Removed MDB2 classes; install seperately

1 files changed, 0 insertions, 911 deletions

diff --git a/program/lib/MDB2/Driver/mysql.php b/program/lib/MDB2/Driver/mysql.php
deleted file mode 100644
index 387512c8c..000000000
--- a/program/lib/MDB2/Driver/mysql.php
+++ /dev/null
@@ -1,911 +0,0 @@
-<?php
-// vim: set et ts=4 sw=4 fdm=marker:
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5                                                 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2004 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>                           |
-// +----------------------------------------------------------------------+
-//
-// $Id$
-//
-
-/**
- * MDB2 MySQL driver
- *
- * @package MDB2
- * @category Database
- * @author  Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_mysql extends MDB2_Driver_Common
-{
-    // {{{ properties
-    var $escape_quotes = "\\";
-
-    // }}}
-    // {{{ constructor
-
-    /**
-    * Constructor
-    */
-    function __construct()
-    {
-        parent::__construct();
-
-        $this->phptype = 'mysql';
-        $this->dbsyntax = 'mysql';
-
-        $this->supported['sequences'] = 'emulated';
-        $this->supported['indexes'] = true;
-        $this->supported['affected_rows'] = true;
-        $this->supported['transactions'] = false;
-        $this->supported['summary_functions'] = true;
-        $this->supported['order_by_text'] = true;
-        $this->supported['current_id'] = 'emulated';
-        $this->supported['limit_queries'] = true;
-        $this->supported['LOBs'] = true;
-        $this->supported['replace'] = true;
-        $this->supported['sub_selects'] = 'emulated';
-        $this->supported['auto_increment'] = true;
-        $this->supported['primary_key'] = true;
-
-        $this->options['default_table_type'] = null;
-    }
-
-    // }}}
-    // {{{ errorInfo()
-
-    /**
-     * This method is used to collect information about an error
-     *
-     * @param integer $error
-     * @return array
-     * @access public
-     */
-    function errorInfo($error = null)
-    {
-        if ($this->connection) {
-            $native_code = @mysql_errno($this->connection);
-            $native_msg  = @mysql_error($this->connection);
-        } else {
-            $native_code = @mysql_errno();
-            $native_msg  = @mysql_error();
-        }
-        if (is_null($error)) {
-            static $ecode_map;
-            if (empty($ecode_map)) {
-                $ecode_map = array(
-                    1004 => MDB2_ERROR_CANNOT_CREATE,
-                    1005 => MDB2_ERROR_CANNOT_CREATE,
-                    1006 => MDB2_ERROR_CANNOT_CREATE,
-                    1007 => MDB2_ERROR_ALREADY_EXISTS,
-                    1008 => MDB2_ERROR_CANNOT_DROP,
-                    1022 => MDB2_ERROR_ALREADY_EXISTS,
-                    1044 => MDB2_ERROR_ACCESS_VIOLATION,
-                    1046 => MDB2_ERROR_NODBSELECTED,
-                    1048 => MDB2_ERROR_CONSTRAINT,
-                    1049 => MDB2_ERROR_NOSUCHDB,
-                    1050 => MDB2_ERROR_ALREADY_EXISTS,
-                    1051 => MDB2_ERROR_NOSUCHTABLE,
-                    1054 => MDB2_ERROR_NOSUCHFIELD,
-                    1061 => MDB2_ERROR_ALREADY_EXISTS,
-                    1062 => MDB2_ERROR_ALREADY_EXISTS,
-                    1064 => MDB2_ERROR_SYNTAX,
-                    1091 => MDB2_ERROR_NOT_FOUND,
-                    1100 => MDB2_ERROR_NOT_LOCKED,
-                    1136 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
-                    1142 => MDB2_ERROR_ACCESS_VIOLATION,
-                    1146 => MDB2_ERROR_NOSUCHTABLE,
-                    1216 => MDB2_ERROR_CONSTRAINT,
-                    1217 => MDB2_ERROR_CONSTRAINT,
-                );
-            }
-            if ($this->options['portability'] & MDB2_PORTABILITY_ERRORS) {
-                $ecode_map[1022] = MDB2_ERROR_CONSTRAINT;
-                $ecode_map[1048] = MDB2_ERROR_CONSTRAINT_NOT_NULL;
-                $ecode_map[1062] = MDB2_ERROR_CONSTRAINT;
-            } else {
-                // Doing this in case mode changes during runtime.
