forked from GNUsocial/gnu-social
1175 lines
40 KiB
PHP
1175 lines
40 KiB
PHP
<?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) 1998-2008 Manuel Lemos, Tomas V.V.Cox, |
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// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann |
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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: Frank M. Kromann <frank@kromann.info> |
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// +----------------------------------------------------------------------+
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// {{{ Class MDB2_Driver_sqlsrv
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/**
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* MDB2 MSSQL Server (native) driver
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*
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* @package MDB2
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* @category Database
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*/
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class MDB2_Driver_sqlsrv 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' => false);
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var $identifier_quoting = array('start' => '[', 'end' => ']', 'escape' => ']');
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var $connection = null;
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// }}}
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// {{{ constructor
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/**
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* Constructor
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*/
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function __construct()
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{
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parent::__construct();
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$this->phptype = 'sqlsrv';
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$this->dbsyntax = 'sqlsrv';
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$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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$this->supported['summary_functions'] = true;
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$this->supported['transactions'] = true;
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$this->supported['order_by_text'] = true;
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$this->supported['savepoints'] = false;
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$this->supported['current_id'] = 'emulated';
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$this->supported['limit_queries'] = 'emulated';
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$this->supported['LOBs'] = true;
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$this->supported['replace'] = 'emulated';
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$this->supported['sub_selects'] = true;
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$this->supported['triggers'] = true;
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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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$this->supported['identifier_quoting'] = false;
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$this->supported['pattern_escaping'] = true;
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$this->supported['new_link'] = true;
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$this->options['DBA_username'] = false;
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$this->options['DBA_password'] = false;
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$this->options['database_device'] = false;
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$this->options['database_size'] = false;
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$this->options['max_identifiers_length'] = 128; // MS Access: 64
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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, $connection = null)
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{
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if (null === $connection) {
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$connection = $this->connection;
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}
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$native_code = null;
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$native_msg = null;
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if ($connection) {
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$retErrors = sqlsrv_errors(SQLSRV_ERR_ALL);
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if ($retErrors !== null) {
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foreach ($retErrors as $arrError) {
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$native_msg .= "SQLState: ".$arrError[ 'SQLSTATE']."\n";
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$native_msg .= "Error Code: ".$arrError[ 'code']."\n";
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$native_msg .= "Message: ".$arrError[ 'message']."\n";
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$native_code = $arrError[ 'code'];
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}
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}
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}
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if (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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102 => MDB2_ERROR_SYNTAX,
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110 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
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155 => MDB2_ERROR_NOSUCHFIELD,
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156 => MDB2_ERROR_SYNTAX,
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170 => MDB2_ERROR_SYNTAX,
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207 => MDB2_ERROR_NOSUCHFIELD,
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208 => MDB2_ERROR_NOSUCHTABLE,
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245 => MDB2_ERROR_INVALID_NUMBER,
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319 => MDB2_ERROR_SYNTAX,
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321 => MDB2_ERROR_NOSUCHFIELD,
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325 => MDB2_ERROR_SYNTAX,
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336 => MDB2_ERROR_SYNTAX,
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515 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
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547 => MDB2_ERROR_CONSTRAINT,
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911 => MDB2_ERROR_NOT_FOUND,
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1018 => MDB2_ERROR_SYNTAX,
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1035 => MDB2_ERROR_SYNTAX,
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1801 => MDB2_ERROR_ALREADY_EXISTS,
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1913 => MDB2_ERROR_ALREADY_EXISTS,
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2209 => MDB2_ERROR_SYNTAX,
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2223 => MDB2_ERROR_SYNTAX,
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2248 => MDB2_ERROR_SYNTAX,
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2256 => MDB2_ERROR_SYNTAX,
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2257 => MDB2_ERROR_SYNTAX,
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2627 => MDB2_ERROR_CONSTRAINT,
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2714 => MDB2_ERROR_ALREADY_EXISTS,
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3607 => MDB2_ERROR_DIVZERO,
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3701 => MDB2_ERROR_NOSUCHTABLE,
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7630 => MDB2_ERROR_SYNTAX,
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8134 => MDB2_ERROR_DIVZERO,
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9303 => MDB2_ERROR_SYNTAX,
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9317 => MDB2_ERROR_SYNTAX,
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9318 => MDB2_ERROR_SYNTAX,
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9331 => MDB2_ERROR_SYNTAX,
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9332 => MDB2_ERROR_SYNTAX,
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15253 => MDB2_ERROR_SYNTAX,
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);
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}
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if (isset($ecode_map[$native_code])) {
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if ($native_code == 3701
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&& preg_match('/Cannot drop the index/i', $native_msg)
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) {
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$error = MDB2_ERROR_NOT_FOUND;
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} else {
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$error = $ecode_map[$native_code];
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}
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}
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}
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return array($error, $native_code, $native_msg);
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}
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// }}}
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// {{{ function escapePattern($text)
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/**
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* Quotes pattern (% and _) characters in a string)
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*
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* @param string the input string to quote
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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 escapePattern($text)
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{
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$text = str_replace("[", "[ [ ]", $text);
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foreach ($this->wildcards as $wildcard) {
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$text = str_replace($wildcard, '[' . $wildcard . ']', $text);
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}
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return $text;
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}
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// }}}
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// {{{ beginTransaction()
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/**
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* Start a transaction or set a savepoint.
