| | |
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| | | <?php
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| | | // vim: set et ts=4 sw=4 fdm=marker:
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| | | // +----------------------------------------------------------------------+
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| | | // | PHP versions 4 and 5 |
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| | | // +----------------------------------------------------------------------+
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| | | // | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox, |
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| | | // | Stig. S. Bakken, Lukas Smith |
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| | | // | All rights reserved. |
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| | | // +----------------------------------------------------------------------+
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| | | // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
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| | | // | API as well as database abstraction for PHP applications. |
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| | | // | This LICENSE is in the BSD license style. |
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| | | // | |
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| | | // | Redistribution and use in source and binary forms, with or without |
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| | | // | modification, are permitted provided that the following conditions |
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| | | // | are met: |
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| | | // | |
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| | | // | Redistributions of source code must retain the above copyright |
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| | | // | notice, this list of conditions and the following disclaimer. |
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| | | // | |
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| | | // | Redistributions in binary form must reproduce the above copyright |
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| | | // | notice, this list of conditions and the following disclaimer in the |
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| | | // | documentation and/or other materials provided with the distribution. |
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| | | // | |
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| | | // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
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| | | // | Lukas Smith nor the names of his contributors may be used to endorse |
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| | | // | or promote products derived from this software without specific prior|
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| | | // | written permission. |
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| | | // | |
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| | | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| | | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| | | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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| | | // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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| | | // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| | | // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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| | | // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
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| | | // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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| | | // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| | | // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
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| | | // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| | | // | POSSIBILITY OF SUCH DAMAGE. |
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| | | // +----------------------------------------------------------------------+
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| | | // | Author: Lukas Smith <smith@pooteeweet.org> |
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| | | // +----------------------------------------------------------------------+
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| | | //
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| | | // $Id: mysql.php,v 1.195 2007/11/10 13:27:03 quipo Exp $
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| | | //
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| | |
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| | | /**
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| | | * MDB2 MySQL driver
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| | | *
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| | | * @package MDB2
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| | | * @category Database
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| | | * @author Lukas Smith <smith@pooteeweet.org>
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| | | */
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| | | class MDB2_Driver_mysql extends MDB2_Driver_Common
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| | | {
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| | | // {{{ properties
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| | |
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| | | var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => '\\', 'escape_pattern' => '\\');
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| | |
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| | | var $identifier_quoting = array('start' => '`', 'end' => '`', 'escape' => '`');
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| | |
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| | | var $sql_comments = array(
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| | | array('start' => '-- ', 'end' => "\n", 'escape' => false),
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| | | array('start' => '#', 'end' => "\n", 'escape' => false),
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| | | array('start' => '/*', 'end' => '*/', 'escape' => false),
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| | | );
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| | |
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| | | var $server_capabilities_checked = false;
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| | |
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| | | var $start_transaction = false;
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| | |
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| | | var $varchar_max_length = 255;
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| | |
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| | | // }}}
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| | | // {{{ constructor
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| | |
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| | | /**
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| | | * Constructor
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| | | */
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| | | function __construct()
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| | | {
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| | | parent::__construct();
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| | |
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| | | $this->phptype = 'mysql';
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| | | $this->dbsyntax = 'mysql';
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| | |
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| | | $this->supported['sequences'] = 'emulated';
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| | | $this->supported['indexes'] = true;
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| | | $this->supported['affected_rows'] = true;
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| | | $this->supported['transactions'] = false;
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| | | $this->supported['savepoints'] = false;
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| | | $this->supported['summary_functions'] = true;
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| | | $this->supported['order_by_text'] = true;
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| | | $this->supported['current_id'] = 'emulated';
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| | | $this->supported['limit_queries'] = true;
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| | | $this->supported['LOBs'] = true;
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| | | $this->supported['replace'] = true;
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| | | $this->supported['sub_selects'] = 'emulated';
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| | | $this->supported['auto_increment'] = true;
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| | | $this->supported['primary_key'] = true;
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| | | $this->supported['result_introspection'] = true;
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| | | $this->supported['prepared_statements'] = 'emulated';
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| | | $this->supported['identifier_quoting'] = true;
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| | | $this->supported['pattern_escaping'] = true;
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| | | $this->supported['new_link'] = true;
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| | |
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| | | $this->options['default_table_type'] = '';
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| | | }
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| | |
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| | | // }}}
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| | | // {{{ errorInfo()
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| | |
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| | | /**
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| | | * This method is used to collect information about an error
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| | | *
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| | | * @param integer $error
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| | | * @return array
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| | | * @access public
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| | | */
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| | | function errorInfo($error = null)
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| | | {
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| | | if ($this->connection) {
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| | | $native_code = @mysql_errno($this->connection);
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| | | $native_msg = @mysql_error($this->connection);
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| | | } else {
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| | | $native_code = @mysql_errno();
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| | | $native_msg = @mysql_error();
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| | | }
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| | | if (is_null($error)) {
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| | | static $ecode_map;
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| | | if (empty($ecode_map)) {
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| | | $ecode_map = array(
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| | | 1000 => MDB2_ERROR_INVALID, //hashchk
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| | | 1001 => MDB2_ERROR_INVALID, //isamchk
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| | | 1004 => MDB2_ERROR_CANNOT_CREATE,
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| | | 1005 => MDB2_ERROR_CANNOT_CREATE,
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| | | 1006 => MDB2_ERROR_CANNOT_CREATE,
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| | | 1007 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1008 => MDB2_ERROR_CANNOT_DROP,
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| | | 1009 => MDB2_ERROR_CANNOT_DROP,
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| | | 1010 => MDB2_ERROR_CANNOT_DROP,
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| | | 1011 => MDB2_ERROR_CANNOT_DELETE,
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| | | 1022 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1029 => MDB2_ERROR_NOT_FOUND,
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| | | 1032 => MDB2_ERROR_NOT_FOUND,
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| | | 1044 => MDB2_ERROR_ACCESS_VIOLATION,
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| | | 1045 => MDB2_ERROR_ACCESS_VIOLATION,
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| | | 1046 => MDB2_ERROR_NODBSELECTED,
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| | | 1048 => MDB2_ERROR_CONSTRAINT,
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| | | 1049 => MDB2_ERROR_NOSUCHDB,
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| | | 1050 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1051 => MDB2_ERROR_NOSUCHTABLE,
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| | | 1054 => MDB2_ERROR_NOSUCHFIELD,
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| | | 1060 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1061 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1062 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1064 => MDB2_ERROR_SYNTAX,
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| | | 1067 => MDB2_ERROR_INVALID,
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| | | 1072 => MDB2_ERROR_NOT_FOUND,
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| | | 1086 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1091 => MDB2_ERROR_NOT_FOUND,
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| | | 1100 => MDB2_ERROR_NOT_LOCKED,
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| | | 1109 => MDB2_ERROR_NOT_FOUND,
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| | | 1125 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1136 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
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| | | 1138 => MDB2_ERROR_INVALID,
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| | | 1142 => MDB2_ERROR_ACCESS_VIOLATION,
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| | | 1143 => MDB2_ERROR_ACCESS_VIOLATION,
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| | | 1146 => MDB2_ERROR_NOSUCHTABLE,
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| | | 1149 => MDB2_ERROR_SYNTAX,
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| | | 1169 => MDB2_ERROR_CONSTRAINT,
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| | | 1176 => MDB2_ERROR_NOT_FOUND,
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| | | 1177 => MDB2_ERROR_NOSUCHTABLE,
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| | | 1213 => MDB2_ERROR_DEADLOCK,
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| | | 1216 => MDB2_ERROR_CONSTRAINT,
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| | | 1217 => MDB2_ERROR_CONSTRAINT,
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| | | 1227 => MDB2_ERROR_ACCESS_VIOLATION,
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| | | 1299 => MDB2_ERROR_INVALID_DATE,
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| | | 1300 => MDB2_ERROR_INVALID,
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| | | 1304 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1305 => MDB2_ERROR_NOT_FOUND,
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| | | 1306 => MDB2_ERROR_CANNOT_DROP,
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| | | 1307 => MDB2_ERROR_CANNOT_CREATE,
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| | | 1334 => MDB2_ERROR_CANNOT_ALTER,
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| | | 1339 => MDB2_ERROR_NOT_FOUND,
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| | | 1356 => MDB2_ERROR_INVALID,
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| | | 1359 => MDB2_ERROR_ALREADY_EXISTS,
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| | | 1360 => MDB2_ERROR_NOT_FOUND,
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| | | 1363 => MDB2_ERROR_NOT_FOUND,
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| | | 1365 => MDB2_ERROR_DIVZERO,
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| | | 1451 => MDB2_ERROR_CONSTRAINT,
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| | | 1452 => MDB2_ERROR_CONSTRAINT,
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| | | 1542 => MDB2_ERROR_CANNOT_DROP,
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| | | 1546 => MDB2_ERROR_CONSTRAINT,
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| | | 1582 => MDB2_ERROR_CONSTRAINT,
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| | | );
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| | | }
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| | | if ($this->options['portability'] & MDB2_PORTABILITY_ERRORS) {
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| | | $ecode_map[1022] = MDB2_ERROR_CONSTRAINT;
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| | | $ecode_map[1048] = MDB2_ERROR_CONSTRAINT_NOT_NULL;
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| | | $ecode_map[1062] = MDB2_ERROR_CONSTRAINT;
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| | | } else {
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| | | // Doing this in case mode changes during runtime.
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| | | $ecode_map[1022] = MDB2_ERROR_ALREADY_EXISTS;
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| | | $ecode_map[1048] = MDB2_ERROR_CONSTRAINT;
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| | | $ecode_map[1062] = MDB2_ERROR_ALREADY_EXISTS;
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| | | }
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| | | if (isset($ecode_map[$native_code])) {
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| | | $error = $ecode_map[$native_code];
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| | | }
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| | | }
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| | | return array($error, $native_code, $native_msg);
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| | | }
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| | |
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| | | // }}}
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| | | // {{{ escape()
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| | |
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| | | /**
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| | | * Quotes a string so it can be safely used in a query. It will quote
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| | | * the text so it can safely be used within a query.
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| | | *
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| | | * @param string the input string to quote
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| | | * @param bool escape wildcards
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| | | *
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| | | * @return string quoted string
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| | | *
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| | | * @access public
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| | | */
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| | | function escape($text, $escape_wildcards = false)
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| | | {
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| | | if ($escape_wildcards) {
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| | | $text = $this->escapePattern($text);
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| | | }
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| | | $connection = $this->getConnection();
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| | | if (PEAR::isError($connection)) {
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| | | return $connection;
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| | | }
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| | | $text = @mysql_real_escape_string($text, $connection);
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| | | return $text;
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| | | }
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| | |
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| | | // }}}
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| | | // {{{ beginTransaction()
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| | |
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| | | /**
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| | | * Start a transaction or set a savepoint.
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| | | *
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| | | * @param string name of a savepoint to set
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| | | * @return mixed MDB2_OK on success, a MDB2 error on failure
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| | | *
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| | | * @access public
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| | | */
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| | | function beginTransaction($savepoint = null)
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| | | {
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| | | $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
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| | | $this->_getServerCapabilities();
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| | | if (!is_null($savepoint)) {
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| | | if (!$this->supports('savepoints')) {
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| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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| | | 'savepoints are not supported', __FUNCTION__);
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| | | }
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| | | if (!$this->in_transaction) {
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| | | return $this->raiseError(MDB2_ERROR_INVALID, null, null,
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| | | 'savepoint cannot be released when changes are auto committed', __FUNCTION__);
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| | | }
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| | | $query = 'SAVEPOINT '.$savepoint;
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| | | return $this->_doQuery($query, true);
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| | | } elseif ($this->in_transaction) {
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| | | return MDB2_OK; //nothing to do
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| | | }
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| | | if (!$this->destructor_registered && $this->opened_persistent) {
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| | | $this->destructor_registered = true;
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| | | register_shutdown_function('MDB2_closeOpenTransactions');
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| | | }
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| | | $query = $this->start_transaction ? 'START TRANSACTION' : 'SET AUTOCOMMIT = 1';
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| | | $result =& $this->_doQuery($query, true);
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| | | if (PEAR::isError($result)) {
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| | | return $result;
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| | | }
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| | | $this->in_transaction = true;
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| | | return MDB2_OK;
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| | | }
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| | |
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| | | // }}}
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| | | // {{{ commit()
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| | |
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| | | /**
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| | | * Commit the database changes done during a transaction that is in
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| | | * progress or release a savepoint. This function may only be called when
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| | | * auto-committing is disabled, otherwise it will fail. Therefore, a new
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| | | * transaction is implicitly started after committing the pending changes.