-                $ecode_map[1022] = MDB2_ERROR_ALREADY_EXISTS;
-                $ecode_map[1048] = MDB2_ERROR_CONSTRAINT;
-                $ecode_map[1062] = MDB2_ERROR_ALREADY_EXISTS;
-            }
-            if (isset($ecode_map[$native_code])) {
-                $error = $ecode_map[$native_code];
-            }
-        }
-        return array($error, $native_code, $native_msg);
-    }
-
-    // }}}
-    // {{{ escape()
-
-    /**
-     * Quotes a string so it can be safely used in a query. It will quote
-     * the text so it can safely be used within a query.
-     *
-     * @param string $text the input string to quote
-     * @return string quoted string
-     * @access public
-     */
-    function escape($text)
-    {
-        return @mysql_real_escape_string($text);
-    }
-
-    // }}}
-    // {{{ quoteIdentifier()
-
-    /**
-     * Quote a string so it can be safely used as a table or column name
-     *
-     * Quoting style depends on which database driver is being used.
-     *
-     * MySQL can't handle the backtick character (<kbd>`</kbd>) in
-     * table or column names.
-     *
-     * @param string $str  identifier name to be quoted
-     *
-     * @return string  quoted identifier string
-     *
-     * @access public
-     * @internal
-     */
-    function quoteIdentifier($str)
-    {
-        return '`' . $str . '`';
-    }
-
-    // }}}
-    // {{{ beginTransaction()
-
-    /**
-     * Start a transaction.
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function beginTransaction()
-    {
-        $this->debug('starting transaction', 'beginTransaction');
-        if (!$this->supports('transactions')) {
-            return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-                'beginTransaction: transactions are not in use');
-        }
-        if ($this->in_transaction) {
-            return MDB2_OK;  //nothing to do
-        }
-        if (!$this->destructor_registered && $this->opened_persistent) {
-            $this->destructor_registered = true;
-            register_shutdown_function('MDB2_closeOpenTransactions');
-        }
-        $result = $this->_doQuery('SET AUTOCOMMIT = 0', true);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        $this->in_transaction = true;
-        return MDB2_OK;
-    }
-
-    // }}}
-    // {{{ commit()
-
-    /**
-     * Commit the database changes done during a transaction that is in
-     * progress.
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function commit()
-    {
-        $this->debug('commit transaction', 'commit');
-        if (!$this->supports('transactions')) {
-            return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-                'commit: transactions are not in use');
-        }
-        if (!$this->in_transaction) {
-            return $this->raiseError(MDB2_ERROR, null, null,
-                'commit: transaction changes are being auto committed');
-        }
-        $result = $this->_doQuery('COMMIT', true);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        $result = $this->_doQuery('SET AUTOCOMMIT = 1', true);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        $this->in_transaction = false;
-        return MDB2_OK;
-    }
-
-    // }}}
-    // {{{ rollback()
-
-    /**
-     * Cancel any database changes done during a transaction that is in
-     * progress.
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     * @access public
-     */
-    function rollback()
-    {
-        $this->debug('rolling back transaction', 'rollback');
-        if (!$this->supports('transactions')) {
-            return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
-                'rollback: transactions are not in use');
-        }
-        if (!$this->in_transaction) {
-            return $this->raiseError(MDB2_ERROR, null, null,
-                'rollback: transactions can not be rolled back when changes are auto committed');
-        }
-        $result = $this->_doQuery('ROLLBACK', true);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        $result = $this->_doQuery('SET AUTOCOMMIT = 1', true);
-        if (PEAR::isError($result)) {
-            return $result;
-        }
-        $this->in_transaction = false;
-        return MDB2_OK;
-
-    }
-
-    // }}}
-    // {{{ connect()
-
-    /**
-     * Connect to the database
-     *
-     * @return true on success, MDB2 Error Object on failure
-     */
-    function connect()
-    {
-        if (is_resource($this->connection)) {
-            if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
-                && $this->opened_persistent == $this->options['persistent']
-            ) {
-                return MDB2_OK;
-            }
-            $this->disconnect(false);
-        }
-
-        if (!PEAR::loadExtension($this->phptype)) {
-            return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
-                'connect: extension '.$this->phptype.' is not compiled into PHP');
-        }
-
-        $params = array();
-        if ($this->dsn['protocol'] && $this->dsn['protocol'] == 'unix') {
-            $params[0] = ':' . $this->dsn['socket'];
-        } else {
-            $params[0] = $this->dsn['hostspec'] ? $this->dsn['hostspec']
-                         : 'localhost';
-            if ($this->dsn['port']) {
-                $params[0].= ':' . $this->dsn['port'];
