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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 1.170 2006/10/31 18:46:43 lsmith Exp $
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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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var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => '\\', 'escape_pattern' => '\\');
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var $identifier_quoting = array('start' => '`', 'end' => '`', 'escape' => '`');
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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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var $start_transaction = false;
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var $varchar_max_length = 255;
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// }}}
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// {{{ constructor
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/**
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* Constructor
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*/
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function __construct()
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{
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parent::__construct();
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$this->phptype = 'mysql';
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$this->dbsyntax = 'mysql';
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$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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$this->options['default_table_type'] = '';
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}
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// }}}
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// {{{ errorInfo()
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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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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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1022 => MDB2_ERROR_ALREADY_EXISTS,
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1044 => 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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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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1091 => MDB2_ERROR_NOT_FOUND,
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1100 => MDB2_ERROR_NOT_LOCKED,
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1136 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
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1142 => MDB2_ERROR_ACCESS_VIOLATION,
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1146 => MDB2_ERROR_NOSUCHTABLE,
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1216 => MDB2_ERROR_CONSTRAINT,
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1217 => 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, $native_msg);
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}
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// }}}
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// {{{ escape()
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/**
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* Quotes a string so it can be safely used in a query. It will quote
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* the text so it can safely be used within a query.
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*
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* @param string the input string to quote
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* @param bool escape wildcards
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*
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* @return string quoted string
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*
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* @access public
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*/
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function escape($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 $text;
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}
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// }}}
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// {{{
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/**
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* Start a transaction or set a savepoint.
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*
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* @param string name of a savepoint to set
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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*
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* @access public
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*/
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function beginTransaction($savepoint = null)
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{
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$this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
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if (!is_null($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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// {{{ commit()
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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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if (!$this->supports('transactions')) {
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return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
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'transactions are not supported', __FUNCTION__);
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}
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$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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// {{{ rollback()
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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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$query = 'ROLLBACK';
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$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);
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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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|
342 |
// {{{ function setTransactionIsolation()
|
|
|
343 |
|
|
|
344 |
/**
|
|
|
345 |
* Set the transacton isolation level.
|
|
|
346 |
*
|
|
|
347 |
* @param string standard isolation level
|
|
|
348 |
* READ UNCOMMITTED (allows dirty reads)
|
|
|
349 |
* READ COMMITTED (prevents dirty reads)
|
|
|
350 |
* REPEATABLE READ (prevents nonrepeatable reads)
|
|
|
351 |
* SERIALIZABLE (prevents phantom reads)
|
|
|
352 |
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
|
353 |
*
|
|
|
354 |
* @access public
|
|
|
355 |
* @since 2.1.1
|
|
|
356 |
*/
|
|
|
357 |
function setTransactionIsolation($isolation)
|
|
|
358 |
{
|
|
|
359 |
$this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
|
|
|
360 |
if (!$this->supports('transactions')) {