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| | | *
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| | | * @param string name of a savepoint to release
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| | | * @return mixed MDB2_OK on success, a MDB2 error on failure
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| | | *
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| | | * @access public
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| | | */
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| | | function commit($savepoint = null)
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| | | {
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| | | $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
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| | | if (!$this->in_transaction) {
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| | | return $this->raiseError(MDB2_ERROR_INVALID, null, null,
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|---|
| | | 'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__);
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| | | }
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|---|
| | | if (!is_null($savepoint)) {
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| | | if (!$this->supports('savepoints')) {
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|---|
| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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| | | 'savepoints are not supported', __FUNCTION__);
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|---|
| | | }
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|---|
| | | $server_info = $this->getServerVersion();
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| | | if (version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '5.0.3', '<')) {
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| | | return MDB2_OK;
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| | | }
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| | | $query = 'RELEASE SAVEPOINT '.$savepoint;
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| | | return $this->_doQuery($query, true);
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| | | }
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| | |
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| | | if (!$this->supports('transactions')) {
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| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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| | | 'transactions are not supported', __FUNCTION__);
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| | | }
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| | |
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| | | $result =& $this->_doQuery('COMMIT', true);
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| | | if (PEAR::isError($result)) {
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| | | return $result;
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| | | }
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|---|
| | | if (!$this->start_transaction) {
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| | | $query = 'SET AUTOCOMMIT = 0';
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|---|
| | | $result =& $this->_doQuery($query, true);
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|---|
| | | if (PEAR::isError($result)) {
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| | | return $result;
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|---|
| | | }
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|---|
| | | }
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|---|
| | | $this->in_transaction = false;
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|---|
| | | return MDB2_OK;
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|---|
| | | }
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|---|
| | |
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|---|
| | | // }}}
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|---|
| | | // {{{ rollback()
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|---|
| | |
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|---|
| | | /**
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| | | * Cancel any database changes done during a transaction or since a specific
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|---|
| | | * savepoint that is in progress. This function may only be called when
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|---|
| | | * auto-committing is disabled, otherwise it will fail. Therefore, a new
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|---|
| | | * transaction is implicitly started after canceling the pending changes.
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|---|
| | | *
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| | | * @param string name of a savepoint to rollback to
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|---|
| | | * @return mixed MDB2_OK on success, a MDB2 error on failure
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|---|
| | | *
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| | | * @access public
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|---|
| | | */
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|---|
| | | function rollback($savepoint = null)
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|---|
| | | {
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| | | $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
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|---|
| | | if (!$this->in_transaction) {
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| | | return $this->raiseError(MDB2_ERROR_INVALID, null, null,
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|---|
| | | 'rollback cannot be done changes are auto committed', __FUNCTION__);
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|---|
| | | }
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|---|
| | | if (!is_null($savepoint)) {
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|---|
| | | if (!$this->supports('savepoints')) {
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|---|
| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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|---|
| | | 'savepoints are not supported', __FUNCTION__);
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|---|
| | | }
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|---|
| | | $query = 'ROLLBACK TO SAVEPOINT '.$savepoint;
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|---|
| | | return $this->_doQuery($query, true);
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|---|
| | | }
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|---|
| | |
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|---|
| | | $query = 'ROLLBACK';
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|---|
| | | $result =& $this->_doQuery($query, true);
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|---|
| | | if (PEAR::isError($result)) {
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|---|
| | | return $result;
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|---|
| | | }
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|---|
| | | if (!$this->start_transaction) {
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|---|
| | | $query = 'SET AUTOCOMMIT = 0';
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|---|
| | | $result =& $this->_doQuery($query, true);
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | $this->in_transaction = false;
|
|---|
| | | return MDB2_OK;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ function setTransactionIsolation()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Set the transacton isolation level.
|
|---|
| | | *
|
|---|
| | | * @param string standard isolation level
|
|---|
| | | * READ UNCOMMITTED (allows dirty reads)
|
|---|
| | | * READ COMMITTED (prevents dirty reads)
|
|---|
| | | * REPEATABLE READ (prevents nonrepeatable reads)
|
|---|
| | | * SERIALIZABLE (prevents phantom reads)
|
|---|
| | | * @return mixed MDB2_OK on success, a MDB2 error on failure
|
|---|
| | | *
|
|---|
| | | * @access public
|
|---|
| | | * @since 2.1.1
|
|---|
| | | */
|
|---|
| | | function setTransactionIsolation($isolation)
|
|---|
| | | {
|
|---|
| | | $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
|
|---|
| | | if (!$this->supports('transactions')) {
|
|---|
| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|---|
| | | 'transactions are not supported', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | switch ($isolation) {
|
|---|
| | | case 'READ UNCOMMITTED':
|
|---|
| | | case 'READ COMMITTED':
|
|---|
| | | case 'REPEATABLE READ':
|
|---|
| | | case 'SERIALIZABLE':
|
|---|
| | | break;
|
|---|
| | | default:
|
|---|
| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|---|
| | | 'isolation level is not supported: '.$isolation, __FUNCTION__);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $query = "SET SESSION TRANSACTION ISOLATION LEVEL $isolation";
|
|---|
| | | return $this->_doQuery($query, true);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ 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, $this->dsn)) == 0
|
|---|
| | | if (MDB2::areEquals($this->connected_dsn, $this->dsn)
|
|---|
| | | && $this->opened_persistent == $this->options['persistent']
|
|---|
| | | && $this->connected_database_name == $this->database_name
|
|---|
| | | ) {
|
|---|
| | | return MDB2_OK;
|
|---|
| | | }
|
|---|
| | | $this->disconnect(false);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if (!PEAR::loadExtension($this->phptype)) {
|
|---|
| | | return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
|
|---|
| | | 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $params = array();
|
|---|
| | | if ($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';
|
|---|
| | |
|
|---|
| | | $connection = @call_user_func_array($connect_function, $params);
|
|---|
| | | if (!$connection) {
|
|---|
| | | if (($err = @mysql_error()) != '') {
|
|---|
| | | return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
|
|---|
| | | $err, __FUNCTION__);
|
|---|
| | | } else {
|
|---|
| | | return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
|
|---|
| | | 'unable to establish a connection', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if (!empty($this->dsn['charset'])) {
|
|---|
| | | $result = $this->setCharset($this->dsn['charset'], $connection);
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $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'] : $this->phptype;
|
|---|
| | |
|
|---|
| | | if ($this->database_name) {
|
|---|
| | | if ($this->database_name != $this->connected_database_name) {
|
|---|
| | | if (!@mysql_select_db($this->database_name, $connection)) {
|
|---|
| | | $err = $this->raiseError(null, null, null,
|
|---|
| | | 'Could not select the database: '.$this->database_name, __FUNCTION__);
|
|---|
| | | return $err;
|
|---|
| | | }
|
|---|
| | | $this->connected_database_name = $this->database_name;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $this->supported['transactions'] = $this->options['use_transactions'];
|
|---|
| | | if ($this->options['default_table_type']) {
|
|---|
| | | switch (strtoupper($this->options['default_table_type'])) {
|
|---|
| | | case 'BLACKHOLE':
|
|---|
| | | case 'MEMORY':
|
|---|
| | | case 'ARCHIVE':
|
|---|
| | | case 'CSV':
|
|---|
| | | case 'HEAP':
|
|---|
| | | case 'ISAM':
|
|---|
| | | case 'MERGE':
|
|---|
| | | case 'MRG_ISAM':
|
|---|
| | | case 'ISAM':
|
|---|
| | | case 'MRG_MYISAM':
|
|---|
| | | case 'MYISAM':
|
|---|
| | | $this->supported['transactions'] = false;
|
|---|
| | | $this->warnings[] = $this->options['default_table_type'] .
|
|---|
| | | ' is not a supported default table type';
|
|---|
| | | break;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | |
|---|
| | | $this->_getServerCapabilities();
|
|---|
| | |
|
|---|
| | | return MDB2_OK;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ setCharset()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Set the charset on the current connection
|
|---|
| | | *
|
|---|
| | | * @param string charset
|
|---|
| | | * @param resource connection handle
|
|---|
| | | *
|
|---|
| | | * @return true on success, MDB2 Error Object on failure
|
|---|
| | | */
|
|---|
| | | function setCharset($charset, $connection = null)
|
|---|
| | | {
|
|---|
| | | if (is_null($connection)) {
|
|---|
| | | $connection = $this->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | $query = "SET NAMES '".mysql_real_escape_string($charset, $connection)."'";
|
|---|
| | | return $this->_doQuery($query, true, $connection);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ disconnect()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Log out and disconnect from the database.
|
|---|
| | | *
|
|---|
| | | * @param boolean $force if the disconnect should be forced even if the
|
|---|
| | | * connection is opened persistently
|
|---|
| | | * @return mixed true on success, false if not connected and error
|
|---|
| | | * object on error
|
|---|
| | | * @access public
|
|---|
| | | */
|
|---|
| | | function disconnect($force = true)
|
|---|
| | | {
|
|---|
| | | if (is_resource($this->connection)) {
|
|---|
| | | if ($this->in_transaction) {
|
|---|
| | | $dsn = $this->dsn;
|
|---|
| | | $database_name = $this->database_name;
|
|---|
| | | $persistent = $this->options['persistent'];
|
|---|
| | | $this->dsn = $this->connected_dsn;
|
|---|
| | | $this->database_name = $this->connected_database_name;
|
|---|
| | | $this->options['persistent'] = $this->opened_persistent;
|
|---|
| | | $this->rollback();
|
|---|
| | | $this->dsn = $dsn;
|
|---|
| | | $this->database_name = $database_name;
|
|---|
| | | $this->options['persistent'] = $persistent;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if (!$this->opened_persistent || $force) {
|
|---|
| | | @mysql_close($this->connection);
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | return parent::disconnect($force);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ _doQuery()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Execute a query
|
|---|
| | | * @param string $query query
|
|---|
| | | * @param boolean $is_manip if the query is a manipulation query
|
|---|
| | | * @param resource $connection
|
|---|
| | | * @param string $database_name
|
|---|
| | | * @return result or error object
|
|---|
| | | * @access protected
|
|---|
| | | */
|
|---|
| | | function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null)
|
|---|
| | | {
|
|---|
| | | $this->last_query = $query;
|
|---|
| | | $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre'));
|
|---|
| | | if ($result) {
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | $query = $result;
|
|---|
| | | }
|
|---|
| | | if ($this->options['disable_query']) {
|
|---|
| | | $result = $is_manip ? 0 : null;
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if (is_null($connection)) {
|
|---|
| | | $connection = $this->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | if (is_null($database_name)) {
|
|---|
| | | $database_name = $this->database_name;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if ($database_name) {
|
|---|
| | | if ($database_name != $this->connected_database_name) {
|
|---|
| | | if (!@mysql_select_db($database_name, $connection)) {
|
|---|
| | | $err = $this->raiseError(null, null, null,
|
|---|
| | | 'Could not select the database: '.$database_name, __FUNCTION__);
|
|---|
| | | return $err;
|
|---|
| | | }
|
|---|
| | | $this->connected_database_name = $database_name;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $function = $this->options['result_buffering']
|
|---|
| | | ? 'mysql_query' : 'mysql_unbuffered_query';
|
|---|
| | | $result = @$function($query, $connection);
|
|---|
| | | if (!$result) {
|
|---|
| | | $err =& $this->raiseError(null, null, null,
|
|---|
| | | 'Could not execute statement', __FUNCTION__);
|
|---|
| | | return $err;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result));
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ _affectedRows()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Returns the number of rows affected
|
|---|
| | | *
|
|---|
| | | * @param resource $result
|
|---|
| | | * @param resource $connection
|
|---|
| | | * @return mixed MDB2 Error Object or the number of rows affected
|
|---|
| | | * @access private
|
|---|
| | | */
|
|---|
| | | function _affectedRows($connection, $result = null)
|
|---|
| | | {
|
|---|
| | | if (is_null($connection)) {
|
|---|
| | | $connection = $this->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | return @mysql_affected_rows($connection);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ _modifyQuery()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Changes a query string for various DBMS specific reasons
|
|---|
| | | *
|
|---|
| | | * @param string $query query to modify
|
|---|
| | | * @param boolean $is_manip if it is a DML query
|
|---|
| | | * @param integer $limit limit the number of rows
|
|---|
| | | * @param integer $offset start reading from given offset
|
|---|
| | | * @return string modified query
|
|---|
| | | * @access protected
|
|---|
| | | */
|
|---|
| | | function _modifyQuery($query, $is_manip, $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);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // LIMIT doesn't always come last in the query
|
|---|
| | | // @see http://dev.mysql.com/doc/refman/5.0/en/select.html
|
|---|
| | | $after = '';
|
|---|
| | | if (preg_match('/(\s+INTO\s+(?:OUT|DUMP)FILE\s.*)$/ims', $query, $matches)) {
|
|---|
| | | $after = $matches[0];
|
|---|
| | | $query = preg_replace('/(\s+INTO\s+(?:OUT|DUMP)FILE\s.*)$/ims', '', $query);
|
|---|
| | | } elseif (preg_match('/(\s+FOR\s+UPDATE\s*)$/i', $query, $matches)) {
|
|---|
| | | $after = $matches[0];
|
|---|
| | | $query = preg_replace('/(\s+FOR\s+UPDATE\s*)$/im', '', $query);
|
|---|
| | | } elseif (preg_match('/(\s+LOCK\s+IN\s+SHARE\s+MODE\s*)$/im', $query, $matches)) {
|
|---|
| | | $after = $matches[0];
|
|---|
| | | $query = preg_replace('/(\s+LOCK\s+IN\s+SHARE\s+MODE\s*)$/im', '', $query);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if ($is_manip) {
|
|---|
| | | return $query . " LIMIT $limit" . $after;
|
|---|
| | | } else {
|
|---|
| | | return $query . " LIMIT $offset, $limit" . $after;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | return $query;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ getServerVersion()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * return version information about the server
|
|---|
| | | *
|
|---|
| | | * @param bool $native determines if the raw version string should be returned
|
|---|
| | | * @return mixed array/string with version information or MDB2 error object
|
|---|
| | | * @access public
|
|---|
| | | */
|
|---|
| | | function getServerVersion($native = false)
|
|---|
| | | {
|
|---|
| | | $connection = $this->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | | if ($this->connected_server_info) {
|
|---|
| | | $server_info = $this->connected_server_info;
|
|---|
| | | } else {
|
|---|
| | | $server_info = @mysql_get_server_info($connection);
|
|---|
| | | }
|
|---|
| | | if (!$server_info) {
|
|---|
| | | return $this->raiseError(null, null, null,
|
|---|
| | | 'Could not get server information', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | // cache server_info
|
|---|
| | | $this->connected_server_info = $server_info;
|
|---|
| | | if (!$native) {
|
|---|
| | | $tmp = explode('.', $server_info, 3);
|
|---|
| | | if (isset($tmp[2]) && strpos($tmp[2], '-')) {
|
|---|
| | | $tmp2 = explode('-', @$tmp[2], 2);
|
|---|
| | | } else {
|
|---|
| | | $tmp2[0] = isset($tmp[2]) ? $tmp[2] : null;
|
|---|
| | | $tmp2[1] = null;
|
|---|
| | | }
|
|---|
| | | $server_info = array(
|
|---|
| | | 'major' => isset($tmp[0]) ? $tmp[0] : null,
|
|---|
| | | 'minor' => isset($tmp[1]) ? $tmp[1] : null,
|
|---|
| | | 'patch' => $tmp2[0],
|
|---|
| | | 'extra' => $tmp2[1],
|
|---|
| | | 'native' => $server_info,
|
|---|
| | | );
|
|---|
| | | }
|
|---|
| | | return $server_info;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ _getServerCapabilities()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Fetch some information about the server capabilities
|
|---|
| | | * (transactions, subselects, prepared statements, etc).