-            }
-        }
-        $params[] = $this->dsn['username'] ? $this->dsn['username'] : null;
-        $params[] = $this->dsn['password'] ? $this->dsn['password'] : null;
-        if (!$this->options['persistent']) {
-            if (isset($this->dsn['new_link'])
-                && ($this->dsn['new_link'] == 'true' || $this->dsn['new_link'] === true)
-            ) {
-                $params[] = true;
-            } else {
-                $params[] = false;
-            }
-        }
-        if (version_compare(phpversion(), '4.3.0', '>=')) {
-            $params[] = isset($this->dsn['client_flags'])
-                ? $this->dsn['client_flags'] : null;
-        }
-
-        $connect_function = $this->options['persistent'] ? 'mysql_pconnect' : 'mysql_connect';
-
-        @ini_set('track_errors', true);
-        $php_errormsg = '';
-        $connection = @call_user_func_array($connect_function, $params);
-        @ini_restore('track_errors');
-        if (!$connection) {
-            if (($err = @mysql_error()) != '') {
-                return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, $err);
-            } else {
-                return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, $php_errormsg);
-            }
-        }
-
-        $this->connection = $connection;
-        $this->connected_dsn = $this->dsn;
-        $this->connected_database_name = '';
-        $this->opened_persistent = $this->options['persistent'];
-        $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
-
-        $this->supported['transactions'] = false;
-        if ($this->options['default_table_type']) {
-            switch (strtoupper($this->options['default_table_type'])) {
-            case 'BERKELEYDB':
-                $this->options['default_table_type'] = 'BDB';
-            case 'BDB':
-            case 'INNODB':
-            case 'GEMINI':
-                $this->supported['transactions'] = true;
-                break;
-            case 'HEAP':
-            case 'ISAM':
-            case 'MERGE':
-            case 'MRG_MYISAM':
-            case 'MYISAM':
-                break;
-            default:
-                $this->warnings[] = $default_table_type.
-                    ' is not a supported default table type';
-            }
-        }
-
-        if ($this->options['use_transactions'] && !$this->supports('transactions')) {
-            $this->warnings[] = $this->options['default_table_type'].
-                ' is not a transaction-safe default table type; switched to INNODB';
-            $this->options['default_table_type'] = 'INNODB';
-            $this->supported['transactions'] = true;
-        }
-
-        return MDB2_OK;
-    }
-
-    // }}}
-    // {{{ disconnect()
-
-    /**
-     * Log out and disconnect from the database.
-     *
-     * @return mixed true on success, false if not connected and error
-     *                object on error
-     * @access public
-     */
-    function disconnect($force = true)
-    {
-        if (is_resource($this->connection)) {
-            if (!$this->opened_persistent || $force) {
-                @mysql_close($this->connection);
-            }
-            $this->connection = 0;
-        }
-        return MDB2_OK;
-    }
-
-    // }}}
-    // {{{ _doQuery()
-
-    /**
-     * Execute a query
-     * @param string $query  query
-     * @param boolean $isManip  if the query is a manipulation query
-     * @param resource $connection
-     * @param string $database_name
-     * @return result or error object
-     * @access protected
-     */
-    function _doQuery($query, $isManip = false, $connection = null, $database_name = null)
-    {
-        $this->last_query = $query;
-        $this->debug($query, 'query');
-        if ($this->options['disable_query']) {
-            if ($isManip) {
-                return 0;
-            }
-            return null;
-        }
-
-        if (is_null($connection)) {
-            $err = $this->connect();
-            if (PEAR::isError($err)) {
-                return $err;
-            }
-            $connection = $this->connection;
-        }
-        if (is_null($database_name)) {
-            $database_name = $this->database_name;
-        }
-
-        if ($database_name) {
-            if ($database_name != $this->connected_database_name) {
-                if (!@mysql_select_db($database_name, $connection)) {
-                    return $this->raiseError();
-                }
-                $this->connected_database_name = $database_name;
-            }
-        }
-
-        $function = $this->options['result_buffering']
-            ? 'mysql_query' : 'mysql_unbuffered_query';
-        $result = @$function($query, $connection);
-        if (!$result) {
-            return $this->raiseError();
-        }
-
-        if ($isManip) {
-            return @mysql_affected_rows($connection);
-        }
-        return $result;
-    }
-
-    // }}}
-    // {{{ _modifyQuery()
-
-    /**
-     * Changes a query string for various DBMS specific reasons
-     *
-     * @param string $query  query to modify
-     * @return the new (modified) query
-     * @access protected
-     */
-    function _modifyQuery($query, $isManip, $limit, $offset)
-    {
-        if ($this->options['portability'] & MDB2_PORTABILITY_DELETE_COUNT) {
-            // "DELETE FROM table" gives 0 affected rows in MySQL.