|
|
|
361 |
return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
|
362 |
'transactions are not supported', __FUNCTION__);
|
|
|
363 |
}
|
|
|
364 |
switch ($isolation) {
|
|
|
365 |
case 'READ UNCOMMITTED':
|
|
|
366 |
case 'READ COMMITTED':
|
|
|
367 |
case 'REPEATABLE READ':
|
|
|
368 |
case 'SERIALIZABLE':
|
|
|
369 |
break;
|
|
|
370 |
default:
|
|
|
371 |
return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
|
372 |
'isolation level is not supported: '.$isolation, __FUNCTION__);
|
|
|
373 |
}
|
|
|
374 |
|
|
|
375 |
$query = "SET SESSION TRANSACTION ISOLATION LEVEL $isolation";
|
|
|
376 |
return $this->_doQuery($query, true);
|
|
|
377 |
}
|
|
|
378 |
|
|
|
379 |
// }}}
|
|
|
380 |
// {{{ connect()
|
|
|
381 |
|
|
|
382 |
/**
|
|
|
383 |
* Connect to the database
|
|
|
384 |
*
|
|
|
385 |
* @return true on success, MDB2 Error Object on failure
|
|
|
386 |
*/
|
|
|
387 |
function connect()
|
|
|
388 |
{
|
|
|
389 |
if (is_resource($this->connection)) {
|
|
|
390 |
if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
|
|
|
391 |
&& $this->opened_persistent == $this->options['persistent']
|
|
|
392 |
) {
|
|
|
393 |
return MDB2_OK;
|
|
|
394 |
}
|
|
|
395 |
$this->disconnect(false);
|
|
|
396 |
}
|
|
|
397 |
|
|
|
398 |
if (!PEAR::loadExtension($this->phptype)) {
|
|
|
399 |
return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
|
|
|
400 |
'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__);
|
|
|
401 |
}
|
|
|
402 |
|
|
|
403 |
$params = array();
|
|
|
404 |
if ($this->dsn['protocol'] && $this->dsn['protocol'] == 'unix') {
|
|
|
405 |
$params[0] = ':' . $this->dsn['socket'];
|
|
|
406 |
} else {
|
|
|
407 |
$params[0] = $this->dsn['hostspec'] ? $this->dsn['hostspec']
|
|
|
408 |
: 'localhost';
|
|
|
409 |
if ($this->dsn['port']) {
|
|
|
410 |
$params[0].= ':' . $this->dsn['port'];
|
|
|
411 |
}
|
|
|
412 |
}
|
|
|
413 |
$params[] = $this->dsn['username'] ? $this->dsn['username'] : null;
|
|
|
414 |
$params[] = $this->dsn['password'] ? $this->dsn['password'] : null;
|
|
|
415 |
if (!$this->options['persistent']) {
|
|
|
416 |
if (isset($this->dsn['new_link'])
|
|
|
417 |
&& ($this->dsn['new_link'] == 'true' || $this->dsn['new_link'] === true)
|
|
|
418 |
) {
|
|
|
419 |
$params[] = true;
|
|
|
420 |
} else {
|
|
|
421 |
$params[] = false;
|
|
|
422 |
}
|
|
|
423 |
}
|
|
|
424 |
if (version_compare(phpversion(), '4.3.0', '>=')) {
|
|
|
425 |
$params[] = isset($this->dsn['client_flags'])
|
|
|
426 |
? $this->dsn['client_flags'] : null;
|
|
|
427 |
}
|
|
|
428 |
$connect_function = $this->options['persistent'] ? 'mysql_pconnect' : 'mysql_connect';
|
|
|
429 |
|
|
|
430 |
$connection = @call_user_func_array($connect_function, $params);
|
|
|
431 |
if (!$connection) {
|
|
|
432 |
if (($err = @mysql_error()) != '') {
|
|
|
433 |
return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
|
|
|
434 |
$err, __FUNCTION__);
|
|
|
435 |
} else {
|
|
|
436 |
return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
|
|
|
437 |
'unable to establish a connection', __FUNCTION__);
|
|
|
438 |
}
|
|
|
439 |
}
|
|
|
440 |
|
|
|
441 |
if (!empty($this->dsn['charset'])) {
|
|
|
442 |
$result = $this->setCharset($this->dsn['charset'], $connection);
|
|
|
443 |
if (PEAR::isError($result)) {
|
|
|
444 |
return $result;
|
|
|
445 |
}
|
|
|
446 |
}
|
|
|
447 |
|
|
|
448 |
$this->connection = $connection;
|
|
|
449 |
$this->connected_dsn = $this->dsn;
|
|
|
450 |
$this->connected_database_name = '';
|
|
|
451 |
$this->opened_persistent = $this->options['persistent'];
|
|
|
452 |
$this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
|
|
|
453 |
|
|
|
454 |
if ($this->database_name) {
|
|
|
455 |
if ($this->database_name != $this->connected_database_name) {
|
|
|
456 |
if (!@mysql_select_db($this->database_name, $connection)) {
|
|
|
457 |
$err = $this->raiseError(null, null, null,
|
|
|
458 |
'Could not select the database: '.$this->database_name, __FUNCTION__);
|
|
|
459 |
return $err;
|
|
|
460 |
}
|
|
|
461 |
$this->connected_database_name = $this->database_name;
|
|
|
462 |
}
|
|
|
463 |
}
|
|
|
464 |
|
|
|
465 |
$this->supported['transactions'] = $this->options['use_transactions'];
|
|
|
466 |
if ($this->options['default_table_type']) {
|
|
|
467 |
switch (strtoupper($this->options['default_table_type'])) {
|
|
|
468 |
case 'BLACKHOLE':
|
|
|
469 |
case 'MEMORY':
|
|
|
470 |
case 'ARCHIVE':
|
|
|
471 |
case 'CSV':
|
|
|
472 |
case 'HEAP':
|
|
|
473 |
case 'ISAM':
|
|
|
474 |
case 'MERGE':
|
|
|
475 |
case 'MRG_ISAM':
|
|
|
476 |
case 'ISAM':
|
|
|
477 |
case 'MRG_MYISAM':
|
|
|
478 |
case 'MYISAM':
|
|
|
479 |
$this->supported['transactions'] = false;
|
|
|
480 |
$this->warnings[] = $this->options['default_table_type'] .
|
|
|
481 |
' is not a supported default table type';
|
|
|
482 |
break;
|
|
|
483 |
}
|
|
|
484 |
}
|
|
|
485 |
|
|
|
486 |
$this->supported['sub_selects'] = 'emulated';
|
|
|
487 |
$this->supported['prepared_statements'] = 'emulated';
|
|
|
488 |
$this->start_transaction = false;
|
|
|
489 |
$this->varchar_max_length = 255;
|
|
|
490 |
|
|
|
491 |
$server_info = $this->getServerVersion();
|
|
|
492 |
if (is_array($server_info)) {
|
|
|
493 |
if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.1.0', '<')) {
|
|
|
494 |
$this->supported['sub_selects'] = true;
|
|
|
495 |
$this->supported['prepared_statements'] = true;
|
|
|
496 |
}
|
|
|
497 |
|
|
|
498 |
if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.0.14', '<')
|
|
|
499 |
|| !version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.1.1', '<')
|
|
|
500 |
) {
|
|
|
501 |
$this->supported['savepoints'] = true;
|
|
|
502 |
}
|
|
|
503 |
|
|
|
504 |
if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '4.0.11', '<')) {
|
|
|
505 |
$this->start_transaction = true;
|
|
|
506 |
}
|
|
|
507 |
|
|
|
508 |
if (!version_compare($server_info['major'].'.'.$server_info['minor'].'.'.$server_info['patch'], '5.0.3', '<')) {
|
|
|
509 |
$this->varchar_max_length = 65532;
|
|
|
510 |
}
|
|
|
511 |
}
|
|
|
512 |
|
|
|
513 |
return MDB2_OK;
|
|
|
514 |
}
|
|
|
515 |
// }}}
|
|
|
516 |
// {{{ setCharset()
|
|
|
517 |
|
|
|
518 |
/**
|
|
|
519 |
* Set the charset on the current connection
|
|
|
520 |
*
|
|
|
521 |
* @param string charset
|
|
|
522 |
* @param resource connection handle
|
|
|
523 |
*
|
|
|
524 |
* @return true on success, MDB2 Error Object on failure
|
|
|
525 |
*/
|
|
|
526 |
function setCharset($charset, $connection = null)
|
|
|
527 |
{
|
|
|
528 |
if (is_null($connection)) {
|
|
|
529 |
$connection = $this->getConnection();
|
|
|
530 |
if (PEAR::isError($connection)) {
|
|
|
531 |
return $connection;
|
|
|
532 |
}
|
|
|
533 |
}
|
|
|
534 |
|
|
|
535 |
$query = "SET character_set_client = '".mysql_real_escape_string($charset, $connection)."'";
|
|
|
536 |
$result = @mysql_query($query, $connection);
|
|
|
537 |
if (!$result) {
|
|
|
538 |
return $this->raiseError(null, null, null,
|
|
|
539 |
'Unable to set client charset: '.$charset, __FUNCTION__);
|
|
|
540 |
}
|
|
|
541 |
|
|
|
542 |
return MDB2_OK;
|
|
|
543 |
}
|
|
|
544 |
|
|
|
545 |
// }}}
|
|
|
546 |
// {{{ disconnect()
|
|
|
547 |
|
|
|
548 |
/**
|
|
|
549 |
* Log out and disconnect from the database.