|
|---|
| | | *
|
|---|
| | | * @access private
|
|---|
| | | */
|
|---|
| | | function _getServerCapabilities()
|
|---|
| | | {
|
|---|
| | | if (!$this->server_capabilities_checked) {
|
|---|
| | | $this->server_capabilities_checked = true;
|
|---|
| | |
|
|---|
| | | //set defaults
|
|---|
| | | $this->supported['sub_selects'] = 'emulated';
|
|---|
| | | $this->supported['prepared_statements'] = 'emulated';
|
|---|
| | | $this->start_transaction = false;
|
|---|
| | | $this->varchar_max_length = 255;
|
|---|
| | | |
|---|
| | | $server_info = $this->getServerVersion();
|
|---|
| | | if (is_array($server_info)) {
|
|---|
| | | if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.1.0', '<')) {
|
|---|
| | | $this->supported['sub_selects'] = true;
|
|---|
| | | $this->supported['prepared_statements'] = true;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.0.14', '<')
|
|---|
| | | || !version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.1.1', '<')
|
|---|
| | | ) {
|
|---|
| | | $this->supported['savepoints'] = true;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.0.11', '<')) {
|
|---|
| | | $this->start_transaction = true;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '5.0.3', '<')) {
|
|---|
| | | $this->varchar_max_length = 65532;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ function _skipUserDefinedVariable($query, $position)
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Utility method, used by prepare() to avoid misinterpreting MySQL user |
|---|
| | | * defined variables (SELECT @x:=5) for placeholders.
|
|---|
| | | * Check if the placeholder is a false positive, i.e. if it is an user defined
|
|---|
| | | * variable instead. If so, skip it and advance the position, otherwise
|
|---|
| | | * return the current position, which is valid
|
|---|
| | | *
|
|---|
| | | * @param string $query
|
|---|
| | | * @param integer $position current string cursor position
|
|---|
| | | * @return integer $new_position
|
|---|
| | | * @access protected
|
|---|
| | | */
|
|---|
| | | function _skipUserDefinedVariable($query, $position)
|
|---|
| | | {
|
|---|
| | | $found = strpos(strrev(substr($query, 0, $position)), '@');
|
|---|
| | | if ($found === false) {
|
|---|
| | | return $position;
|
|---|
| | | }
|
|---|
| | | $pos = strlen($query) - strlen(substr($query, $position)) - $found - 1;
|
|---|
| | | $substring = substr($query, $pos, $position - $pos + 2);
|
|---|
| | | if (preg_match('/^@\w+\s*:=$/', $substring)) {
|
|---|
| | | return $position + 1; //found an user defined variable: skip it
|
|---|
| | | }
|
|---|
| | | return $position;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ prepare()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Prepares a query for multiple execution with execute().
|
|---|
| | | * With some database backends, this is emulated.
|
|---|
| | | * prepare() requires a generic query as string like
|
|---|
| | | * 'INSERT INTO numbers VALUES(?,?)' or
|
|---|
| | | * 'INSERT INTO numbers VALUES(:foo,:bar)'.
|
|---|
| | | * The ? and :name and are placeholders which can be set using
|
|---|
| | | * bindParam() and the query can be sent off using the execute() method.
|
|---|
| | | * The allowed format for :name can be set with the 'bindname_format' option.
|
|---|
| | | *
|
|---|
| | | * @param string $query the query to prepare
|
|---|
| | | * @param mixed $types array that contains the types of the placeholders
|
|---|
| | | * @param mixed $result_types array that contains the types of the columns in
|
|---|
| | | * the result set or MDB2_PREPARE_RESULT, if set to
|
|---|
| | | * MDB2_PREPARE_MANIP the query is handled as a manipulation query
|
|---|
| | | * @param mixed $lobs key (field) value (parameter) pair for all lob placeholders
|
|---|
| | | * @return mixed resource handle for the prepared query on success, a MDB2
|
|---|
| | | * error on failure
|
|---|
| | | * @access public
|
|---|
| | | * @see bindParam, execute
|
|---|
| | | */
|
|---|
| | | function &prepare($query, $types = null, $result_types = null, $lobs = array())
|
|---|
| | | {
|
|---|
| | | if ($this->options['emulate_prepared']
|
|---|
| | | || $this->supported['prepared_statements'] !== true
|
|---|
| | | ) {
|
|---|
| | | $obj =& parent::prepare($query, $types, $result_types, $lobs);
|
|---|
| | | return $obj;
|
|---|
| | | }
|
|---|
| | | $is_manip = ($result_types === MDB2_PREPARE_MANIP);
|
|---|
| | | $offset = $this->offset;
|
|---|
| | | $limit = $this->limit;
|
|---|
| | | $this->offset = $this->limit = 0;
|
|---|
| | | $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
|
|---|
| | | $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre'));
|
|---|
| | | if ($result) {
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | $query = $result;
|
|---|
| | | }
|
|---|
| | | $placeholder_type_guess = $placeholder_type = null;
|
|---|
| | | $question = '?';
|
|---|
| | | $colon = ':';
|
|---|
| | | $positions = array();
|
|---|
| | | $position = 0;
|
|---|
| | | while ($position < strlen($query)) {
|
|---|
| | | $q_position = strpos($query, $question, $position);
|
|---|
| | | $c_position = strpos($query, $colon, $position);
|
|---|
| | | if ($q_position && $c_position) {
|
|---|
| | | $p_position = min($q_position, $c_position);
|
|---|
| | | } elseif ($q_position) {
|
|---|
| | | $p_position = $q_position;
|
|---|
| | | } elseif ($c_position) {
|
|---|
| | | $p_position = $c_position;
|
|---|
| | | } else {
|
|---|
| | | break;
|
|---|
| | | }
|
|---|
| | | if (is_null($placeholder_type)) {
|
|---|
| | | $placeholder_type_guess = $query[$p_position];
|
|---|
| | | }
|
|---|
| | | |
|---|
| | | $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position);
|
|---|
| | | if (PEAR::isError($new_pos)) {
|
|---|
| | | return $new_pos;
|
|---|
| | | }
|
|---|
| | | if ($new_pos != $position) {
|
|---|
| | | $position = $new_pos;
|
|---|
| | | continue; //evaluate again starting from the new position
|
|---|
| | | }
|
|---|
| | | |
|---|
| | | //make sure this is not part of an user defined variable
|
|---|
| | | $new_pos = $this->_skipUserDefinedVariable($query, $position);
|
|---|
| | | if ($new_pos != $position) {
|
|---|
| | | $position = $new_pos;
|
|---|
| | | continue; //evaluate again starting from the new position
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if ($query[$position] == $placeholder_type_guess) {
|
|---|
| | | if (is_null($placeholder_type)) {
|
|---|
| | | $placeholder_type = $query[$p_position];
|
|---|
| | | $question = $colon = $placeholder_type;
|
|---|
| | | }
|
|---|
| | | if ($placeholder_type == ':') {
|
|---|
| | | $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s';
|
|---|
| | | $parameter = preg_replace($regexp, '\\1', $query);
|
|---|
| | | if ($parameter === '') {
|
|---|
| | | $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
|
|---|
| | | 'named parameter name must match "bindname_format" option', __FUNCTION__);
|
|---|
| | | return $err;
|
|---|
| | | }
|
|---|
| | | $positions[$p_position] = $parameter;
|
|---|
| | | $query = substr_replace($query, '?', $position, strlen($parameter)+1);
|
|---|
| | | } else {
|
|---|
| | | $positions[$p_position] = count($positions);
|
|---|
| | | }
|
|---|
| | | $position = $p_position + 1;
|
|---|
| | | } else {
|
|---|
| | | $position = $p_position;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | $connection = $this->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | | static $prep_statement_counter = 1;
|
|---|
| | | $statement_name = sprintf($this->options['statement_format'], $this->phptype, sha1(microtime() + mt_rand())) . $prep_statement_counter++;
|
|---|
| | | $query = "PREPARE $statement_name FROM ".$this->quote($query, 'text');
|
|---|
| | | $statement =& $this->_doQuery($query, true, $connection);
|
|---|
| | | if (PEAR::isError($statement)) {
|
|---|
| | | return $statement;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $class_name = 'MDB2_Statement_'.$this->phptype;
|
|---|
| | | $obj = new $class_name($this, $statement_name, $positions, $query, $types, $result_types, $is_manip, $limit, $offset);
|
|---|
| | | $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj));
|
|---|
| | | return $obj;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ 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 {
|
|---|
| | | $type = isset($fields[$name]['type']) ? $fields[$name]['type'] : null;
|
|---|
| | | $value = $this->quote($fields[$name]['value'], $type);
|
|---|
| | | if (PEAR::isError($value)) {
|
|---|
| | | return $value;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | $values.= $value;
|
|---|
| | | if (isset($fields[$name]['key']) && $fields[$name]['key']) {
|
|---|
| | | if ($value === 'NULL') {
|
|---|
| | | return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
|
|---|
| | | 'key value '.$name.' may not be NULL', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | $keys++;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | if ($keys == 0) {
|
|---|
| | | return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
|
|---|
| | | 'not specified which fields are keys', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $connection = $this->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $query = "REPLACE INTO $table ($query) VALUES ($values)";
|
|---|
| | | $result =& $this->_doQuery($query, true, $connection);
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | return $this->_affectedRows($connection, $result);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ nextID()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Returns the next free id of a sequence
|
|---|
| | | *
|
|---|
| | | * @param string $seq_name name of the sequence
|
|---|
| | | * @param boolean $ondemand when true the sequence is
|
|---|
| | | * automatic created, if it
|
|---|
| | | * not exists
|
|---|
| | | *
|
|---|
| | | * @return mixed MDB2 Error Object or id
|
|---|
| | | * @access public
|
|---|
| | | */
|
|---|
| | | function nextID($seq_name, $ondemand = true)
|
|---|
| | | {
|
|---|
| | | $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
|
|---|
| | | $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true);
|
|---|
| | | $query = "INSERT INTO $sequence_name ($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', null, true);
|
|---|
| | | $result = $this->manager->createSequence($seq_name);
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $this->raiseError($result, null, null,
|
|---|
| | | 'on demand sequence '.$seq_name.' could not be created', __FUNCTION__);
|
|---|
| | | } else {
|
|---|
| | | return $this->nextID($seq_name, false);
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | $value = $this->lastInsertID();
|
|---|
| | | if (is_numeric($value)) {
|
|---|
| | | $query = "DELETE FROM $sequence_name WHERE $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 or fetches the current
|
|---|
| | | * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
|
|---|
| | | *
|
|---|
| | | * @param string $table name of the table into which a new row was inserted
|
|---|
| | | * @param string $field name of the field into which a new row was inserted
|
|---|
| | | * @return mixed MDB2 Error Object or id
|
|---|
| | | * @access public
|
|---|
| | | */
|
|---|
| | | function lastInsertID($table = null, $field = null)
|
|---|
| | | {
|
|---|
| | | // not using mysql_insert_id() due to http://pear.php.net/bugs/bug.php?id=8051
|
|---|
| | | 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 = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
|
|---|
| | | $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true);
|
|---|
| | | $query = "SELECT MAX($seqcol_name) FROM $sequence_name";
|
|---|
| | | return $this->queryOne($query, 'integer');
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * MDB2 MySQL result driver
|
|---|
| | | *
|
|---|
| | | * @package MDB2
|
|---|
| | | * @category Database
|
|---|
| | | * @author Lukas Smith <smith@pooteeweet.org>
|
|---|
| | | */
|
|---|
| | | 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 (!$row) {
|
|---|
| | | if ($this->result === false) {
|
|---|
| | | $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|---|
| | | 'resultset has already been freed', __FUNCTION__);
|
|---|
| | | return $err;
|
|---|
| | | }
|
|---|
| | | $null = null;
|
|---|
| | | return $null;
|
|---|
| | | }
|
|---|
| | | $mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL;
|
|---|
| | | $rtrim = false;
|
|---|
| | | if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) {
|
|---|
| | | if (empty($this->types)) {
|
|---|
| | | $mode += MDB2_PORTABILITY_RTRIM;
|
|---|
| | | } else {
|
|---|
| | | $rtrim = true;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | if ($mode) {
|
|---|
| | | $this->db->_fixResultArrayValues($row, $mode);
|
|---|
| | | }
|
|---|
| | | if (!empty($this->types)) {
|
|---|
| | | $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
|
|---|
| | | }
|
|---|
| | | if (!empty($this->values)) {
|
|---|
| | | $this->_assignBindColumns($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 Array variable that holds the names of columns as keys
|
|---|
| | | * or an MDB2 error on failure.