-            // This little hack lets you know how many rows were deleted.
-            if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
-                $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
-                                      'DELETE FROM \1 WHERE 1=1', $query);
-            }
-        }
-        if ($limit > 0
-            && !preg_match('/LIMIT\s*\d(\s*(,|OFFSET)\s*\d+)?/i', $query)
-        ) {
-            $query = rtrim($query);
-            if (substr($query, -1) == ';') {
-                $query = substr($query, 0, -1);
-            }
-            if ($isManip) {
-                return $query . " LIMIT $limit";
-            } else {
-                return $query . " LIMIT $offset, $limit";
-            }
-        }
-        return $query;
-    }
-
-    // }}}
-    // {{{ replace()
-
-    /**
-     * Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT
-     * query, except that if there is already a row in the table with the same
-     * key field values, the REPLACE query just updates its values instead of
-     * inserting a new row.
-     *
-     * The REPLACE type of query does not make part of the SQL standards. Since
-     * practically only MySQL implements it natively, this type of query is
-     * emulated through this method for other DBMS using standard types of
-     * queries inside a transaction to assure the atomicity of the operation.
-     *
-     * @access public
-     *
-     * @param string $table name of the table on which the REPLACE query will
-     *  be executed.
-     * @param array $fields associative array that describes the fields and the
-     *  values that will be inserted or updated in the specified table. The
-     *  indexes of the array are the names of all the fields of the table. The
-     *  values of the array are also associative arrays that describe the
-     *  values and other properties of the table fields.
-     *
-     *  Here follows a list of field properties that need to be specified:
-     *
-     *    value:
-     *          Value to be assigned to the specified field. This value may be
-     *          of specified in database independent type format as this
-     *          function can perform the necessary datatype conversions.
-     *
-     *    Default:
-     *          this property is required unless the Null property
-     *          is set to 1.
-     *
-     *    type
-     *          Name of the type of the field. Currently, all types Metabase
-     *          are supported except for clob and blob.
-     *
-     *    Default: no type conversion
-     *
-     *    null
-     *          Boolean property that indicates that the value for this field
-     *          should be set to null.
-     *
-     *          The default value for fields missing in INSERT queries may be
-     *          specified the definition of a table. Often, the default value
-     *          is already null, but since the REPLACE may be emulated using
-     *          an UPDATE query, make sure that all fields of the table are
-     *          listed in this function argument array.
-     *
-     *    Default: 0
-     *
-     *    key
-     *          Boolean property that indicates that this field should be
-     *          handled as a primary key or at least as part of the compound
-     *          unique index of the table that will determine the row that will
-     *          updated if it exists or inserted a new row otherwise.
-     *
-     *          This function will fail if no key field is specified or if the
-     *          value of a key field is set to null because fields that are
-     *          part of unique index they may not be null.