|
|
|
550 |
*
|
|
|
551 |
* @param boolean $force if the disconnect should be forced even if the
|
|
|
552 |
* connection is opened persistently
|
|
|
553 |
* @return mixed true on success, false if not connected and error
|
|
|
554 |
* object on error
|
|
|
555 |
* @access public
|
|
|
556 |
*/
|
|
|
557 |
function disconnect($force = true)
|
|
|
558 |
{
|
|
|
559 |
if (is_resource($this->connection)) {
|
|
|
560 |
if ($this->in_transaction) {
|
|
|
561 |
$dsn = $this->dsn;
|
|
|
562 |
$database_name = $this->database_name;
|
|
|
563 |
$persistent = $this->options['persistent'];
|
|
|
564 |
$this->dsn = $this->connected_dsn;
|
|
|
565 |
$this->database_name = $this->connected_database_name;
|
|
|
566 |
$this->options['persistent'] = $this->opened_persistent;
|
|
|
567 |
$this->rollback();
|
|
|
568 |
$this->dsn = $dsn;
|
|
|
569 |
$this->database_name = $database_name;
|
|
|
570 |
$this->options['persistent'] = $persistent;
|
|
|
571 |
}
|
|
|
572 |
|
|
|
573 |
if (!$this->opened_persistent || $force) {
|
|
|
574 |
@mysql_close($this->connection);
|
|
|
575 |
}
|
|
|
576 |
}
|
|
|
577 |
return parent::disconnect($force);
|
|
|
578 |
}
|
|
|
579 |
|
|
|
580 |
// }}}
|
|
|
581 |
// {{{ _doQuery()
|
|
|
582 |
|
|
|
583 |
/**
|
|
|
584 |
* Execute a query
|
|
|
585 |
* @param string $query query
|
|
|
586 |
* @param boolean $is_manip if the query is a manipulation query
|
|
|
587 |
* @param resource $connection
|
|
|
588 |
* @param string $database_name
|
|
|
589 |
* @return result or error object
|
|
|
590 |
* @access protected
|
|
|
591 |
*/
|
|
|
592 |
function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null)
|
|
|
593 |
{
|
|
|
594 |
$this->last_query = $query;
|
|
|
595 |
$result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre'));
|
|
|
596 |
if ($result) {
|
|
|
597 |
if (PEAR::isError($result)) {
|
|
|
598 |
return $result;
|
|
|
599 |
}
|
|
|
600 |
$query = $result;
|
|
|
601 |
}
|
|
|
602 |
if ($this->options['disable_query']) {
|
|
|
603 |
$result = $is_manip ? 0 : null;
|
|
|
604 |
return $result;
|
|
|
605 |
}
|
|
|
606 |
|
|
|
607 |
if (is_null($connection)) {
|
|
|
608 |
$connection = $this->getConnection();
|
|
|
609 |
if (PEAR::isError($connection)) {
|
|
|
610 |
return $connection;
|
|
|
611 |
}
|
|
|
612 |
}
|
|
|
613 |
if (is_null($database_name)) {
|
|
|
614 |
$database_name = $this->database_name;
|
|
|
615 |
}
|
|
|
616 |
|
|
|
617 |
if ($database_name) {
|
|
|
618 |
if ($database_name != $this->connected_database_name) {
|
|
|
619 |
if (!@mysql_select_db($database_name, $connection)) {
|
|
|
620 |
$err = $this->raiseError(null, null, null,
|
|
|
621 |
'Could not select the database: '.$database_name, __FUNCTION__);
|
|
|
622 |
return $err;
|
|
|
623 |
}
|
|
|
624 |
$this->connected_database_name = $database_name;
|
|
|
625 |
}
|
|
|
626 |
}
|
|
|
627 |
|
|
|
628 |
$function = $this->options['result_buffering']
|
|
|
629 |
? 'mysql_query' : 'mysql_unbuffered_query';
|
|
|
630 |
$result = @$function($query, $connection);
|
|
|
631 |
if (!$result) {
|
|
|
632 |
$err =& $this->raiseError(null, null, null,
|
|
|
633 |
'Could not execute statement', __FUNCTION__);
|
|
|
634 |
return $err;
|
|
|
635 |
}
|
|
|
636 |
|
|
|
637 |
$this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result));
|
|
|
638 |
return $result;
|
|
|
639 |
}
|
|
|
640 |
|
|
|
641 |
// }}}
|
|
|
642 |
// {{{ _affectedRows()
|
|
|
643 |
|
|
|
644 |
/**
|
|
|
645 |
* Returns the number of rows affected
|
|
|
646 |
*
|
|
|
647 |
* @param resource $result
|
|
|
648 |
* @param resource $connection
|
|
|
649 |
* @return mixed MDB2 Error Object or the number of rows affected
|
|
|
650 |
* @access private
|
|
|
651 |
*/
|
|
|
652 |
function _affectedRows($connection, $result = null)
|
|
|
653 |
{
|
|
|
654 |
if (is_null($connection)) {
|
|
|
655 |
$connection = $this->getConnection();
|
|
|
656 |
if (PEAR::isError($connection)) {
|
|
|
657 |
return $connection;
|
|
|
658 |
}
|
|
|
659 |
}
|
|
|
660 |
return @mysql_affected_rows($connection);
|
|
|
661 |
}
|
|
|
662 |
|
|
|
663 |
// }}}
|
|
|
664 |
// {{{ _modifyQuery()
|
|
|
665 |
|
|
|
666 |
/**
|
|
|
667 |
* Changes a query string for various DBMS specific reasons
|
|
|
668 |
*
|
|
|
669 |
* @param string $query query to modify
|
|
|
670 |
* @param boolean $is_manip if it is a DML query
|
|
|
671 |
* @param integer $limit limit the number of rows
|
|
|
672 |
* @param integer $offset start reading from given offset
|
|
|
673 |
* @return string modified query
|
|
|
674 |
* @access protected
|
|
|
675 |
*/
|
|
|
676 |
function _modifyQuery($query, $is_manip, $limit, $offset)
|
|
|
677 |
{
|
|
|
678 |
if ($this->options['portability'] & MDB2_PORTABILITY_DELETE_COUNT) {
|
|
|
679 |
// "DELETE FROM table" gives 0 affected rows in MySQL.
|
|
|
680 |
// This little hack lets you know how many rows were deleted.
|
|
|
681 |
if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
|
|
|
682 |
$query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
|
|
|
683 |
'DELETE FROM \1 WHERE 1=1', $query);
|
|
|
684 |
}
|
|
|
685 |
}
|
|
|
686 |
if ($limit > 0
|
|
|
687 |
&& !preg_match('/LIMIT\s*\d(\s*(,|OFFSET)\s*\d+)?/i', $query)
|
|
|
688 |
) {
|
|
|
689 |
$query = rtrim($query);
|
|
|
690 |
if (substr($query, -1) == ';') {
|
|
|
691 |
$query = substr($query, 0, -1);
|
|
|
692 |
}
|
|
|
693 |
if ($is_manip) {
|
|
|
694 |
return $query . " LIMIT $limit";
|
|
|
695 |
} else {
|
|
|
696 |
return $query . " LIMIT $offset, $limit";
|
|
|
697 |
}
|
|
|
698 |
}
|
|
|
699 |
return $query;
|
|
|
700 |
}
|
|
|
701 |
|
|
|
702 |
// }}}
|
|
|
703 |
// {{{ getServerVersion()
|
|
|
704 |
|
|
|
705 |
/**
|
|
|
706 |
* return version information about the server
|
|
|
707 |
*
|
|
|
708 |
* @param string $native determines if the raw version string should be returned
|
|
|
709 |
* @return mixed array/string with version information or MDB2 error object
|
|
|
710 |
* @access public
|
|
|
711 |
*/
|
|
|
712 |
function getServerVersion($native = false)
|
|
|
713 |
{
|
|
|
714 |
$connection = $this->getConnection();
|
|
|
715 |
if (PEAR::isError($connection)) {
|
|
|
716 |
return $connection;
|
|
|
717 |
}
|
|
|
718 |
if ($this->connected_server_info) {
|
|
|
719 |
$server_info = $this->connected_server_info;
|
|
|
720 |
} else {
|
|
|
721 |
$server_info = @mysql_get_server_info($connection);
|
|
|
722 |
}
|
|
|
723 |
if (!$server_info) {
|
|
|
724 |
return $this->raiseError(null, null, null,
|
|
|
725 |
'Could not get server information', __FUNCTION__);
|
|
|
726 |
}
|
|
|
727 |
// cache server_info
|
|
|
728 |
$this->connected_server_info = $server_info;
|
|
|
729 |
if (!$native) {
|
|
|
730 |
$tmp = explode('.', $server_info, 3);
|
|
|
731 |
if (isset($tmp[2]) && strpos($tmp[2], '-')) {
|
|
|
732 |
$tmp2 = explode('-', @$tmp[2], 2);
|
|
|
733 |
} else {
|
|
|
734 |
$tmp2[0] = isset($tmp[2]) ? $tmp[2] : null;
|
|
|
735 |
$tmp2[1] = null;
|
|
|
736 |
}
|
|
|
737 |
$server_info = array(
|
|
|
738 |
'major' => isset($tmp[0]) ? $tmp[0] : null,
|
|
|
739 |
'minor' => isset($tmp[1]) ? $tmp[1] : null,
|
|
|
740 |
'patch' => $tmp2[0],
|
|
|
741 |
'extra' => $tmp2[1],
|
|
|
742 |
'native' => $server_info,
|
|
|
743 |
);
|
|
|
744 |
}
|
|
|
745 |
return $server_info;
|
|
|
746 |
}
|
|
|
747 |
|
|
|
748 |
// }}}
|
|
|
749 |
// {{{ prepare()
|
|
|
750 |
|
|
|
751 |
/**
|
|
|
752 |
* Prepares a query for multiple execution with execute().