|
|---|
| | | * Some DBMS may not return any columns when the result set
|
|---|
| | | * does not contain any rows.
|
|---|
| | | * @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($cols)) {
|
|---|
| | | if ($this->result === false) {
|
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|---|
| | | 'resultset has already been freed', __FUNCTION__);
|
|---|
| | | } elseif (is_null($this->result)) {
|
|---|
| | | return count($this->types);
|
|---|
| | | }
|
|---|
| | | return $this->db->raiseError(null, null, null,
|
|---|
| | | 'Could not get column count', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | return $cols;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ free()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Free the internal resources associated with result.
|
|---|
| | | *
|
|---|
| | | * @return boolean true on success, false if result is invalid
|
|---|
| | | * @access public
|
|---|
| | | */
|
|---|
| | | function free()
|
|---|
| | | {
|
|---|
| | | if (is_resource($this->result) && $this->db->connection) {
|
|---|
| | | $free = @mysql_free_result($this->result);
|
|---|
| | | if ($free === false) {
|
|---|
| | | return $this->db->raiseError(null, null, null,
|
|---|
| | | 'Could not free result', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | $this->result = false;
|
|---|
| | | return MDB2_OK;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * MDB2 MySQL buffered result driver
|
|---|
| | | *
|
|---|
| | | * @package MDB2
|
|---|
| | | * @category Database
|
|---|
| | | * @author Lukas Smith <smith@pooteeweet.org>
|
|---|
| | | */
|
|---|
| | | 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, $rownum)) {
|
|---|
| | | if ($this->result === false) {
|
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|---|
| | | 'resultset has already been freed', __FUNCTION__);
|
|---|
| | | } elseif (is_null($this->result)) {
|
|---|
| | | return MDB2_OK;
|
|---|
| | | }
|
|---|
| | | return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
|
|---|
| | | 'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | $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 (false === $rows) {
|
|---|
| | | if (false === $this->result) {
|
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|---|
| | | 'resultset has already been freed', __FUNCTION__);
|
|---|
| | | } elseif (is_null($this->result)) {
|
|---|
| | | return 0;
|
|---|
| | | }
|
|---|
| | | return $this->db->raiseError(null, null, null,
|
|---|
| | | 'Could not get row count', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | return $rows;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * MDB2 MySQL statement driver
|
|---|
| | | *
|
|---|
| | | * @package MDB2
|
|---|
| | | * @category Database
|
|---|
| | | * @author Lukas Smith <smith@pooteeweet.org>
|
|---|
| | | */
|
|---|
| | | class MDB2_Statement_mysql extends MDB2_Statement_Common
|
|---|
| | | {
|
|---|
| | | // {{{ _execute()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Execute a prepared query statement helper method.
|
|---|
| | | *
|
|---|
| | | * @param mixed $result_class string which specifies which result class to use
|
|---|
| | | * @param mixed $result_wrap_class string which specifies which class to wrap results in
|
|---|
| | | * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
|
|---|
| | | * @access private
|
|---|
| | | */
|
|---|
| | | function &_execute($result_class = true, $result_wrap_class = false)
|
|---|
| | | {
|
|---|
| | | if (is_null($this->statement)) {
|
|---|
| | | $result =& parent::_execute($result_class, $result_wrap_class);
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | $this->db->last_query = $this->query;
|
|---|
| | | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'pre', 'parameters' => $this->values));
|
|---|
| | | if ($this->db->getOption('disable_query')) {
|
|---|
| | | $result = $this->is_manip ? 0 : null;
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $connection = $this->db->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $query = 'EXECUTE '.$this->statement;
|
|---|
| | | if (!empty($this->positions)) {
|
|---|
| | | $parameters = array();
|
|---|
| | | foreach ($this->positions as $parameter) {
|
|---|
| | | if (!array_key_exists($parameter, $this->values)) {
|
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
|
|---|
| | | 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | $value = $this->values[$parameter];
|
|---|
| | | $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null;
|
|---|
| | | if (is_resource($value) || $type == 'clob' || $type == 'blob' && $this->db->options['lob_allow_url_include']) {
|
|---|
| | | if (!is_resource($value) && preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) {
|
|---|
| | | if ($match[1] == 'file://') {
|
|---|
| | | $value = $match[2];
|
|---|
| | | }
|
|---|
| | | $value = @fopen($value, 'r');
|
|---|
| | | $close = true;
|
|---|
| | | }
|
|---|
| | | if (is_resource($value)) {
|
|---|
| | | $data = '';
|
|---|
| | | while (!@feof($value)) {
|
|---|
| | | $data.= @fread($value, $this->db->options['lob_buffer_length']);
|
|---|
| | | }
|
|---|
| | | if ($close) {
|
|---|
| | | @fclose($value);
|
|---|
| | | }
|
|---|
| | | $value = $data;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | $quoted = $this->db->quote($value, $type);
|
|---|
| | | if (PEAR::isError($quoted)) {
|
|---|
| | | return $quoted;
|
|---|
| | | }
|
|---|
| | | $param_query = 'SET @'.$parameter.' = '.$quoted;
|
|---|
| | | $result = $this->db->_doQuery($param_query, true, $connection);
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | $query.= ' USING @'.implode(', @', array_values($this->positions));
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $result = $this->db->_doQuery($query, $this->is_manip, $connection);
|
|---|
| | | if (PEAR::isError($result)) {
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | if ($this->is_manip) {
|
|---|
| | | $affected_rows = $this->db->_affectedRows($connection, $result);
|
|---|
| | | return $affected_rows;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | $result =& $this->db->_wrapResult($result, $this->result_types,
|
|---|
| | | $result_class, $result_wrap_class, $this->limit, $this->offset);
|
|---|
| | | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'post', 'result' => $result));
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | // }}}
|
|---|
| | | // {{{ free()
|
|---|
| | |
|
|---|
| | | /**
|
|---|
| | | * Release resources allocated for the specified prepared query.
|
|---|
| | | *
|
|---|
| | | * @return mixed MDB2_OK on success, a MDB2 error on failure
|
|---|
| | | * @access public
|
|---|
| | | */
|
|---|
| | | function free()
|
|---|
| | | {
|
|---|
| | | if (is_null($this->positions)) {
|
|---|
| | | return $this->db->raiseError(MDB2_ERROR, null, null,
|
|---|
| | | 'Prepared statement has already been freed', __FUNCTION__);
|
|---|
| | | }
|
|---|
| | | $result = MDB2_OK;
|
|---|
| | |
|
|---|
| | | if (!is_null($this->statement)) {
|
|---|
| | | $connection = $this->db->getConnection();
|
|---|
| | | if (PEAR::isError($connection)) {
|
|---|
| | | return $connection;
|
|---|
| | | }
|
|---|
| | | $query = 'DEALLOCATE PREPARE '.$this->statement;
|
|---|
| | | $result = $this->db->_doQuery($query, true, $connection);
|
|---|
| | | }
|
|---|
| | |
|
|---|
| | | parent::free();
|
|---|
| | | return $result;
|
|---|
| | | }
|
|---|
| | | }
|
|---|
| | | <?php |
|---|
| | | // vim: set et ts=4 sw=4 fdm=marker: |
|---|
| | | // +----------------------------------------------------------------------+ |
|---|
| | | // | 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 1.208 2008/03/13 03:31:55 afz Exp $ |
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| | | // |
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| | | |
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| | | /** |
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| | | * MDB2 MySQL driver |
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| | | * |
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| | | * @package MDB2 |
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| | | * @category Database |
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| | | * @author Lukas Smith <smith@pooteeweet.org> |
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| | | */ |
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| | | class MDB2_Driver_mysql extends MDB2_Driver_Common |
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| | | { |
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| | | // {{{ properties |
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| | | |
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| | | var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => '\\', 'escape_pattern' => '\\'); |
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| | | |
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| | | var $identifier_quoting = array('start' => '`', 'end' => '`', 'escape' => '`'); |
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| | | |
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| | | var $sql_comments = array( |
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| | | array('start' => '-- ', 'end' => "\n", 'escape' => false), |
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| | | array('start' => '#', 'end' => "\n", 'escape' => false), |
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| | | array('start' => '/*', 'end' => '*/', 'escape' => false), |
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| | | ); |
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| | | |
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| | | var $server_capabilities_checked = false; |
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| | | |
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| | | var $start_transaction = false; |
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| | | |
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| | | var $varchar_max_length = 255; |
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| | | |
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| | | // }}} |
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| | | // {{{ constructor |
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| | | |
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| | | /** |
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| | | * Constructor |
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| | | */ |
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| | | function __construct() |
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| | | { |
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| | | parent::__construct(); |
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| | | |
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| | | $this->phptype = 'mysql'; |
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| | | $this->dbsyntax = 'mysql'; |
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| | | |
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| | | $this->supported['sequences'] = 'emulated'; |
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| | | $this->supported['indexes'] = true; |
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| | | $this->supported['affected_rows'] = true; |
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| | | $this->supported['transactions'] = false; |
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| | | $this->supported['savepoints'] = false; |
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| | | $this->supported['summary_functions'] = true; |
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| | | $this->supported['order_by_text'] = true; |
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| | | $this->supported['current_id'] = 'emulated'; |
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| | | $this->supported['limit_queries'] = true; |
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| | | $this->supported['LOBs'] = true; |
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| | | $this->supported['replace'] = true; |
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| | | $this->supported['sub_selects'] = 'emulated'; |
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| | | $this->supported['triggers'] = false; |
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| | | $this->supported['auto_increment'] = true; |
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| | | $this->supported['primary_key'] = true; |
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| | | $this->supported['result_introspection'] = true; |
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| | | $this->supported['prepared_statements'] = 'emulated'; |
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| | | $this->supported['identifier_quoting'] = true; |
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| | | $this->supported['pattern_escaping'] = true; |
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| | | $this->supported['new_link'] = true; |
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| | | |
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| | | $this->options['DBA_username'] = false; |
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| | | $this->options['DBA_password'] = false; |
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| | | $this->options['default_table_type'] = ''; |
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| | | $this->options['max_identifiers_length'] = 64; |
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| | | |
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| | | $this->_reCheckSupportedOptions(); |
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| | | } |
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| | | |
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| | | // }}} |
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| | | // {{{ _reCheckSupportedOptions() |
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| | | |
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| | | /** |
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| | | * If the user changes certain options, other capabilities may depend |
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| | | * on the new settings, so we need to check them (again). |
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| | | * |
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| | | * @access private |
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| | | */ |
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| | | function _reCheckSupportedOptions() |
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| | | { |
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| | | $this->supported['transactions'] = $this->options['use_transactions']; |
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| | | $this->supported['savepoints'] = $this->options['use_transactions']; |
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| | | if ($this->options['default_table_type']) { |
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| | | switch (strtoupper($this->options['default_table_type'])) { |
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| | | case 'BLACKHOLE': |
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| | | case 'MEMORY': |
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| | | case 'ARCHIVE': |
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| | | case 'CSV': |
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| | | case 'HEAP': |
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| | | case 'ISAM': |
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| | | case 'MERGE': |
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| | | case 'MRG_ISAM': |
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| | | case 'ISAM': |
