as follows:
-     *
-     *                             name
-     *
-     *                                New name for the table.
-     *
-     *                            add
-     *
-     *                                Associative array with the names of fields to be added as
-     *                                 indexes of the array. The value of each entry of the array
-     *                                 should be set to another associative array with the properties
-     *                                 of the fields to be added. The properties of the fields should
-     *                                 be the same as defined by the MDB2 parser.
-     *
-     *
-     *                            remove
-     *
-     *                                Associative array with the names of fields to be removed as indexes
-     *                                 of the array. Currently the values assigned to each entry are ignored.
-     *                                 An empty array should be used for future compatibility.
-     *
-     *                            rename
-     *
-     *                                Associative array with the names of fields to be renamed as indexes
-     *                                 of the array. The value of each entry of the array should be set to
-     *                                 another associative array with the entry named name with the new
-     *                                 field name and the entry named Declaration that is expected to contain
-     *                                 the portion of the field declaration already in DBMS specific SQL code
-     *                                 as it is used in the CREATE TABLE statement.
-     *
-     *                            change
-     *
-     *                                Associative array with the names of the fields to be changed as indexes
-     *                                 of the array. Keep in mind that if it is intended to change either the
-     *                                 name of a field and any other properties, the change array entries
-     *                                 should have the new names of the fields as array indexes.
-     *
-     *                                The value of each entry of the array should be set to another associative
-     *                                 array with the properties of the fields to that are meant to be changed as
-     *                                 array entries. These entries should be assigned to the new values of the
-     *                                 respective properties. The properties of the fields should be the same
-     *                                 as defined by the MDB2 parser.
-     *
-     *                            Example
-     *                                array(
-     *                                    'name' => 'userlist',
-     *                                    'add' => array(
-     *                                        'quota' => array(
-     *                                            'type' => 'integer',
-     *                                            'unsigned' => 1
-     *                                        )
-     *                                    ),
-     *                                    'remove' => array(
-     *                                        'file_limit' => array(),
-     *                                        'time_limit' => array()
-     *                                    ),
-     *                                    'change' => array(
-     *                                        'name' => array(
-     *                                            'length' => '20',
-     *                                            'definition' => array(
-     *                                                'type' => 'text',
-     *                                                'length' => 20,
-     *                                            ),
-     *                                        )
-     *                                    ),
-     *                                    'rename' => array(
-     *                                        'sex' => array(
-     *                                            'name' => 'gender',
-     *                                            'definition' => array(
-     *                                                'type' => 'text',
-     *                                                'length' => 1,
-     *                                                'default' => 'M',
-     *                                            ),
-     *                                        )
-     *                                    )
-     *                                )
-     *
-     * @param boolean $check     indicates whether the function should just check if the DBMS driver
-     *                             can perform the requested table alterations if the value is true or
-     *                             actually perform them otherwise.
-     * @access public
-     *
-      * @return mixed MDB2_OK on success, a MDB2 error on failure
-     */
-    function alterTable($name, $changes, $check)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listDatabases()
-
-    /**
-     * list all databases
-     *
-     * @return mixed array of database names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listDatabases()
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implementedd', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listUsers()
-
-    /**
-     * list all users
-     *
-     * @return mixed array of user names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listUsers()
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listViews()
-
-    /**
-     * list all views in the current database
-     *
-     * @param string database, the current is default
-     *               NB: not all the drivers can get the view names from
-     *               a database other than the current one
-     * @return mixed array of view names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listViews($database = null)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listTableViews()
-
-    /**
-     * list the views in the database that reference a given table
-     *
-     * @param string table for which all referenced views should be found
-     * @return mixed array of view names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableViews($table)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listTableTriggers()
-
-    /**
-     * list all triggers in the database that reference a given table
-     *
-     * @param string table for which all referenced triggers should be found
-     * @return mixed array of trigger names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableTriggers($table = null)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listFunctions()
-
-    /**
-     * list all functions in the current database
-     *
-     * @return mixed array of function names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listFunctions()
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listTables()
-
-    /**
-     * list all tables in the current database
-     *
-     * @param string database, the current is default.
-     *               NB: not all the drivers can get the table names from
-     *               a database other than the current one
-     * @return mixed array of table names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTables($database = null)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listTableFields()
-
-    /**
-     * list all fields in a table in the current database
-     *
-     * @param string $table name of table that should be used in method
-     * @return mixed array of field names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableFields($table)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ createIndex()
-
-    /**
-     * Get the stucture of a field into an array
-     *
-     * @param string    $table         name of the table on which the index is to be created
-     * @param string    $name         name of the index to be created
-     * @param array     $definition        associative array that defines properties of the index to be created.
-     *                                 Currently, only one property named FIELDS is supported. This property
-     *                                 is also an associative with the names of the index fields as array
-     *                                 indexes. Each entry of this array is set to another type of associative
-     *                                 array that specifies properties of the index that are specific to
-     *                                 each field.
-     *
-     *                                Currently, only the sorting property is supported. It should be used
-     *                                 to define the sorting direction of the index. It may be set to either
-     *                                 ascending or descending.
-     *
-     *                                Not all DBMS support index sorting direction configuration. The DBMS
-     *                                 drivers of those that do not support it ignore this property. Use the
-     *                                 function supports() to determine whether the DBMS driver can manage indexes.