|
|
|
753 |
* With some database backends, this is emulated.
|
|
|
754 |
* prepare() requires a generic query as string like
|
|
|
755 |
* 'INSERT INTO numbers VALUES(?,?)' or
|
|
|
756 |
* 'INSERT INTO numbers VALUES(:foo,:bar)'.
|
|
|
757 |
* The ? and :[a-zA-Z] and are placeholders which can be set using
|
|
|
758 |
* bindParam() and the query can be send off using the execute() method.
|
|
|
759 |
*
|
|
|
760 |
* @param string $query the query to prepare
|
|
|
761 |
* @param mixed $types array that contains the types of the placeholders
|
|
|
762 |
* @param mixed $result_types array that contains the types of the columns in
|
|
|
763 |
* the result set or MDB2_PREPARE_RESULT, if set to
|
|
|
764 |
* MDB2_PREPARE_MANIP the query is handled as a manipulation query
|
|
|
765 |
* @param mixed $lobs key (field) value (parameter) pair for all lob placeholders
|
|
|
766 |
* @return mixed resource handle for the prepared query on success, a MDB2
|
|
|
767 |
* error on failure
|
|
|
768 |
* @access public
|
|
|
769 |
* @see bindParam, execute
|
|
|
770 |
*/
|
|
|
771 |
function &prepare($query, $types = null, $result_types = null, $lobs = array())
|
|
|
772 |
{
|
|
|
773 |
if ($this->options['emulate_prepared']
|
|
|
774 |
|| $this->supported['prepared_statements'] !== true
|
|
|
775 |
) {
|
|
|
776 |
$obj =& parent::prepare($query, $types, $result_types, $lobs);
|
|
|
777 |
return $obj;
|
|
|
778 |
}
|
|
|
779 |
$is_manip = ($result_types === MDB2_PREPARE_MANIP);
|
|
|
780 |
$offset = $this->offset;
|
|
|
781 |
$limit = $this->limit;
|
|
|
782 |
$this->offset = $this->limit = 0;
|
|
|
783 |
$query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
|
|
|
784 |
$result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre'));
|
|
|
785 |
if ($result) {
|
|
|
786 |
if (PEAR::isError($result)) {
|
|
|
787 |
return $result;
|
|
|
788 |
}
|
|
|
789 |
$query = $result;
|
|
|
790 |
}
|
|
|
791 |
$placeholder_type_guess = $placeholder_type = null;
|
|
|
792 |
$question = '?';
|
|
|
793 |
$colon = ':';
|
|
|
794 |
$positions = array();
|
|
|
795 |
$position = 0;
|
|
|
796 |
while ($position < strlen($query)) {
|
|
|
797 |
$q_position = strpos($query, $question, $position);
|
|
|
798 |
$c_position = strpos($query, $colon, $position);
|
|
|
799 |
if ($q_position && $c_position) {
|
|
|
800 |
$p_position = min($q_position, $c_position);
|
|
|
801 |
} elseif ($q_position) {
|
|
|
802 |
$p_position = $q_position;
|
|
|
803 |
} elseif ($c_position) {
|
|
|
804 |
$p_position = $c_position;
|
|
|
805 |
} else {
|
|
|
806 |
break;
|
|
|
807 |
}
|
|
|
808 |
if (is_null($placeholder_type)) {
|
|
|
809 |
$placeholder_type_guess = $query[$p_position];
|
|
|
810 |
}
|
|
|
811 |
|
|
|
812 |
$new_pos = $this->_skipDelimitedStrings($query, $position, $p_position);
|
|
|
813 |
if (PEAR::isError($new_pos)) {
|
|
|
814 |
return $new_pos;
|
|
|
815 |
}
|
|
|
816 |
if ($new_pos != $position) {
|
|
|
817 |
$position = $new_pos;
|
|
|
818 |
continue; //evaluate again starting from the new position
|
|
|
819 |
}
|
|
|
820 |
|
|
|
821 |
if ($query[$position] == $placeholder_type_guess) {
|
|
|
822 |
if (is_null($placeholder_type)) {
|
|
|
823 |
$placeholder_type = $query[$p_position];
|
|
|
824 |
$question = $colon = $placeholder_type;
|
|
|
825 |
}
|
|
|
826 |
if ($placeholder_type == ':') {
|
|
|
827 |
$parameter = preg_replace('/^.{'.($position+1).'}([a-z0-9_]+).*$/si', '\\1', $query);
|
|
|
828 |
if ($parameter === '') {
|
|
|
829 |
$err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
|
|
|
830 |
'named parameter with an empty name', __FUNCTION__);
|
|
|
831 |
return $err;
|
|
|
832 |
}
|
|
|
833 |
$positions[$p_position] = $parameter;
|
|
|
834 |
$query = substr_replace($query, '?', $position, strlen($parameter)+1);
|
|
|
835 |
} else {
|
|
|
836 |
$positions[$p_position] = count($positions);
|
|
|
837 |
}
|
|
|
838 |
$position = $p_position + 1;
|
|
|
839 |
} else {
|
|
|
840 |
$position = $p_position;
|
|
|
841 |
}
|
|
|
842 |
}
|
|
|
843 |
$connection = $this->getConnection();
|
|
|
844 |
if (PEAR::isError($connection)) {
|
|
|
845 |
return $connection;
|
|
|
846 |
}
|
|
|
847 |
$statement_name = sprintf($this->options['statement_format'], $this->phptype, md5(time() + rand()));
|
|
|
848 |
$query = "PREPARE $statement_name FROM ".$this->quote($query, 'text');
|
|
|
849 |
$statement =& $this->_doQuery($query, true, $connection);
|
|
|
850 |
if (PEAR::isError($statement)) {
|
|
|
851 |
return $statement;
|
|
|
852 |
}
|
|
|
853 |
|
|
|
854 |
$class_name = 'MDB2_Statement_'.$this->phptype;
|
|
|
855 |
$obj =& new $class_name($this, $statement_name, $positions, $query, $types, $result_types, $is_manip, $limit, $offset);
|
|
|
856 |
$this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj));
|
|
|
857 |
return $obj;
|
|
|
858 |
}
|
|
|
859 |
|
|
|
860 |
// }}}
|
|
|
861 |
// {{{ replace()
|
|
|
862 |
|
|
|
863 |
/**
|
|
|
864 |
* Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT
|
|
|
865 |
* query, except that if there is already a row in the table with the same
|
|
|
866 |
* key field values, the REPLACE query just updates its values instead of
|
|
|
867 |
* inserting a new row.