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| | | case 'MRG_MYISAM': |
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| | | case 'MYISAM': |
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| | | $this->supported['savepoints'] = false; |
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| | | $this->supported['transactions'] = false; |
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| | | $this->warnings[] = $this->options['default_table_type'] . |
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| | | ' is not a supported default table type'; |
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| | | break; |
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| | | } |
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| | | } |
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| | | } |
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| | | |
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| | | // }}} |
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| | | // {{{ function setOption($option, $value) |
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| | | |
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| | | /** |
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| | | * set the option for the db class |
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| | | * |
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| | | * @param string option name |
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| | | * @param mixed value for the option |
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| | | * |
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| | | * @return mixed MDB2_OK or MDB2 Error Object |
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| | | * |
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| | | * @access public |
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| | | */ |
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| | | function setOption($option, $value) |
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| | | { |
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| | | $res = parent::setOption($option, $value); |
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| | | $this->_reCheckSupportedOptions(); |
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| | | } |
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| | | |
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| | | // }}} |
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| | | // {{{ errorInfo() |
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| | | |
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| | | /** |
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| | | * This method is used to collect information about an error |
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| | | * |
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| | | * @param integer $error |
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| | | * @return array |
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| | | * @access public |
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| | | */ |
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| | | function errorInfo($error = null) |
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| | | { |
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| | | if ($this->connection) { |
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| | | $native_code = @mysql_errno($this->connection); |
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| | | $native_msg = @mysql_error($this->connection); |
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| | | } else { |
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| | | $native_code = @mysql_errno(); |
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| | | $native_msg = @mysql_error(); |
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| | | } |
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| | | if (is_null($error)) { |
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| | | static $ecode_map; |
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| | | if (empty($ecode_map)) { |
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| | | $ecode_map = array( |
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| | | 1000 => MDB2_ERROR_INVALID, //hashchk |
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| | | 1001 => MDB2_ERROR_INVALID, //isamchk |
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| | | 1004 => MDB2_ERROR_CANNOT_CREATE, |
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| | | 1005 => MDB2_ERROR_CANNOT_CREATE, |
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| | | 1006 => MDB2_ERROR_CANNOT_CREATE, |
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| | | 1007 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1008 => MDB2_ERROR_CANNOT_DROP, |
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| | | 1009 => MDB2_ERROR_CANNOT_DROP, |
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| | | 1010 => MDB2_ERROR_CANNOT_DROP, |
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| | | 1011 => MDB2_ERROR_CANNOT_DELETE, |
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| | | 1022 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1029 => MDB2_ERROR_NOT_FOUND, |
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| | | 1032 => MDB2_ERROR_NOT_FOUND, |
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| | | 1044 => MDB2_ERROR_ACCESS_VIOLATION, |
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| | | 1045 => MDB2_ERROR_ACCESS_VIOLATION, |
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| | | 1046 => MDB2_ERROR_NODBSELECTED, |
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| | | 1048 => MDB2_ERROR_CONSTRAINT, |
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| | | 1049 => MDB2_ERROR_NOSUCHDB, |
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| | | 1050 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1051 => MDB2_ERROR_NOSUCHTABLE, |
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| | | 1054 => MDB2_ERROR_NOSUCHFIELD, |
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| | | 1060 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1061 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1062 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1064 => MDB2_ERROR_SYNTAX, |
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| | | 1067 => MDB2_ERROR_INVALID, |
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| | | 1072 => MDB2_ERROR_NOT_FOUND, |
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| | | 1086 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1091 => MDB2_ERROR_NOT_FOUND, |
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| | | 1100 => MDB2_ERROR_NOT_LOCKED, |
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| | | 1109 => MDB2_ERROR_NOT_FOUND, |
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| | | 1125 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1136 => MDB2_ERROR_VALUE_COUNT_ON_ROW, |
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| | | 1138 => MDB2_ERROR_INVALID, |
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| | | 1142 => MDB2_ERROR_ACCESS_VIOLATION, |
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| | | 1143 => MDB2_ERROR_ACCESS_VIOLATION, |
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| | | 1146 => MDB2_ERROR_NOSUCHTABLE, |
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| | | 1149 => MDB2_ERROR_SYNTAX, |
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| | | 1169 => MDB2_ERROR_CONSTRAINT, |
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| | | 1176 => MDB2_ERROR_NOT_FOUND, |
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| | | 1177 => MDB2_ERROR_NOSUCHTABLE, |
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| | | 1213 => MDB2_ERROR_DEADLOCK, |
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| | | 1216 => MDB2_ERROR_CONSTRAINT, |
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| | | 1217 => MDB2_ERROR_CONSTRAINT, |
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| | | 1227 => MDB2_ERROR_ACCESS_VIOLATION, |
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| | | 1235 => MDB2_ERROR_CANNOT_CREATE, |
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| | | 1299 => MDB2_ERROR_INVALID_DATE, |
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| | | 1300 => MDB2_ERROR_INVALID, |
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| | | 1304 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1305 => MDB2_ERROR_NOT_FOUND, |
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| | | 1306 => MDB2_ERROR_CANNOT_DROP, |
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| | | 1307 => MDB2_ERROR_CANNOT_CREATE, |
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| | | 1334 => MDB2_ERROR_CANNOT_ALTER, |
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| | | 1339 => MDB2_ERROR_NOT_FOUND, |
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| | | 1356 => MDB2_ERROR_INVALID, |
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| | | 1359 => MDB2_ERROR_ALREADY_EXISTS, |
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| | | 1360 => MDB2_ERROR_NOT_FOUND, |
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| | | 1363 => MDB2_ERROR_NOT_FOUND, |
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| | | 1365 => MDB2_ERROR_DIVZERO, |
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| | | 1451 => MDB2_ERROR_CONSTRAINT, |
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| | | 1452 => MDB2_ERROR_CONSTRAINT, |
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| | | 1542 => MDB2_ERROR_CANNOT_DROP, |
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| | | 1546 => MDB2_ERROR_CONSTRAINT, |
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| | | 1582 => MDB2_ERROR_CONSTRAINT, |
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| | | 2003 => MDB2_ERROR_CONNECT_FAILED, |
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| | | 2019 => MDB2_ERROR_INVALID, |
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| | | ); |
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| | | } |
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| | | if ($this->options['portability'] & MDB2_PORTABILITY_ERRORS) { |
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| | | $ecode_map[1022] = MDB2_ERROR_CONSTRAINT; |
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| | | $ecode_map[1048] = MDB2_ERROR_CONSTRAINT_NOT_NULL; |
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| | | $ecode_map[1062] = MDB2_ERROR_CONSTRAINT; |
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| | | } else { |
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| | | // Doing this in case mode changes during runtime. |
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| | | $ecode_map[1022] = MDB2_ERROR_ALREADY_EXISTS; |
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| | | $ecode_map[1048] = MDB2_ERROR_CONSTRAINT; |
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| | | $ecode_map[1062] = MDB2_ERROR_ALREADY_EXISTS; |
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| | | } |
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| | | if (isset($ecode_map[$native_code])) { |
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| | | $error = $ecode_map[$native_code]; |
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| | | } |
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| | | } |
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| | | return array($error, $native_code, $native_msg); |
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| | | } |
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| | | |
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| | | // }}} |
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| | | // {{{ escape() |
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| | | |
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| | | /** |
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| | | * Quotes a string so it can be safely used in a query. It will quote |
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| | | * the text so it can safely be used within a query. |
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| | | * |
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| | | * @param string the input string to quote |
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| | | * @param bool escape wildcards |
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| | | * |
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| | | * @return string quoted string |
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| | | * |
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| | | * @access public |
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| | | */ |
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| | | function escape($text, $escape_wildcards = false) |
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| | | { |
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| | | if ($escape_wildcards) { |
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| | | $text = $this->escapePattern($text); |
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| | | } |
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| | | $connection = $this->getConnection(); |
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| | | if (PEAR::isError($connection)) { |
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| | | return $connection; |
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| | | } |
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| | | $text = @mysql_real_escape_string($text, $connection); |
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| | | return $text; |
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| | | } |
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| | | |
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| | | // }}} |
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| | | // {{{ beginTransaction() |
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| | | |
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| | | /** |
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| | | * Start a transaction or set a savepoint. |
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| | | * |
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| | | * @param string name of a savepoint to set |
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| | | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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| | | * |
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| | | * @access public |
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| | | */ |
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| | | function beginTransaction($savepoint = null) |
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| | | { |
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| | | $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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| | | $this->_getServerCapabilities(); |
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| | | if (!is_null($savepoint)) { |
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| | | if (!$this->supports('savepoints')) { |
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| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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| | | 'savepoints are not supported', __FUNCTION__); |
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| | | } |
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| | | if (!$this->in_transaction) { |
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| | | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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| | | 'savepoint cannot be released when changes are auto committed', __FUNCTION__); |