-     *
-     *    Default: 0
-     *
-     * @return mixed MDB2_OK on success, a MDB2 error on failure
-     */
-    function replace($table, $fields)
-    {
-        $count = count($fields);
-        $query = $values = '';
-        $keys = $colnum = 0;
-        for (reset($fields); $colnum < $count; next($fields), $colnum++) {
-            $name = key($fields);
-            if ($colnum > 0) {
-                $query .= ',';
-                $values.= ',';
-            }
-            $query.= $name;
-            if (isset($fields[$name]['null']) && $fields[$name]['null']) {
-                $value = 'NULL';
-            } else {
-                $value = $this->quote($fields[$name]['value'], $fields[$name]['type']);
-            }
-            $values.= $value;
-            if (isset($fields[$name]['key']) && $fields[$name]['key']) {
-                if ($value === 'NULL') {
-                    return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
-                        'replace: key value '.$name.' may not be NULL');
-                }
-                $keys++;
-            }
-        }
-        if ($keys == 0) {
-            return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
-                'replace: not specified which fields are keys');
-        }
-        $query = "REPLACE INTO $table ($query) VALUES ($values)";
-        $this->last_query = $query;
-        $this->debug($query, 'query');
-        return $this->_doQuery($query, true);
-    }
-
-    // }}}
-    // {{{ nextID()
-
-    /**
-     * returns the next free id of a sequence
-     *
-     * @param string $seq_name name of the sequence
-     * @param boolean $ondemand when true the seqence is
-     *                          automatic created, if it
-     *                          not exists
-     *
-     * @return mixed MDB2 Error Object or id
-     * @access public
-     */
-    function nextID($seq_name, $ondemand = true)
-    {
-        $sequence_name = $this->getSequenceName($seq_name);
-        $query = "INSERT INTO $sequence_name (".$this->options['seqcol_name'].") VALUES (NULL)";
-        $this->expectError(MDB2_ERROR_NOSUCHTABLE);
-        $result = $this->_doQuery($query, true);
-        $this->popExpect();
-        if (PEAR::isError($result)) {
-            if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
-                $this->loadModule('Manager');
-                // Since we are creating the sequence on demand
-                // we know the first id = 1 so initialize the
-                // sequence at 2
-                $result = $this->manager->createSequence($seq_name, 2);
-                if (PEAR::isError($result)) {
-                    return $this->raiseError(MDB2_ERROR, null, null,
-                        'nextID: on demand sequence '.$seq_name.' could not be created');
-                } else {
-                    // First ID of a newly created sequence is 1
-                    return 1;
-                }
-            }
-            return $result;
-        }
-        $value = $this->queryOne('SELECT LAST_INSERT_ID()', 'integer');
-        if (is_numeric($value)) {
-            $query = "DELETE FROM $sequence_name WHERE ".$this->options['seqcol_name']." < $value";
-            $result = $this->_doQuery($query, true);
-            if (PEAR::isError($result)) {
-                $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name;
-            }
-        }
-        return $value;
-    }
-
-    // }}}
-    // {{{ lastInsertID()
-
-    /**
-     * returns the autoincrement ID if supported or $id
-     *
-     * @param mixed $id value as returned by getBeforeId()
-     * @param string $table name of the table into which a new row was inserted
-     * @return mixed MDB2 Error Object or id
-     * @access public
-     */
-    function lastInsertID($table = null, $field = null)
-    {
-        return $this->queryOne('SELECT LAST_INSERT_ID()', 'integer');
-    }
-
-    // }}}
-    // {{{ currID()
-
-    /**
-     * returns the current id of a sequence
-     *
-     * @param string $seq_name name of the sequence
-     * @return mixed MDB2 Error Object or id
-     * @access public
-     */
-    function currID($seq_name)
-    {
-        $sequence_name = $this->getSequenceName($seq_name);
-        $query = "SELECT MAX(".$this->options['seqcol_name'].") FROM $sequence_name";
-        return $this->queryOne($query, 'integer');
-    }
-}
-
-class MDB2_Result_mysql extends MDB2_Result_Common
-{
-    // }}}
-    // {{{ fetchRow()
-
-    /**
-     * Fetch a row and insert the data into an existing array.
-     *
-     * @param int       $fetchmode  how the array data should be indexed
-     * @param int    $rownum    number of the row where the data can be found
-     * @return int data array on success, a MDB2 error on failure
-     * @access public
-     */
-    function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
-    {
-        if (!is_null($rownum)) {
-            $seek = $this->seek($rownum);
-            if (PEAR::isError($seek)) {
-                return $seek;
-            }
-        }
-        if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
-            $fetchmode = $this->db->fetchmode;
-        }
-        if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
-            $row = @mysql_fetch_assoc($this->result);
-            if (is_array($row)
-                && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
-            ) {
-                $row = array_change_key_case($row, $this->db->options['field_case']);
-            }
-        } else {
-           $row = @mysql_fetch_row($this->result);
-        }
-
-        if (!$row) {
-            if (is_null($this->result)) {
-                $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
-                    'fetchRow: resultset has already been freed');
-                return $err;
-            }
-            $null = null;
-            return $null;
-        }
-        if ($this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL) {
-            $this->db->_fixResultArrayValues($row, MDB2_PORTABILITY_EMPTY_TO_NULL);
-        }
-        if (!empty($this->values)) {
-            $this->_assignBindColumns($row);
-        }
-        if (!empty($this->types)) {
-            $row = $this->db->datatype->convertResultRow($this->types, $row);
-        }
-        if ($fetchmode === MDB2_FETCHMODE_OBJECT) {
-            $object_class = $this->db->options['fetch_class'];
-            if ($object_class == 'stdClass') {
-                $row = (object) $row;
-            } else {
-                $row = &new $object_class($row);
-            }
-        }
-        ++$this->rownum;
-        return $row;
-    }
-
-    // }}}
-    // {{{ _getColumnNames()
-
-    /**
-     * Retrieve the names of columns returned by the DBMS in a query result.