|
|
|
868 |
*
|
|
|
869 |
* The REPLACE type of query does not make part of the SQL standards. Since
|
|
|
870 |
* practically only MySQL implements it natively, this type of query is
|
|
|
871 |
* emulated through this method for other DBMS using standard types of
|
|
|
872 |
* queries inside a transaction to assure the atomicity of the operation.
|
|
|
873 |
*
|
|
|
874 |
* @access public
|
|
|
875 |
*
|
|
|
876 |
* @param string $table name of the table on which the REPLACE query will
|
|
|
877 |
* be executed.
|
|
|
878 |
* @param array $fields associative array that describes the fields and the
|
|
|
879 |
* values that will be inserted or updated in the specified table. The
|
|
|
880 |
* indexes of the array are the names of all the fields of the table. The
|
|
|
881 |
* values of the array are also associative arrays that describe the
|
|
|
882 |
* values and other properties of the table fields.
|
|
|
883 |
*
|
|
|
884 |
* Here follows a list of field properties that need to be specified:
|
|
|
885 |
*
|
|
|
886 |
* value:
|
|
|
887 |
* Value to be assigned to the specified field. This value may be
|
|
|
888 |
* of specified in database independent type format as this
|
|
|
889 |
* function can perform the necessary datatype conversions.
|
|
|
890 |
*
|
|
|
891 |
* Default:
|
|
|
892 |
* this property is required unless the Null property
|
|
|
893 |
* is set to 1.
|
|
|
894 |
*
|
|
|
895 |
* type
|
|
|
896 |
* Name of the type of the field. Currently, all types Metabase
|
|
|
897 |
* are supported except for clob and blob.
|
|
|
898 |
*
|
|
|
899 |
* Default: no type conversion
|
|
|
900 |
*
|
|
|
901 |
* null
|
|
|
902 |
* Boolean property that indicates that the value for this field
|
|
|
903 |
* should be set to null.
|
|
|
904 |
*
|
|
|
905 |
* The default value for fields missing in INSERT queries may be
|
|
|
906 |
* specified the definition of a table. Often, the default value
|
|
|
907 |
* is already null, but since the REPLACE may be emulated using
|
|
|
908 |
* an UPDATE query, make sure that all fields of the table are
|
|
|
909 |
* listed in this function argument array.
|
|
|
910 |
*
|
|
|
911 |
* Default: 0
|
|
|
912 |
*
|
|
|
913 |
* key
|
|
|
914 |
* Boolean property that indicates that this field should be
|
|
|
915 |
* handled as a primary key or at least as part of the compound
|
|
|
916 |
* unique index of the table that will determine the row that will
|
|
|
917 |
* updated if it exists or inserted a new row otherwise.
|
|
|
918 |
*
|
|
|
919 |
* This function will fail if no key field is specified or if the
|
|
|
920 |
* value of a key field is set to null because fields that are
|
|
|
921 |
* part of unique index they may not be null.
|
|
|
922 |
*
|
|
|
923 |
* Default: 0
|
|
|
924 |
*
|
|
|
925 |
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
|
926 |
*/
|
|
|
927 |
function replace($table, $fields)
|
|
|
928 |
{
|
|
|
929 |
$count = count($fields);
|
|
|
930 |
$query = $values = '';
|
|
|
931 |
$keys = $colnum = 0;
|
|
|
932 |
for (reset($fields); $colnum < $count; next($fields), $colnum++) {
|
|
|
933 |
$name = key($fields);
|
|
|
934 |
if ($colnum > 0) {
|
|
|
935 |
$query .= ',';
|
|
|
936 |
$values.= ',';
|
|
|
937 |
}
|
|
|
938 |
$query.= $name;
|
|
|
939 |
if (isset($fields[$name]['null']) && $fields[$name]['null']) {
|
|
|
940 |
$value = 'NULL';
|
|
|
941 |
} else {
|
|
|
942 |
$type = isset($fields[$name]['type']) ? $fields[$name]['type'] : null;
|
|
|
943 |
$value = $this->quote($fields[$name]['value'], $type);
|
|
|
944 |
}
|
|
|
945 |
$values.= $value;
|
|
|
946 |
if (isset($fields[$name]['key']) && $fields[$name]['key']) {
|
|
|
947 |
if ($value === 'NULL') {
|
|
|
948 |
return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
|
|
|
949 |
'key value '.$name.' may not be NULL', __FUNCTION__);
|
|
|
950 |
}
|
|
|
951 |
$keys++;
|
|
|
952 |
}
|
|
|
953 |
}
|
|
|
954 |
if ($keys == 0) {
|
|
|
955 |
return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
|
|
|
956 |
'not specified which fields are keys', __FUNCTION__);
|
|
|
957 |
}
|
|
|
958 |
|
|
|
959 |
$connection = $this->getConnection();
|
|
|
960 |
if (PEAR::isError($connection)) {
|
|
|
961 |
return $connection;
|
|
|
962 |
}
|
|
|
963 |
|
|
|
964 |
$query = "REPLACE INTO $table ($query) VALUES ($values)";
|
|
|
965 |
$result =& $this->_doQuery($query, true, $connection);
|
|
|
966 |
if (PEAR::isError($result)) {
|
|
|
967 |
return $result;
|
|
|
968 |
}
|
|
|
969 |
return $this->_affectedRows($connection, $result);
|
|
|
970 |
}
|
|
|
971 |
|
|
|
972 |
// }}}
|
|
|
973 |
// {{{ nextID()
|
|
|
974 |
|
|
|
975 |
/**
|
|
|
976 |
* Returns the next free id of a sequence
|
|
|
977 |
*
|
|
|
978 |
* @param string $seq_name name of the sequence
|
|
|
979 |
* @param boolean $ondemand when true the sequence is
|
|
|
980 |
* automatic created, if it
|
|
|
981 |
* not exists
|
|
|
982 |
*
|
|
|
983 |
* @return mixed MDB2 Error Object or id
|
|
|
984 |
* @access public
|
|
|
985 |
*/
|
|
|
986 |
function nextID($seq_name, $ondemand = true)
|
|
|
987 |
{
|
|
|
988 |
$sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
|
|
|
989 |
$seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true);
|
|
|
990 |
$query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (NULL)";
|
|
|
991 |
$this->expectError(MDB2_ERROR_NOSUCHTABLE);
|
|
|
992 |
$result =& $this->_doQuery($query, true);