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| | | } |
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| | | $query = 'SAVEPOINT '.$savepoint; |
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| | | return $this->_doQuery($query, true); |
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| | | } elseif ($this->in_transaction) { |
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| | | return MDB2_OK; //nothing to do |
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| | | } |
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| | | if (!$this->destructor_registered && $this->opened_persistent) { |
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| | | $this->destructor_registered = true; |
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| | | register_shutdown_function('MDB2_closeOpenTransactions'); |
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| | | } |
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| | | $query = $this->start_transaction ? 'START TRANSACTION' : 'SET AUTOCOMMIT = 1'; |
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| | | $result =& $this->_doQuery($query, true); |
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| | | if (PEAR::isError($result)) { |
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| | | return $result; |
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| | | } |
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| | | $this->in_transaction = true; |
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| | | return MDB2_OK; |
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| | | } |
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| | | |
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| | | // }}} |
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| | | // {{{ commit() |
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| | | |
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| | | /** |
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| | | * Commit the database changes done during a transaction that is in |
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| | | * progress or release a savepoint. This function may only be called when |
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| | | * auto-committing is disabled, otherwise it will fail. Therefore, a new |
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| | | * transaction is implicitly started after committing the pending changes. |
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| | | * |
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| | | * @param string name of a savepoint to release |
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| | | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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| | | * |
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| | | * @access public |
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| | | */ |
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| | | function commit($savepoint = null) |
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| | | { |
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| | | $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
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| | | if (!$this->in_transaction) { |
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| | | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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| | | 'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__); |
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| | | } |
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| | | if (!is_null($savepoint)) { |
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| | | if (!$this->supports('savepoints')) { |
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| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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| | | 'savepoints are not supported', __FUNCTION__); |
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| | | } |
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| | | $server_info = $this->getServerVersion(); |
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| | | if (version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '5.0.3', '<')) { |
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| | | return MDB2_OK; |
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| | | } |
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| | | $query = 'RELEASE SAVEPOINT '.$savepoint; |
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| | | return $this->_doQuery($query, true); |
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| | | } |
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| | | |
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| | | if (!$this->supports('transactions')) { |
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| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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| | | 'transactions are not supported', __FUNCTION__); |
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| | | } |
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| | | |
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| | | $result =& $this->_doQuery('COMMIT', true); |
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| | | if (PEAR::isError($result)) { |
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| | | return $result; |
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| | | } |
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| | | if (!$this->start_transaction) { |
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| | | $query = 'SET AUTOCOMMIT = 0'; |
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| | | $result =& $this->_doQuery($query, true); |
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| | | if (PEAR::isError($result)) { |
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| | | return $result; |
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| | | } |
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| | | } |
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| | | $this->in_transaction = false; |
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| | | return MDB2_OK; |
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| | | } |
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| | | |
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| | | // }}} |
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| | | // {{{ rollback() |
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| | | |
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| | | /** |
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| | | * Cancel any database changes done during a transaction or since a specific |
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| | | * savepoint that is in progress. This function may only be called when |
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| | | * auto-committing is disabled, otherwise it will fail. Therefore, a new |
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| | | * transaction is implicitly started after canceling the pending changes. |
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| | | * |
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| | | * @param string name of a savepoint to rollback to |
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| | | * @return mixed MDB2_OK on success, a MDB2 error on failure |
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| | | * |
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| | | * @access public |
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| | | */ |
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| | | function rollback($savepoint = null) |
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| | | { |
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| | | $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint)); |
|---|
| | | if (!$this->in_transaction) { |
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| | | return $this->raiseError(MDB2_ERROR_INVALID, null, null, |
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| | | 'rollback cannot be done changes are auto committed', __FUNCTION__); |
|---|
| | | } |
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| | | if (!is_null($savepoint)) { |
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| | | if (!$this->supports('savepoints')) { |
|---|
| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
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| | | 'savepoints are not supported', __FUNCTION__); |
|---|
| | | } |
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| | | $query = 'ROLLBACK TO SAVEPOINT '.$savepoint; |
|---|
| | | return $this->_doQuery($query, true); |
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| | | } |
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| | | |
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| | | $query = 'ROLLBACK'; |
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| | | $result =& $this->_doQuery($query, true); |
|---|
| | | if (PEAR::isError($result)) { |
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| | | return $result; |
|---|
| | | } |
|---|
| | | if (!$this->start_transaction) { |
|---|
| | | $query = 'SET AUTOCOMMIT = 0'; |
|---|
| | | $result =& $this->_doQuery($query, true); |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | $this->in_transaction = false; |
|---|
| | | return MDB2_OK; |
|---|
| | | } |
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| | | |
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| | | // }}} |
|---|
| | | // {{{ function setTransactionIsolation() |
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| | | |
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| | | /** |
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| | | * Set the transacton isolation level. |
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| | | * |
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| | | * @param string standard isolation level |
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| | | * READ UNCOMMITTED (allows dirty reads) |
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| | | * READ COMMITTED (prevents dirty reads) |
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| | | * REPEATABLE READ (prevents nonrepeatable reads) |
|---|
| | | * SERIALIZABLE (prevents phantom reads) |
|---|
| | | * @return mixed MDB2_OK on success, a MDB2 error on failure |
|---|
| | | * |
|---|
| | | * @access public |
|---|
| | | * @since 2.1.1 |
|---|
| | | */ |
|---|
| | | function setTransactionIsolation($isolation) |
|---|
| | | { |
|---|
| | | $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true)); |
|---|
| | | if (!$this->supports('transactions')) { |
|---|
| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
|---|
| | | 'transactions are not supported', __FUNCTION__); |
|---|
| | | } |
|---|
| | | switch ($isolation) { |
|---|
| | | case 'READ UNCOMMITTED': |
|---|
| | | case 'READ COMMITTED': |
|---|
| | | case 'REPEATABLE READ': |
|---|
| | | case 'SERIALIZABLE': |
|---|
| | | break; |
|---|
| | | default: |
|---|
| | | return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, |
|---|
| | | 'isolation level is not supported: '.$isolation, __FUNCTION__); |
|---|
| | | } |
|---|
| | | |
|---|
| | | $query = "SET SESSION TRANSACTION ISOLATION LEVEL $isolation"; |
|---|
| | | return $this->_doQuery($query, true); |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ _doConnect() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * do the grunt work of the connect |
|---|
| | | * |
|---|
| | | * @return connection on success or MDB2 Error Object on failure |
|---|
| | | * @access protected |
|---|
| | | */ |
|---|
| | | function _doConnect($username, $password, $persistent = false) |
|---|
| | | { |
|---|
| | | if (!PEAR::loadExtension($this->phptype)) { |
|---|
| | | return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, |
|---|
| | | 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__); |
|---|
| | | } |
|---|
| | | |
|---|
| | | $params = array(); |
|---|
| | | if ($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[] = $username ? $username : null; |
|---|
| | | $params[] = $password ? $password : null; |
|---|
| | | if (!$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 = $persistent ? 'mysql_pconnect' : 'mysql_connect'; |
|---|
| | | |
|---|
| | | $connection = @call_user_func_array($connect_function, $params); |
|---|
| | | if (!$connection) { |
|---|
| | | if (($err = @mysql_error()) != '') { |
|---|
| | | return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, |
|---|
| | | $err, __FUNCTION__); |
|---|
| | | } else { |
|---|
| | | return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, |
|---|
| | | 'unable to establish a connection', __FUNCTION__); |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | if (!empty($this->dsn['charset'])) { |
|---|
| | | $result = $this->setCharset($this->dsn['charset'], $connection); |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | $this->disconnect(false); |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ connect() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Connect to the database |
|---|
| | | * |
|---|
| | | * @return MDB2_OK on success, MDB2 Error Object on failure |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function connect() |
|---|
| | | { |
|---|
| | | if (is_resource($this->connection)) { |
|---|
| | | //if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 |
|---|
| | | if (MDB2::areEquals($this->connected_dsn, $this->dsn) |
|---|
| | | && $this->opened_persistent == $this->options['persistent'] |
|---|
| | | ) { |
|---|
| | | return MDB2_OK; |
|---|
| | | } |
|---|
| | | $this->disconnect(false); |
|---|
| | | } |
|---|
| | | |
|---|
| | | $connection = $this->_doConnect( |
|---|
| | | $this->dsn['username'], |
|---|
| | | $this->dsn['password'], |
|---|
| | | $this->options['persistent'] |
|---|
| | | ); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $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'] : $this->phptype; |
|---|
| | | |
|---|
| | | if ($this->database_name) { |
|---|
| | | if ($this->database_name != $this->connected_database_name) { |
|---|
| | | if (!@mysql_select_db($this->database_name, $connection)) { |
|---|
| | | $err = $this->raiseError(null, null, null, |
|---|
| | | 'Could not select the database: '.$this->database_name, __FUNCTION__); |
|---|
| | | return $err; |
|---|
| | | } |
|---|
| | | $this->connected_database_name = $this->database_name; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | $this->_getServerCapabilities(); |
|---|
| | | |
|---|
| | | return MDB2_OK; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ setCharset() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Set the charset on the current connection |
|---|
| | | * |
|---|
| | | * @param string charset (or array(charset, collation)) |
|---|
| | | * @param resource connection handle |
|---|
| | | * |
|---|
| | | * @return true on success, MDB2 Error Object on failure |
|---|
| | | */ |
|---|
| | | function setCharset($charset, $connection = null) |
|---|
| | | { |
|---|
| | | if (is_null($connection)) { |
|---|
| | | $connection = $this->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | $collation = null; |
|---|
| | | if (is_array($charset) && 2 == count($charset)) { |
|---|
| | | $collation = array_pop($charset); |
|---|
| | | $charset = array_pop($charset); |
|---|
| | | } |
|---|
| | | $query = "SET NAMES '".mysql_real_escape_string($charset, $connection)."'"; |
|---|
| | | if (!is_null($collation)) { |
|---|
| | | $query .= " COLLATE '".mysqli_real_escape_string($connection, $collation)."'"; |
|---|
| | | } |
|---|