-     *
-     * @return mixed                an associative array variable
-     *                              that will hold the names of columns. The
-     *                              indexes of the array are the column names
-     *                              mapped to lower case and the values are the
-     *                              respective numbers of the columns starting
-     *                              from 0. Some DBMS may not return any
-     *                              columns when the result set does not
-     *                              contain any rows.
-     *
-     *                              a MDB2 error on failure
-     * @access private
-     */
-    function _getColumnNames()
-    {
-        $columns = array();
-        $numcols = $this->numCols();
-        if (PEAR::isError($numcols)) {
-            return $numcols;
-        }
-        for ($column = 0; $column < $numcols; $column++) {
-            $column_name = @mysql_field_name($this->result, $column);
-            $columns[$column_name] = $column;
-        }
-        if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
-            $columns = array_change_key_case($columns, $this->db->options['field_case']);
-        }
-        return $columns;
-    }
-
-    // }}}
-    // {{{ numCols()
-
-    /**
-     * Count the number of columns returned by the DBMS in a query result.
-     *
-     * @return mixed integer value with the number of columns, a MDB2 error
-     *                       on failure
-     * @access public
-     */
-    function numCols()
-    {
-        $cols = @mysql_num_fields($this->result);
-        if (is_null($cols)) {
-            if (is_null($this->result)) {
-                return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
-                    'numCols: resultset has already been freed');
-            }
-            return $this->db->raiseError();
-        }
-        return $cols;
-    }
-
-    // }}}
-    // {{{ free()
-
-    /**
-     * Free the internal resources associated with result.
-     *
-     * @return boolean true on success, false if result is invalid
-     * @access public
-     */
-    function free()
-    {
-        $free = @mysql_free_result($this->result);
-        if (!$free) {
-            if (is_null($this->result)) {
-                return MDB2_OK;
-            }
-            return $this->db->raiseError();
-        }
-        $this->result = null;
-        return MDB2_OK;
-    }
-}
-
-class MDB2_BufferedResult_mysql extends MDB2_Result_mysql
-{
-    // }}}
-    // {{{ seek()
-
-    /**
-    * seek to a specific row in a result set
-    *
-    * @param int    $rownum    number of the row where the data can be found
-    * @return mixed MDB2_OK on success, a MDB2 error on failure
-    * @access public
-    */
-    function seek($rownum = 0)
-    {
-        if ($this->rownum != ($rownum - 1) && !@mysql_data_seek($this->result, $rownum)) {
-            if (is_null($this->result)) {
-                return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
-                    'seek: resultset has already been freed');
-            }
-            return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
-                'seek: tried to seek to an invalid row number ('.$rownum.')');
-        }
-        $this->rownum = $rownum - 1;
-        return MDB2_OK;
-    }
-
-    // }}}
-    // {{{ valid()
-
-    /**
-    * check if the end of the result set has been reached
-    *
-    * @return mixed true or false on sucess, a MDB2 error on failure
-    * @access public
-    */
-    function valid()
-    {
-        $numrows = $this->numRows();
-        if (PEAR::isError($numrows)) {
-            return $numrows;
-        }
-        return $this->rownum < ($numrows - 1);
-    }
-
-    // }}}
-    // {{{ numRows()
-
-    /**
-    * returns the number of rows in a result object
-    *
-    * @return mixed MDB2 Error Object or the number of rows
-    * @access public
-    */
-    function numRows()
-    {
-        $rows = @mysql_num_rows($this->result);
-        if (is_null($rows)) {
-            if (is_null($this->result)) {
-                return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
-                    'numRows: resultset has already been freed');
-            }
-            return $this->raiseError();
-        }
-        return $rows;
-    }
-}
-
-class MDB2_Statement_mysql extends MDB2_Statement_Common
-{
-
-}
-?>
\ No newline at end of file