-     *
-     *                                 Example
-     *                                    array(
-     *                                        'fields' => array(
-     *                                            'user_name' => array(
-     *                                                'sorting' => 'ascending'
-     *                                            ),
-     *                                            'last_login' => array()
-     *                                        )
-     *                                    )
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function createIndex($table, $name, $definition)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $table = $db->quoteIdentifier($table, true);
-        $name = $db->quoteIdentifier($db->getIndexName($name), true);
-        $query = "CREATE INDEX $name ON $table";
-        $fields = array();
-        foreach (array_keys($definition['fields']) as $field) {
-            $fields[] = $db->quoteIdentifier($field, true);
-        }
-        $query .= ' ('. implode(', ', $fields) . ')';
-        return $db->exec($query);
-    }
-
-    // }}}
-    // {{{ dropIndex()
-
-    /**
-     * drop existing index
-     *
-     * @param string    $table         name of table that should be used in method
-     * @param string    $name         name of the index to be dropped
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropIndex($table, $name)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $name = $db->quoteIdentifier($db->getIndexName($name), true);
-        return $db->exec("DROP INDEX $name");
-    }
-
-    // }}}
-    // {{{ listTableIndexes()
-
-    /**
-     * list all indexes in a table
-     *
-     * @param string $table name of table that should be used in method
-     * @return mixed array of index names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableIndexes($table)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ _getAdvancedFKOptions()
-
-    /**
-     * Return the FOREIGN KEY query section dealing with non-standard options
-     * as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
-     *
-     * @param array $definition
-     * @return string
-     * @access protected
-     */
-    function _getAdvancedFKOptions($definition)
-    {
-        return '';
-    }
-
-    // }}}
-    // {{{ createConstraint()
-
-    /**
-     * create a constraint on a table
-     *
-     * @param string    $table       name of the table on which the constraint is to be created
-     * @param string    $name        name of the constraint to be created
-     * @param array     $definition  associative array that defines properties of the constraint to be created.
-     *                               The full structure of the array looks like this:
-     *          <pre>
-     *          array (
-     *              [primary] => 0
-     *              [unique]  => 0
-     *              [foreign] => 1
-     *              [check]   => 0
-     *              [fields] => array (
-     *                  [field1name] => array() // one entry per each field covered
-     *                  [field2name] => array() // by the index
-     *                  [field3name] => array(
-     *                      [sorting]  => ascending
-     *                      [position] => 3
-     *                  )
-     *              )
-     *              [references] => array(
-     *                  [table] => name
-     *                  [fields] => array(
-     *                      [field1name] => array(  //one entry per each referenced field
-     *                           [position] => 1
-     *                      )
-     *                  )
-     *              )
-     *              [deferrable] => 0
-     *              [initiallydeferred] => 0
-     *              [onupdate] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION
-     *              [ondelete] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION
-     *              [match] => SIMPLE|PARTIAL|FULL
-     *          );
-     *          </pre>
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function createConstraint($table, $name, $definition)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-        $table = $db->quoteIdentifier($table, true);
-        $name = $db->quoteIdentifier($db->getIndexName($name), true);
-        $query = "ALTER TABLE $table ADD CONSTRAINT $name";
-        if (!empty($definition['primary'])) {
-            $query.= ' PRIMARY KEY';
-        } elseif (!empty($definition['unique'])) {
-            $query.= ' UNIQUE';
-        } elseif (!empty($definition['foreign'])) {
-            $query.= ' FOREIGN KEY';
-        }
-        $fields = array();
-        foreach (array_keys($definition['fields']) as $field) {
-            $fields[] = $db->quoteIdentifier($field, true);
-        }
-        $query .= ' ('. implode(', ', $fields) . ')';
-        if (!empty($definition['foreign'])) {
-            $query.= ' REFERENCES ' . $db->quoteIdentifier($definition['references']['table'], true);
-            $referenced_fields = array();
-            foreach (array_keys($definition['references']['fields']) as $field) {
-                $referenced_fields[] = $db->quoteIdentifier($field, true);
-            }
-            $query .= ' ('. implode(', ', $referenced_fields) . ')';
-            $query .= $this->_getAdvancedFKOptions($definition);
-        }
-        return $db->exec($query);
-    }
-
-    // }}}
-    // {{{ dropConstraint()
-
-    /**
-     * drop existing constraint
-     *
-     * @param string    $table        name of table that should be used in method
-     * @param string    $name         name of the constraint to be dropped
-     * @param string    $primary      hint if the constraint is primary
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropConstraint($table, $name, $primary = false)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        $table = $db->quoteIdentifier($table, true);
-        $name = $db->quoteIdentifier($db->getIndexName($name), true);
-        return $db->exec("ALTER TABLE $table DROP CONSTRAINT $name");
-    }
-
-    // }}}
-    // {{{ listTableConstraints()
-
-    /**
-     * list all constraints in a table
-     *
-     * @param string $table name of table that should be used in method
-     * @return mixed array of constraint names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listTableConstraints($table)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ createSequence()
-
-    /**
-     * create sequence
-     *
-     * @param string    $seq_name     name of the sequence to be created
-     * @param string    $start         start value of the sequence; default is 1
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function createSequence($seq_name, $start = 1)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ dropSequence()
-
-    /**
-     * drop existing sequence
-     *
-     * @param string    $seq_name     name of the sequence to be dropped
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function dropSequence($name)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-    // {{{ listSequences()
-
-    /**
-     * list all sequences in the current database
-     *
-     * @param string database, the current is default
-     *               NB: not all the drivers can get the sequence names from
-     *               a database other than the current one
-     * @return mixed array of sequence names on success, a MDB2 error on failure
-     * @access public
-     */
-    function listSequences($database = null)
-    {
-        $db =& $this->getDBInstance();
-        if (PEAR::isError($db)) {
-            return $db;
-        }
-
-        return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-            'method not implemented', __FUNCTION__);
-    }
-
-    // }}}
-}
-?>
\ No newline at end of file