| | | return $this->_doQuery($query, true, $connection); |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ databaseExists() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * check if given database name is exists? |
|---|
| | | * |
|---|
| | | * @param string $name name of the database that should be checked |
|---|
| | | * |
|---|
| | | * @return mixed true/false on success, a MDB2 error on failure |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function databaseExists($name) |
|---|
| | | { |
|---|
| | | $connection = $this->_doConnect($this->dsn['username'], |
|---|
| | | $this->dsn['password'], |
|---|
| | | $this->options['persistent']); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $result = @mysql_select_db($name, $connection); |
|---|
| | | @mysql_close($connection); |
|---|
| | | |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ disconnect() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Log out and disconnect from the database. |
|---|
| | | * |
|---|
| | | * @param boolean $force if the disconnect should be forced even if the |
|---|
| | | * connection is opened persistently |
|---|
| | | * @return mixed true on success, false if not connected and error |
|---|
| | | * object on error |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function disconnect($force = true) |
|---|
| | | { |
|---|
| | | if (is_resource($this->connection)) { |
|---|
| | | if ($this->in_transaction) { |
|---|
| | | $dsn = $this->dsn; |
|---|
| | | $database_name = $this->database_name; |
|---|
| | | $persistent = $this->options['persistent']; |
|---|
| | | $this->dsn = $this->connected_dsn; |
|---|
| | | $this->database_name = $this->connected_database_name; |
|---|
| | | $this->options['persistent'] = $this->opened_persistent; |
|---|
| | | $this->rollback(); |
|---|
| | | $this->dsn = $dsn; |
|---|
| | | $this->database_name = $database_name; |
|---|
| | | $this->options['persistent'] = $persistent; |
|---|
| | | } |
|---|
| | | |
|---|
| | | if (!$this->opened_persistent || $force) { |
|---|
| | | @mysql_close($this->connection); |
|---|
| | | } |
|---|
| | | } |
|---|
| | | return parent::disconnect($force); |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ standaloneQuery() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * execute a query as DBA |
|---|
| | | * |
|---|
| | | * @param string $query the SQL query |
|---|
| | | * @param mixed $types array that contains the types of the columns in |
|---|
| | | * the result set |
|---|
| | | * @param boolean $is_manip if the query is a manipulation query |
|---|
| | | * @return mixed MDB2_OK on success, a MDB2 error on failure |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function &standaloneQuery($query, $types = null, $is_manip = false) |
|---|
| | | { |
|---|
| | | $user = $this->options['DBA_username']? $this->options['DBA_username'] : $this->dsn['username']; |
|---|
| | | $pass = $this->options['DBA_password']? $this->options['DBA_password'] : $this->dsn['password']; |
|---|
| | | $connection = $this->_doConnect($user, $pass, $this->options['persistent']); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $offset = $this->offset; |
|---|
| | | $limit = $this->limit; |
|---|
| | | $this->offset = $this->limit = 0; |
|---|
| | | $query = $this->_modifyQuery($query, $is_manip, $limit, $offset); |
|---|
| | | |
|---|
| | | $result =& $this->_doQuery($query, $is_manip, $connection, $this->database_name); |
|---|
| | | if (!PEAR::isError($result)) { |
|---|
| | | $result = $this->_affectedRows($connection, $result); |
|---|
| | | } |
|---|
| | | |
|---|
| | | @mysql_close($connection); |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ _doQuery() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Execute a query |
|---|
| | | * @param string $query query |
|---|
| | | * @param boolean $is_manip if the query is a manipulation query |
|---|
| | | * @param resource $connection |
|---|
| | | * @param string $database_name |
|---|
| | | * @return result or error object |
|---|
| | | * @access protected |
|---|
| | | */ |
|---|
| | | function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null) |
|---|
| | | { |
|---|
| | | $this->last_query = $query; |
|---|
| | | $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre')); |
|---|
| | | if ($result) { |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | $query = $result; |
|---|
| | | } |
|---|
| | | if ($this->options['disable_query']) { |
|---|
| | | $result = $is_manip ? 0 : null; |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | |
|---|
| | | if (is_null($connection)) { |
|---|
| | | $connection = $this->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | if (is_null($database_name)) { |
|---|
| | | $database_name = $this->database_name; |
|---|
| | | } |
|---|
| | | |
|---|
| | | if ($database_name) { |
|---|
| | | if ($database_name != $this->connected_database_name) { |
|---|
| | | if (!@mysql_select_db($database_name, $connection)) { |
|---|
| | | $err = $this->raiseError(null, null, null, |
|---|
| | | 'Could not select the database: '.$database_name, __FUNCTION__); |
|---|
| | | return $err; |
|---|
| | | } |
|---|
| | | $this->connected_database_name = $database_name; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | $function = $this->options['result_buffering'] |
|---|
| | | ? 'mysql_query' : 'mysql_unbuffered_query'; |
|---|
| | | $result = @$function($query, $connection); |
|---|
| | | if (!$result) { |
|---|
| | | $err =& $this->raiseError(null, null, null, |
|---|
| | | 'Could not execute statement', __FUNCTION__); |
|---|
| | | return $err; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result)); |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ _affectedRows() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Returns the number of rows affected |
|---|
| | | * |
|---|
| | | * @param resource $result |
|---|
| | | * @param resource $connection |
|---|
| | | * @return mixed MDB2 Error Object or the number of rows affected |
|---|
| | | * @access private |
|---|
| | | */ |
|---|
| | | function _affectedRows($connection, $result = null) |
|---|
| | | { |
|---|
| | | if (is_null($connection)) { |
|---|
| | | $connection = $this->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | return @mysql_affected_rows($connection); |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ _modifyQuery() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Changes a query string for various DBMS specific reasons |
|---|
| | | * |
|---|
| | | * @param string $query query to modify |
|---|
| | | * @param boolean $is_manip if it is a DML query |
|---|
| | | * @param integer $limit limit the number of rows |
|---|
| | | * @param integer $offset start reading from given offset |
|---|
| | | * @return string modified query |
|---|
| | | * @access protected |
|---|
| | | */ |
|---|
| | | function _modifyQuery($query, $is_manip, $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); |
|---|
| | | } |
|---|
| | | |
|---|
| | | // LIMIT doesn't always come last in the query |
|---|
| | | // @see http://dev.mysql.com/doc/refman/5.0/en/select.html |
|---|
| | | $after = ''; |
|---|
| | | if (preg_match('/(\s+INTO\s+(?:OUT|DUMP)FILE\s.*)$/ims', $query, $matches)) { |
|---|
| | | $after = $matches[0]; |
|---|
| | | $query = preg_replace('/(\s+INTO\s+(?:OUT|DUMP)FILE\s.*)$/ims', '', $query); |
|---|
| | | } elseif (preg_match('/(\s+FOR\s+UPDATE\s*)$/i', $query, $matches)) { |
|---|
| | | $after = $matches[0]; |
|---|
| | | $query = preg_replace('/(\s+FOR\s+UPDATE\s*)$/im', '', $query); |
|---|
| | | } elseif (preg_match('/(\s+LOCK\s+IN\s+SHARE\s+MODE\s*)$/im', $query, $matches)) { |
|---|
| | | $after = $matches[0]; |
|---|
| | | $query = preg_replace('/(\s+LOCK\s+IN\s+SHARE\s+MODE\s*)$/im', '', $query); |
|---|
| | | } |
|---|
| | | |
|---|
| | | if ($is_manip) { |
|---|
| | | return $query . " LIMIT $limit" . $after; |
|---|
| | | } else { |
|---|
| | | return $query . " LIMIT $offset, $limit" . $after; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | return $query; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ getServerVersion() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * return version information about the server |
|---|
| | | * |
|---|
| | | * @param bool $native determines if the raw version string should be returned |
|---|
| | | * @return mixed array/string with version information or MDB2 error object |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function getServerVersion($native = false) |
|---|
| | | { |
|---|
| | | $connection = $this->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | if ($this->connected_server_info) { |
|---|
| | | $server_info = $this->connected_server_info; |
|---|
| | | } else { |
|---|
| | | $server_info = @mysql_get_server_info($connection); |
|---|
| | | } |
|---|
| | | if (!$server_info) { |
|---|
| | | return $this->raiseError(null, null, null, |
|---|
| | | 'Could not get server information', __FUNCTION__); |
|---|
| | | } |
|---|
| | | // cache server_info |
|---|
| | | $this->connected_server_info = $server_info; |
|---|
| | | if (!$native) { |
|---|
| | | $tmp = explode('.', $server_info, 3); |
|---|
| | | if (isset($tmp[2]) && strpos($tmp[2], '-')) { |
|---|
| | | $tmp2 = explode('-', @$tmp[2], 2); |
|---|
| | | } else { |
|---|
| | | $tmp2[0] = isset($tmp[2]) ? $tmp[2] : null; |
|---|
| | | $tmp2[1] = null; |
|---|
| | | } |
|---|
| | | $server_info = array( |
|---|
| | | 'major' => isset($tmp[0]) ? $tmp[0] : null, |
|---|
| | | 'minor' => isset($tmp[1]) ? $tmp[1] : null, |
|---|
| | | 'patch' => $tmp2[0], |
|---|
| | | 'extra' => $tmp2[1], |
|---|
| | | 'native' => $server_info, |
|---|
| | | ); |
|---|
| | | } |
|---|
| | | return $server_info; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ _getServerCapabilities() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Fetch some information about the server capabilities |
|---|
| | | * (transactions, subselects, prepared statements, etc). |
|---|
| | | * |
|---|
| | | * @access private |
|---|
| | | */ |
|---|
| | | function _getServerCapabilities() |
|---|
| | | { |
|---|
| | | if (!$this->server_capabilities_checked) { |
|---|
| | | $this->server_capabilities_checked = true; |
|---|
| | | |
|---|
| | | //set defaults |
|---|
| | | $this->supported['sub_selects'] = 'emulated'; |
|---|
| | | $this->supported['prepared_statements'] = 'emulated'; |
|---|
| | | $this->supported['triggers'] = false; |
|---|
| | | $this->start_transaction = false; |
|---|
| | | $this->varchar_max_length = 255; |
|---|
| | | |
|---|
| | | $server_info = $this->getServerVersion(); |
|---|
| | | if (is_array($server_info)) { |
|---|
| | | $server_version = $server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch']; |
|---|
| | | |
|---|
| | | if (!version_compare($server_version, '4.1.0', '<')) { |
|---|
| | | $this->supported['sub_selects'] = true; |
|---|
| | | $this->supported['prepared_statements'] = true; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // SAVEPOINTs were introduced in MySQL 4.0.14 and 4.1.1 (InnoDB) |
|---|
| | | if (version_compare($server_version, '4.1.0', '>=')) { |
|---|
| | | if (version_compare($server_version, '4.1.1', '<')) { |
|---|
| | | $this->supported['savepoints'] = false; |
|---|
| | | } |
|---|
| | | } elseif (version_compare($server_version, '4.0.14', '<')) { |
|---|
| | | $this->supported['savepoints'] = false; |
|---|
| | | } |
|---|
| | | |
|---|
| | | if (!version_compare($server_version, '4.0.11', '<')) { |
|---|
| | | $this->start_transaction = true; |
|---|
| | | } |
|---|
| | | |
|---|
| | | if (!version_compare($server_version, '5.0.3', '<')) { |
|---|
| | | $this->varchar_max_length = 65532; |
|---|
| | | } |
|---|
| | | |
|---|
| | | if (!version_compare($server_version, '5.0.2', '<')) { |
|---|
| | | $this->supported['triggers'] = true; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ function _skipUserDefinedVariable($query, $position) |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Utility method, used by prepare() to avoid misinterpreting MySQL user |
|---|
| | | * defined variables (SELECT @x:=5) for placeholders. |
|---|
| | | * Check if the placeholder is a false positive, i.e. if it is an user defined |
|---|
| | | * variable instead. If so, skip it and advance the position, otherwise |
|---|
| | | * return the current position, which is valid |
|---|
| | | * |
|---|
| | | * @param string $query |
|---|
| | | * @param integer $position current string cursor position |
|---|
| | | * @return integer $new_position |
|---|
| | | * @access protected |
|---|
| | | */ |
|---|
| | | function _skipUserDefinedVariable($query, $position) |
|---|
| | | { |
|---|
| | | $found = strpos(strrev(substr($query, 0, $position)), '@'); |
|---|
| | | if ($found === false) { |
|---|
| | | return $position; |
|---|
| | | } |
|---|
| | | $pos = strlen($query) - strlen(substr($query, $position)) - $found - 1; |
|---|
| | | $substring = substr($query, $pos, $position - $pos + 2); |
|---|
| | | if (preg_match('/^@\w+\s*:=$/', $substring)) { |
|---|
| | | return $position + 1; //found an user defined variable: skip it |
|---|
| | | } |
|---|
| | | return $position; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ prepare() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Prepares a query for multiple execution with execute(). |
|---|
| | | * With some database backends, this is emulated. |
|---|
| | | * prepare() requires a generic query as string like |
|---|
| | | * 'INSERT INTO numbers VALUES(?,?)' or |
|---|
| | | * 'INSERT INTO numbers VALUES(:foo,:bar)'. |
|---|
| | | * The ? and :name and are placeholders which can be set using |
|---|
| | | * bindParam() and the query can be sent off using the execute() method. |
|---|
| | | * The allowed format for :name can be set with the 'bindname_format' option. |
|---|
| | | * |
|---|
| | | * @param string $query the query to prepare |
|---|
| | | * @param mixed $types array that contains the types of the placeholders |
|---|
| | | * @param mixed $result_types array that contains the types of the columns in |
|---|
| | | * the result set or MDB2_PREPARE_RESULT, if set to |
|---|
| | | * MDB2_PREPARE_MANIP the query is handled as a manipulation query |
|---|
| | | * @param mixed $lobs key (field) value (parameter) pair for all lob placeholders |
|---|
| | | * @return mixed resource handle for the prepared query on success, a MDB2 |
|---|
| | | * error on failure |
|---|
| | | * @access public |
|---|
| | | * @see bindParam, execute |
|---|
| | | */ |
|---|
| | | function &prepare($query, $types = null, $result_types = null, $lobs = array()) |
|---|
| | | { |
|---|
| | | if ($this->options['emulate_prepared'] |
|---|
| | | || $this->supported['prepared_statements'] !== true |
|---|
| | | ) { |
|---|
| | | $obj =& parent::prepare($query, $types, $result_types, $lobs); |
|---|
| | | return $obj; |
|---|
| | | } |
|---|
| | | $is_manip = ($result_types === MDB2_PREPARE_MANIP); |
|---|
| | | $offset = $this->offset; |
|---|
| | | $limit = $this->limit; |
|---|
| | | $this->offset = $this->limit = 0; |
|---|
| | | $query = $this->_modifyQuery($query, $is_manip, $limit, $offset); |
|---|
| | | $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre')); |
|---|
| | | if ($result) { |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | $query = $result; |
|---|
| | | } |
|---|
| | | $placeholder_type_guess = $placeholder_type = null; |
|---|
| | | $question = '?'; |
|---|
| | | $colon = ':'; |
|---|
| | | $positions = array(); |
|---|
| | | $position = 0; |
|---|
| | | while ($position < strlen($query)) { |
|---|
| | | $q_position = strpos($query, $question, $position); |
|---|
| | | $c_position = strpos($query, $colon, $position); |
|---|
| | | if ($q_position && $c_position) { |
|---|
| | | $p_position = min($q_position, $c_position); |
|---|
| | | } elseif ($q_position) { |
|---|
| | | $p_position = $q_position; |
|---|
| | | } elseif ($c_position) { |
|---|
| | | $p_position = $c_position; |