|
|
|
993 |
$this->popExpect();
|
|
|
994 |
if (PEAR::isError($result)) {
|
|
|
995 |
if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
|
|
|
996 |
$this->loadModule('Manager', null, true);
|
|
|
997 |
$result = $this->manager->createSequence($seq_name);
|
|
|
998 |
if (PEAR::isError($result)) {
|
|
|
999 |
return $this->raiseError($result, null, null,
|
|
|
1000 |
'on demand sequence '.$seq_name.' could not be created', __FUNCTION__);
|
|
|
1001 |
} else {
|
|
|
1002 |
return $this->nextID($seq_name, false);
|
|
|
1003 |
}
|
|
|
1004 |
}
|
|
|
1005 |
return $result;
|
|
|
1006 |
}
|
|
|
1007 |
$value = $this->lastInsertID();
|
|
|
1008 |
if (is_numeric($value)) {
|
|
|
1009 |
$query = "DELETE FROM $sequence_name WHERE $seqcol_name < $value";
|
|
|
1010 |
$result =& $this->_doQuery($query, true);
|
|
|
1011 |
if (PEAR::isError($result)) {
|
|
|
1012 |
$this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name;
|
|
|
1013 |
}
|
|
|
1014 |
}
|
|
|
1015 |
return $value;
|
|
|
1016 |
}
|
|
|
1017 |
|
|
|
1018 |
// }}}
|
|
|
1019 |
// {{{ lastInsertID()
|
|
|
1020 |
|
|
|
1021 |
/**
|
|
|
1022 |
* Returns the autoincrement ID if supported or $id or fetches the current
|
|
|
1023 |
* ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
|
|
|
1024 |
*
|
|
|
1025 |
* @param string $table name of the table into which a new row was inserted
|
|
|
1026 |
* @param string $field name of the field into which a new row was inserted
|
|
|
1027 |
* @return mixed MDB2 Error Object or id
|
|
|
1028 |
* @access public
|
|
|
1029 |
*/
|
|
|
1030 |
function lastInsertID($table = null, $field = null)
|
|
|
1031 |
{
|
|
|
1032 |
// not using mysql_insert_id() due to http://pear.php.net/bugs/bug.php?id=8051
|
|
|
1033 |
return $this->queryOne('SELECT LAST_INSERT_ID()', 'integer');
|
|
|
1034 |
}
|
|
|
1035 |
|
|
|
1036 |
// }}}
|
|
|
1037 |
// {{{ currID()
|
|
|
1038 |
|
|
|
1039 |
/**
|
|
|
1040 |
* Returns the current id of a sequence
|
|
|
1041 |
*
|
|
|
1042 |
* @param string $seq_name name of the sequence
|
|
|
1043 |
* @return mixed MDB2 Error Object or id
|
|
|
1044 |
* @access public
|
|
|
1045 |
*/
|
|
|
1046 |
function currID($seq_name)
|
|
|
1047 |
{
|
|
|
1048 |
$sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
|
|
|
1049 |
$seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true);
|
|
|
1050 |
$query = "SELECT MAX($seqcol_name) FROM $sequence_name";
|
|
|
1051 |
return $this->queryOne($query, 'integer');
|
|
|
1052 |
}
|
|
|
1053 |
}
|
|
|
1054 |
|
|
|
1055 |
/**
|
|
|
1056 |
* MDB2 MySQL result driver
|
|
|
1057 |
*
|
|
|
1058 |
* @package MDB2
|
|
|
1059 |
* @category Database
|
|
|
1060 |
* @author Lukas Smith <smith@pooteeweet.org>
|
|
|
1061 |
*/
|
|
|
1062 |
class MDB2_Result_mysql extends MDB2_Result_Common
|
|
|
1063 |
{
|
|
|
1064 |
// }}}
|
|
|
1065 |
// {{{ fetchRow()
|
|
|
1066 |
|
|
|
1067 |
/**
|
|
|
1068 |
* Fetch a row and insert the data into an existing array.
|
|
|
1069 |
*
|
|
|
1070 |
* @param int $fetchmode how the array data should be indexed
|
|
|
1071 |
* @param int $rownum number of the row where the data can be found
|
|
|
1072 |
* @return int data array on success, a MDB2 error on failure
|
|
|
1073 |
* @access public
|
|
|
1074 |
*/
|
|
|
1075 |
function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
|
|
|
1076 |
{
|
|
|
1077 |
if (!is_null($rownum)) {
|
|
|
1078 |
$seek = $this->seek($rownum);
|
|
|
1079 |
if (PEAR::isError($seek)) {
|
|
|
1080 |
return $seek;
|
|
|
1081 |
}
|
|
|
1082 |
}
|
|
|
1083 |
if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
|
|
|
1084 |
$fetchmode = $this->db->fetchmode;
|
|
|
1085 |
}
|
|
|
1086 |
if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
|
|
|
1087 |
$row = @mysql_fetch_assoc($this->result);
|
|
|
1088 |
if (is_array($row)
|
|
|
1089 |
&& $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
|
|
|
1090 |
) {
|
|
|
1091 |
$row = array_change_key_case($row, $this->db->options['field_case']);
|
|
|
1092 |
}
|
|
|
1093 |
} else {
|
|
|
1094 |
$row = @mysql_fetch_row($this->result);
|
|
|
1095 |
}
|
|
|
1096 |
|
|
|
1097 |
if (!$row) {
|
|
|
1098 |
if ($this->result === false) {
|
|
|
1099 |
$err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
|
1100 |
'resultset has already been freed', __FUNCTION__);
|
|
|
1101 |
return $err;
|
|
|
1102 |
}
|
|
|
1103 |
$null = null;
|
|
|
1104 |
return $null;
|
|
|
1105 |
}
|
|
|
1106 |
$mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL;
|
|
|
1107 |
if ($mode) {
|
|
|
1108 |
$this->db->_fixResultArrayValues($row, $mode);
|
|
|
1109 |
}
|
|
|
1110 |
if (!empty($this->types)) {
|
|
|
1111 |
$row = $this->db->datatype->convertResultRow($this->types, $row, false);
|
|
|
1112 |
}
|
|
|
1113 |
if (!empty($this->values)) {
|
|
|
1114 |
$this->_assignBindColumns($row);
|
|
|
1115 |
}
|
|
|
1116 |
if ($fetchmode === MDB2_FETCHMODE_OBJECT) {
|
|
|
1117 |
$object_class = $this->db->options['fetch_class'];
|
|
|
1118 |
if ($object_class == 'stdClass') {
|
|
|
1119 |
$row = (object) $row;
|
|
|
1120 |
} else {
|
|
|
1121 |
$row = &new $object_class($row);
|
|
|
1122 |
}
|
|
|
1123 |
}
|
|
|
1124 |
++$this->rownum;
|
|
|
1125 |
return $row;
|
|
|
1126 |
}
|
|
|
1127 |
|
|
|
1128 |
// }}}
|
|
|
1129 |
// {{{ _getColumnNames()
|
|
|
1130 |
|
|
|
1131 |
/**
|
|
|
1132 |
* Retrieve the names of columns returned by the DBMS in a query result.