|---|
| | | } else { |
|---|
| | | break; |
|---|
| | | } |
|---|
| | | if (is_null($placeholder_type)) { |
|---|
| | | $placeholder_type_guess = $query[$p_position]; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position); |
|---|
| | | if (PEAR::isError($new_pos)) { |
|---|
| | | return $new_pos; |
|---|
| | | } |
|---|
| | | if ($new_pos != $position) { |
|---|
| | | $position = $new_pos; |
|---|
| | | continue; //evaluate again starting from the new position |
|---|
| | | } |
|---|
| | | |
|---|
| | | //make sure this is not part of an user defined variable |
|---|
| | | $new_pos = $this->_skipUserDefinedVariable($query, $position); |
|---|
| | | if ($new_pos != $position) { |
|---|
| | | $position = $new_pos; |
|---|
| | | continue; //evaluate again starting from the new position |
|---|
| | | } |
|---|
| | | |
|---|
| | | if ($query[$position] == $placeholder_type_guess) { |
|---|
| | | if (is_null($placeholder_type)) { |
|---|
| | | $placeholder_type = $query[$p_position]; |
|---|
| | | $question = $colon = $placeholder_type; |
|---|
| | | } |
|---|
| | | if ($placeholder_type == ':') { |
|---|
| | | $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s'; |
|---|
| | | $parameter = preg_replace($regexp, '\\1', $query); |
|---|
| | | if ($parameter === '') { |
|---|
| | | $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null, |
|---|
| | | 'named parameter name must match "bindname_format" option', __FUNCTION__); |
|---|
| | | return $err; |
|---|
| | | } |
|---|
| | | $positions[$p_position] = $parameter; |
|---|
| | | $query = substr_replace($query, '?', $position, strlen($parameter)+1); |
|---|
| | | } else { |
|---|
| | | $positions[$p_position] = count($positions); |
|---|
| | | } |
|---|
| | | $position = $p_position + 1; |
|---|
| | | } else { |
|---|
| | | $position = $p_position; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | $connection = $this->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | static $prep_statement_counter = 1; |
|---|
| | | $statement_name = sprintf($this->options['statement_format'], $this->phptype, $prep_statement_counter++ . sha1(microtime() + mt_rand())); |
|---|
| | | $statement_name = substr(strtolower($statement_name), 0, $this->options['max_identifiers_length']); |
|---|
| | | $query = "PREPARE $statement_name FROM ".$this->quote($query, 'text'); |
|---|
| | | $statement =& $this->_doQuery($query, true, $connection); |
|---|
| | | if (PEAR::isError($statement)) { |
|---|
| | | return $statement; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $class_name = 'MDB2_Statement_'.$this->phptype; |
|---|
| | | $obj = new $class_name($this, $statement_name, $positions, $query, $types, $result_types, $is_manip, $limit, $offset); |
|---|
| | | $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj)); |
|---|
| | | return $obj; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ 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.= $this->quoteIdentifier($name, true); |
|---|
| | | if (isset($fields[$name]['null']) && $fields[$name]['null']) { |
|---|
| | | $value = 'NULL'; |
|---|
| | | } else { |
|---|
| | | $type = isset($fields[$name]['type']) ? $fields[$name]['type'] : null; |
|---|
| | | $value = $this->quote($fields[$name]['value'], $type); |
|---|
| | | if (PEAR::isError($value)) { |
|---|
| | | return $value; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | $values.= $value; |
|---|
| | | if (isset($fields[$name]['key']) && $fields[$name]['key']) { |
|---|
| | | if ($value === 'NULL') { |
|---|
| | | return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, |
|---|
| | | 'key value '.$name.' may not be NULL', __FUNCTION__); |
|---|
| | | } |
|---|
| | | $keys++; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | if ($keys == 0) { |
|---|
| | | return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, |
|---|
| | | 'not specified which fields are keys', __FUNCTION__); |
|---|
| | | } |
|---|
| | | |
|---|
| | | $connection = $this->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $table = $this->quoteIdentifier($table, true); |
|---|
| | | $query = "REPLACE INTO $table ($query) VALUES ($values)"; |
|---|
| | | $result =& $this->_doQuery($query, true, $connection); |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | return $this->_affectedRows($connection, $result); |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ nextID() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Returns the next free id of a sequence |
|---|
| | | * |
|---|
| | | * @param string $seq_name name of the sequence |
|---|
| | | * @param boolean $ondemand when true the sequence is |
|---|
| | | * automatic created, if it |
|---|
| | | * not exists |
|---|
| | | * |
|---|
| | | * @return mixed MDB2 Error Object or id |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function nextID($seq_name, $ondemand = true) |
|---|
| | | { |
|---|
| | | $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true); |
|---|
| | | $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true); |
|---|
| | | $query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (NULL)"; |
|---|
| | | $this->pushErrorHandling(PEAR_ERROR_RETURN); |
|---|
| | | $this->expectError(MDB2_ERROR_NOSUCHTABLE); |
|---|
| | | $result =& $this->_doQuery($query, true); |
|---|
| | | $this->popExpect(); |
|---|
| | | $this->popErrorHandling(); |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) { |
|---|
| | | $this->loadModule('Manager', null, true); |
|---|
| | | $result = $this->manager->createSequence($seq_name); |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | return $this->raiseError($result, null, null, |
|---|
| | | 'on demand sequence '.$seq_name.' could not be created', __FUNCTION__); |
|---|
| | | } else { |
|---|
| | | return $this->nextID($seq_name, false); |
|---|
| | | } |
|---|
| | | } |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | $value = $this->lastInsertID(); |
|---|
| | | if (is_numeric($value)) { |
|---|
| | | $query = "DELETE FROM $sequence_name WHERE $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 or fetches the current |
|---|
| | | * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field) |
|---|
| | | * |
|---|
| | | * @param string $table name of the table into which a new row was inserted |
|---|
| | | * @param string $field name of the field into which a new row was inserted |
|---|
| | | * @return mixed MDB2 Error Object or id |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function lastInsertID($table = null, $field = null) |
|---|
| | | { |
|---|
| | | // not using mysql_insert_id() due to http://pear.php.net/bugs/bug.php?id=8051 |
|---|
| | | 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 = $this->quoteIdentifier($this->getSequenceName($seq_name), true); |
|---|
| | | $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true); |
|---|
| | | $query = "SELECT MAX($seqcol_name) FROM $sequence_name"; |
|---|
| | | return $this->queryOne($query, 'integer'); |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * MDB2 MySQL result driver |
|---|
| | | * |
|---|
| | | * @package MDB2 |
|---|
| | | * @category Database |
|---|
| | | * @author Lukas Smith <smith@pooteeweet.org> |
|---|
| | | */ |
|---|
| | | 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 (!$row) { |
|---|
| | | if ($this->result === false) { |
|---|
| | | $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
|---|
| | | 'resultset has already been freed', __FUNCTION__); |
|---|
| | | return $err; |
|---|
| | | } |
|---|
| | | $null = null; |
|---|
| | | return $null; |
|---|
| | | } |
|---|
| | | $mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL; |
|---|
| | | $rtrim = false; |
|---|
| | | if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) { |
|---|
| | | if (empty($this->types)) { |
|---|
| | | $mode += MDB2_PORTABILITY_RTRIM; |
|---|
| | | } else { |
|---|
| | | $rtrim = true; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | if ($mode) { |
|---|
| | | $this->db->_fixResultArrayValues($row, $mode); |
|---|
| | | } |
|---|
| | | if (!empty($this->types)) { |
|---|
| | | $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim); |
|---|
| | | } |
|---|
| | | if (!empty($this->values)) { |
|---|
| | | $this->_assignBindColumns($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 Array variable that holds the names of columns as keys |
|---|
| | | * or an MDB2 error on failure. |
|---|
| | | * Some DBMS may not return any columns when the result set |
|---|
| | | * does not contain any rows. |
|---|
| | | * @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($cols)) { |
|---|
| | | if ($this->result === false) { |
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
|---|
| | | 'resultset has already been freed', __FUNCTION__); |
|---|
| | | } elseif (is_null($this->result)) { |
|---|
| | | return count($this->types); |
|---|
| | | } |
|---|
| | | return $this->db->raiseError(null, null, null, |
|---|
| | | 'Could not get column count', __FUNCTION__); |
|---|
| | | } |
|---|
| | | return $cols; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ free() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Free the internal resources associated with result. |
|---|
| | | * |
|---|
| | | * @return boolean true on success, false if result is invalid |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function free() |
|---|
| | | { |
|---|
| | | if (is_resource($this->result) && $this->db->connection) { |
|---|
| | | $free = @mysql_free_result($this->result); |
|---|
| | | if ($free === false) { |
|---|
| | | return $this->db->raiseError(null, null, null, |
|---|
| | | 'Could not free result', __FUNCTION__); |
|---|
| | | } |
|---|
| | | } |
|---|
| | | $this->result = false; |
|---|
| | | return MDB2_OK; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * MDB2 MySQL buffered result driver |
|---|
| | | * |
|---|
| | | * @package MDB2 |
|---|
| | | * @category Database |
|---|
| | | * @author Lukas Smith <smith@pooteeweet.org> |
|---|
| | | */ |
|---|
| | | 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, $rownum)) { |
|---|
| | | if ($this->result === false) { |
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
|---|
| | | 'resultset has already been freed', __FUNCTION__); |
|---|
| | | } elseif (is_null($this->result)) { |
|---|
| | | return MDB2_OK; |
|---|
| | | } |
|---|
| | | return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, |
|---|
| | | 'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__); |
|---|
| | | } |
|---|
| | | $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 (false === $rows) { |
|---|
| | | if (false === $this->result) { |
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, |
|---|
| | | 'resultset has already been freed', __FUNCTION__); |
|---|
| | | } elseif (is_null($this->result)) { |
|---|
| | | return 0; |
|---|
| | | } |
|---|
| | | return $this->db->raiseError(null, null, null, |
|---|
| | | 'Could not get row count', __FUNCTION__); |
|---|
| | | } |
|---|
| | | return $rows; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * MDB2 MySQL statement driver |
|---|
| | | * |
|---|
| | | * @package MDB2 |
|---|
| | | * @category Database |
|---|
| | | * @author Lukas Smith <smith@pooteeweet.org> |
|---|
| | | */ |
|---|
| | | class MDB2_Statement_mysql extends MDB2_Statement_Common |
|---|
| | | { |
|---|
| | | // {{{ _execute() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Execute a prepared query statement helper method. |
|---|
| | | * |
|---|
| | | * @param mixed $result_class string which specifies which result class to use |
|---|
| | | * @param mixed $result_wrap_class string which specifies which class to wrap results in |
|---|
| | | * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure |
|---|
| | | * @access private |
|---|
| | | */ |
|---|
| | | function &_execute($result_class = true, $result_wrap_class = false) |
|---|
| | | { |
|---|
| | | if (is_null($this->statement)) { |
|---|
| | | $result =& parent::_execute($result_class, $result_wrap_class); |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | $this->db->last_query = $this->query; |
|---|
| | | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'pre', 'parameters' => $this->values)); |
|---|
| | | if ($this->db->getOption('disable_query')) { |
|---|
| | | $result = $this->is_manip ? 0 : null; |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $connection = $this->db->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $query = 'EXECUTE '.$this->statement; |
|---|
| | | if (!empty($this->positions)) { |
|---|
| | | $parameters = array(); |
|---|
| | | foreach ($this->positions as $parameter) { |
|---|
| | | if (!array_key_exists($parameter, $this->values)) { |
|---|
| | | return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null, |
|---|
| | | 'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__); |
|---|
| | | } |
|---|
| | | $value = $this->values[$parameter]; |
|---|
| | | $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null; |
|---|
| | | if (is_resource($value) || $type == 'clob' || $type == 'blob' && $this->db->options['lob_allow_url_include']) { |
|---|
| | | if (!is_resource($value) && preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) { |
|---|
| | | if ($match[1] == 'file://') { |
|---|
| | | $value = $match[2]; |
|---|
| | | } |
|---|
| | | $value = @fopen($value, 'r'); |
|---|
| | | $close = true; |
|---|
| | | } |
|---|
| | | if (is_resource($value)) { |
|---|
| | | $data = ''; |
|---|
| | | while (!@feof($value)) { |
|---|
| | | $data.= @fread($value, $this->db->options['lob_buffer_length']); |
|---|
| | | } |
|---|
| | | if ($close) { |
|---|
| | | @fclose($value); |
|---|
| | | } |
|---|
| | | $value = $data; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | $quoted = $this->db->quote($value, $type); |
|---|
| | | if (PEAR::isError($quoted)) { |
|---|
| | | return $quoted; |
|---|
| | | } |
|---|
| | | $param_query = 'SET @'.$parameter.' = '.$quoted; |
|---|
| | | $result = $this->db->_doQuery($param_query, true, $connection); |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | $query.= ' USING @'.implode(', @', array_values($this->positions)); |
|---|
| | | } |
|---|
| | | |
|---|
| | | $result = $this->db->_doQuery($query, $this->is_manip, $connection); |
|---|
| | | if (PEAR::isError($result)) { |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | |
|---|
| | | if ($this->is_manip) { |
|---|
| | | $affected_rows = $this->db->_affectedRows($connection, $result); |
|---|
| | | return $affected_rows; |
|---|
| | | } |
|---|
| | | |
|---|
| | | $result =& $this->db->_wrapResult($result, $this->result_types, |
|---|
| | | $result_class, $result_wrap_class, $this->limit, $this->offset); |
|---|
| | | $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'post', 'result' => $result)); |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | |
|---|
| | | // }}} |
|---|
| | | // {{{ free() |
|---|
| | | |
|---|
| | | /** |
|---|
| | | * Release resources allocated for the specified prepared query. |
|---|
| | | * |
|---|
| | | * @return mixed MDB2_OK on success, a MDB2 error on failure |
|---|
| | | * @access public |
|---|
| | | */ |
|---|
| | | function free() |
|---|
| | | { |
|---|
| | | if (is_null($this->positions)) { |
|---|
| | | return $this->db->raiseError(MDB2_ERROR, null, null, |
|---|
| | | 'Prepared statement has already been freed', __FUNCTION__); |
|---|
| | | } |
|---|
| | | $result = MDB2_OK; |
|---|
| | | |
|---|
| | | if (!is_null($this->statement)) { |
|---|
| | | $connection = $this->db->getConnection(); |
|---|
| | | if (PEAR::isError($connection)) { |
|---|
| | | return $connection; |
|---|
| | | } |
|---|
| | | $query = 'DEALLOCATE PREPARE '.$this->statement; |
|---|
| | | $result = $this->db->_doQuery($query, true, $connection); |
|---|
| | | } |
|---|
| | | |
|---|
| | | parent::free(); |
|---|
| | | return $result; |
|---|
| | | } |
|---|
| | | } |
|---|
| | | ?> |
|---|