|
|
|
1133 |
*
|
|
|
1134 |
* @return mixed Array variable that holds the names of columns as keys
|
|
|
1135 |
* or an MDB2 error on failure.
|
|
|
1136 |
* Some DBMS may not return any columns when the result set
|
|
|
1137 |
* does not contain any rows.
|
|
|
1138 |
* @access private
|
|
|
1139 |
*/
|
|
|
1140 |
function _getColumnNames()
|
|
|
1141 |
{
|
|
|
1142 |
$columns = array();
|
|
|
1143 |
$numcols = $this->numCols();
|
|
|
1144 |
if (PEAR::isError($numcols)) {
|
|
|
1145 |
return $numcols;
|
|
|
1146 |
}
|
|
|
1147 |
for ($column = 0; $column < $numcols; $column++) {
|
|
|
1148 |
$column_name = @mysql_field_name($this->result, $column);
|
|
|
1149 |
$columns[$column_name] = $column;
|
|
|
1150 |
}
|
|
|
1151 |
if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
|
|
1152 |
$columns = array_change_key_case($columns, $this->db->options['field_case']);
|
|
|
1153 |
}
|
|
|
1154 |
return $columns;
|
|
|
1155 |
}
|
|
|
1156 |
|
|
|
1157 |
// }}}
|
|
|
1158 |
// {{{ numCols()
|
|
|
1159 |
|
|
|
1160 |
/**
|
|
|
1161 |
* Count the number of columns returned by the DBMS in a query result.
|
|
|
1162 |
*
|
|
|
1163 |
* @return mixed integer value with the number of columns, a MDB2 error
|
|
|
1164 |
* on failure
|
|
|
1165 |
* @access public
|
|
|
1166 |
*/
|
|
|
1167 |
function numCols()
|
|
|
1168 |
{
|
|
|
1169 |
$cols = @mysql_num_fields($this->result);
|
|
|
1170 |
if (is_null($cols)) {
|
|
|
1171 |
if ($this->result === false) {
|
|
|
1172 |
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
|
1173 |
'resultset has already been freed', __FUNCTION__);
|
|
|
1174 |
} elseif (is_null($this->result)) {
|
|
|
1175 |
return count($this->types);
|
|
|
1176 |
}
|
|
|
1177 |
return $this->db->raiseError(null, null, null,
|
|
|
1178 |
'Could not get column count', __FUNCTION__);
|
|
|
1179 |
}
|
|
|
1180 |
return $cols;
|
|
|
1181 |
}
|
|
|
1182 |
|
|
|
1183 |
// }}}
|
|
|
1184 |
// {{{ free()
|
|
|
1185 |
|
|
|
1186 |
/**
|
|
|
1187 |
* Free the internal resources associated with result.
|
|
|
1188 |
*
|
|
|
1189 |
* @return boolean true on success, false if result is invalid
|
|
|
1190 |
* @access public
|
|
|
1191 |
*/
|
|
|
1192 |
function free()
|
|
|
1193 |
{
|
|
|
1194 |
if (is_resource($this->result) && $this->db->connection) {
|
|
|
1195 |
$free = @mysql_free_result($this->result);
|
|
|
1196 |
if ($free === false) {
|
|
|
1197 |
return $this->db->raiseError(null, null, null,
|
|
|
1198 |
'Could not free result', __FUNCTION__);
|
|
|
1199 |
}
|
|
|
1200 |
}
|
|
|
1201 |
$this->result = false;
|
|
|
1202 |
return MDB2_OK;
|
|
|
1203 |
}
|
|
|
1204 |
}
|
|
|
1205 |
|
|
|
1206 |
/**
|
|
|
1207 |
* MDB2 MySQL buffered result driver
|
|
|
1208 |
*
|
|
|
1209 |
* @package MDB2
|
|
|
1210 |
* @category Database
|
|
|
1211 |
* @author Lukas Smith <smith@pooteeweet.org>
|
|
|
1212 |
*/
|
|
|
1213 |
class MDB2_BufferedResult_mysql extends MDB2_Result_mysql
|
|
|
1214 |
{
|
|
|
1215 |
// }}}
|
|
|
1216 |
// {{{ seek()
|
|
|
1217 |
|
|
|
1218 |
/**
|
|
|
1219 |
* Seek to a specific row in a result set
|
|
|
1220 |
*
|
|
|
1221 |
* @param int $rownum number of the row where the data can be found
|
|
|
1222 |
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
|
1223 |
* @access public
|
|
|
1224 |
*/
|
|
|
1225 |
function seek($rownum = 0)
|
|
|
1226 |
{
|
|
|
1227 |
if ($this->rownum != ($rownum - 1) && !@mysql_data_seek($this->result, $rownum)) {
|
|
|
1228 |
if ($this->result === false) {
|
|
|
1229 |
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
|
1230 |
'resultset has already been freed', __FUNCTION__);
|
|
|
1231 |
} elseif (is_null($this->result)) {
|
|
|
1232 |
return MDB2_OK;
|
|
|
1233 |
}
|
|
|
1234 |
return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
|
|
|
1235 |
'tried to seek to an invalid row number ('.$rownum.')', __FUNCTION__);
|
|
|
1236 |
}
|
|
|
1237 |
$this->rownum = $rownum - 1;
|
|
|
1238 |
return MDB2_OK;
|
|
|
1239 |
}
|
|
|
1240 |
|
|
|
1241 |
// }}}
|
|
|
1242 |
// {{{ valid()
|
|
|
1243 |
|
|
|
1244 |
/**
|
|
|
1245 |
* Check if the end of the result set has been reached
|
|
|
1246 |
*
|
|
|
1247 |
* @return mixed true or false on sucess, a MDB2 error on failure
|
|
|
1248 |
* @access public
|
|
|
1249 |
*/
|
|
|
1250 |
function valid()
|
|
|
1251 |
{
|
|
|
1252 |
$numrows = $this->numRows();
|
|
|
1253 |
if (PEAR::isError($numrows)) {
|
|
|
1254 |
return $numrows;
|
|
|
1255 |
}
|
|
|
1256 |
return $this->rownum < ($numrows - 1);
|
|
|
1257 |
}
|
|
|
1258 |
|
|
|
1259 |
// }}}
|
|
|
1260 |
// {{{ numRows()
|
|
|
1261 |
|
|
|
1262 |
/**
|
|
|
1263 |
* Returns the number of rows in a result object
|
|
|
1264 |
*
|
|
|
1265 |
* @return mixed MDB2 Error Object or the number of rows
|
|
|
1266 |
* @access public
|
|
|
1267 |
*/
|
|
|
1268 |
function numRows()
|
|
|
1269 |
{
|
|
|
1270 |
$rows = @mysql_num_rows($this->result);
|
|
|
1271 |
if (is_null($rows)) {
|
|
|
1272 |
if ($this->result === false) {
|
|
|
1273 |
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
|
1274 |
'resultset has already been freed', __FUNCTION__);
|
|
|
1275 |
} elseif (is_null($this->result)) {
|
|
|
1276 |
return 0;
|
|
|
1277 |
}
|
|
|
1278 |
return $this->db->raiseError(null, null, null,
|
|
|
1279 |
'Could not get row count', __FUNCTION__);
|
|
|
1280 |
}
|
|
|
1281 |
return $rows;
|
|
|
1282 |
}
|
|
|
1283 |
}
|
|
|
1284 |
|
|
|
1285 |
/**
|
|
|
1286 |
* MDB2 MySQL statement driver
|
|
|
1287 |
*
|
|
|
1288 |
* @package MDB2
|
|
|
1289 |
* @category Database
|
|
|
1290 |
* @author Lukas Smith <smith@pooteeweet.org>
|
|
|
1291 |
*/
|
|
|
1292 |
class MDB2_Statement_mysql extends MDB2_Statement_Common
|
|
|
1293 |
{
|
|
|
1294 |
// {{{ _execute()
|
|
|
1295 |
|
|
|
1296 |
/**
|
|
|
1297 |
* Execute a prepared query statement helper method.
|
|
|
1298 |
*
|
|
|
1299 |
* @param mixed $result_class string which specifies which result class to use
|
|
|
1300 |
* @param mixed $result_wrap_class string which specifies which class to wrap results in
|
|
|
1301 |
* @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
|
|
|
1302 |
* @access private
|
|
|
1303 |
*/
|
|
|
1304 |
function &_execute($result_class = true, $result_wrap_class = false)
|
|
|
1305 |
{
|
|
|
1306 |
if (is_null($this->statement)) {
|
|
|
1307 |
$result =& parent::_execute($result_class, $result_wrap_class);
|
|
|
1308 |
return $result;
|
|
|
1309 |
}
|
|
|
1310 |
$this->db->last_query = $this->query;
|
|
|
1311 |
$this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'pre', 'parameters' => $this->values));
|
|
|
1312 |
if ($this->db->getOption('disable_query')) {
|
|
|
1313 |
$result = $this->is_manip ? 0 : null;
|
|
|
1314 |
return $result;
|
|
|
1315 |
}
|
|
|
1316 |
|
|
|
1317 |
$connection = $this->db->getConnection();
|
|
|
1318 |
if (PEAR::isError($connection)) {
|
|
|
1319 |
return $connection;
|
|
|
1320 |
}
|
|
|
1321 |
|
|
|
1322 |
$query = 'EXECUTE '.$this->statement;
|
|
|
1323 |
if (!empty($this->positions)) {
|
|
|
1324 |
$parameters = array();
|
|
|
1325 |
foreach ($this->positions as $parameter) {
|
|
|
1326 |
if (!array_key_exists($parameter, $this->values)) {
|
|
|
1327 |
return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
|
|
|
1328 |
'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
|
|
|
1329 |
}
|
|
|
1330 |
$value = $this->values[$parameter];
|
|
|
1331 |
$type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null;
|
|
|
1332 |
if (is_resource($value) || $type == 'clob' || $type == 'blob') {
|
|
|
1333 |
if (!is_resource($value) && preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) {
|
|
|
1334 |
if ($match[1] == 'file://') {
|
|
|
1335 |
$value = $match[2];
|
|
|
1336 |
}
|
|
|
1337 |
$value = @fopen($value, 'r');
|
|
|
1338 |
$close = true;
|
|
|
1339 |
}
|
|
|
1340 |
if (is_resource($value)) {
|
|
|
1341 |
$data = '';
|
|
|
1342 |
while (!@feof($value)) {
|
|
|
1343 |
$data.= @fread($value, $this->db->options['lob_buffer_length']);
|
|
|
1344 |
}
|
|
|
1345 |
if ($close) {
|
|
|
1346 |
@fclose($value);
|
|
|
1347 |
}
|
|
|
1348 |
$value = $data;
|
|
|
1349 |
}
|
|
|
1350 |
}
|
|
|
1351 |
$param_query = 'SET @'.$parameter.' = '.$this->db->quote($value, $type);
|
|
|
1352 |
$result = $this->db->_doQuery($param_query, true, $connection);
|
|
|
1353 |
if (PEAR::isError($result)) {
|
|
|
1354 |
return $result;
|
|
|
1355 |
}
|
|
|
1356 |
}
|
|
|
1357 |
$query.= ' USING @'.implode(', @', array_values($this->positions));
|
|
|
1358 |
}
|
|
|
1359 |
|
|
|
1360 |
$result = $this->db->_doQuery($query, $this->is_manip, $connection);
|
|
|
1361 |
if (PEAR::isError($result)) {
|
|
|
1362 |
return $result;
|
|
|
1363 |
}
|
|
|
1364 |
|
|
|
1365 |
if ($this->is_manip) {
|
|
|
1366 |
$affected_rows = $this->db->_affectedRows($connection, $result);
|
|
|
1367 |
return $affected_rows;
|
|
|
1368 |
}
|
|
|
1369 |
|
|
|
1370 |
$result =& $this->db->_wrapResult($result, $this->result_types,
|
|
|
1371 |
$result_class, $result_wrap_class, $this->limit, $this->offset);
|
|
|
1372 |
$this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'post', 'result' => $result));
|
|
|
1373 |
return $result;
|
|
|
1374 |
}
|
|
|
1375 |
|
|
|
1376 |
// }}}
|
|
|
1377 |
// {{{ free()
|
|
|
1378 |
|
|
|
1379 |
/**
|
|
|
1380 |
* Release resources allocated for the specified prepared query.
|
|
|
1381 |
*
|
|
|
1382 |
* @return mixed MDB2_OK on success, a MDB2 error on failure
|
|
|
1383 |
* @access public
|
|
|
1384 |
*/
|
|
|
1385 |
function free()
|
|
|
1386 |
{
|
|
|
1387 |
if (is_null($this->positions)) {
|
|
|
1388 |
return $this->db->raiseError(MDB2_ERROR, null, null,
|
|
|
1389 |
'Prepared statement has already been freed', __FUNCTION__);
|
|
|
1390 |
}
|
|
|
1391 |
$result = MDB2_OK;
|
|
|
1392 |
|
|
|
1393 |
if (!is_null($this->statement)) {
|
|
|
1394 |
$connection = $this->db->getConnection();
|
|
|
1395 |
if (PEAR::isError($connection)) {
|
|
|
1396 |
return $connection;
|
|
|
1397 |
}
|
|
|
1398 |
$query = 'DEALLOCATE PREPARE '.$this->statement;
|
|
|
1399 |
$result = $this->db->_doQuery($query, true, $connection);
|
|
|
1400 |
}
|
|
|
1401 |
|
|
|
1402 |
parent::free();
|
|
|
1403 |
return $result;
|
|
|
1404 |
}
|
|
|
1405 |
}
|
|
|
1406 |
?>
|