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*
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* @param string name of a savepoint to set
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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*
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* @access public
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*/
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function beginTransaction($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 (null !== $savepoint) {
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if (!$this->in_transaction) {
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return $this->raiseError(MDB2_ERROR_INVALID, null, null,
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'savepoint cannot be released when changes are auto committed', __FUNCTION__);
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}
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$query = 'SAVE TRANSACTION '.$savepoint;
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return $this->_doQuery($query, true);
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}
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if ($this->in_transaction) {
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return MDB2_OK; //nothing to do
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}
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if (!$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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if (MDB2::isError(sqlsrv_begin_transaction($this->connection))) {
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return MDB2_ERROR;
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}
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$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 (null !== $savepoint) {
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return MDB2_OK;
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}
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if (MDB2::isError(sqlsrv_commit($this->connection))) {
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return MDB2_ERROR;
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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 (null !== $savepoint) {
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$query = 'ROLLBACK TRANSACTION '.$savepoint;
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return $this->_doQuery($query, true);
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}
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if (MDB2::isError(sqlsrv_rollback($this->connection))) {
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return MDB2_ERROR;
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}
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$this->in_transaction = false;
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return MDB2_OK;
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}
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// }}}
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// {{{ _doConnect()
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/**
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* do the grunt work of the connect
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*
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* @return connection on success or MDB2 Error Object on failure
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* @access protected
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*/
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function _doConnect($username, $password, $database=null, $persistent = false)
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{
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if (!extension_loaded($this->phptype)) {
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return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
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'extension '.$this->phptype.' is not installed PHP', __FUNCTION__);
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}
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$host = $this->dsn['hostspec'] ? $this->dsn['hostspec'] : '.\\SQLEXPRESS';
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$params = array(
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'UID' => $username ? $username : null,
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'PWD' => $password ? $password : null,
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);
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if ($database) {
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$params['Database'] = $database;
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}
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if ($this->dsn['port'] && $this->dsn['port'] != 1433) {
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$host .= ','.$this->dsn['port'];
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}
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$connection = @sqlsrv_connect($host, $params);
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if (!$connection) {
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return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
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'unable to establish a connection', __FUNCTION__, __FUNCTION__);
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}
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if (null !== $database) {
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$this->connected_database_name = $database;
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}
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if (!empty($this->dsn['charset'])) {
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$result = $this->setCharset($this->dsn['charset'], $connection);
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if (MDB2::isError($result)) {
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return $result;
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}
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}
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if (empty($this->dsn['disable_iso_date'])) {
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@sqlsrv_query($connection,'SET DATEFORMAT ymd');
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}
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return $connection;
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}
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// }}}
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// {{{ connect()
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/**
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* Connect to the database
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*
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* @return true on success, MDB2 Error Object on failure
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*/
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function connect()
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{
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if (is_resource($this->connection)) {
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if (MDB2::areEquals($this->connected_dsn, $this->dsn)) {
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return MDB2_OK;
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}
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$this->disconnect(false);
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}
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$connection = $this->_doConnect(
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$this->dsn['username'],
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$this->dsn['password'],
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$this->database_name,
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$this->options['persistent']
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);
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if (MDB2::isError($connection)) {
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return $connection;
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}
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$this->connection = $connection;
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$this->connected_dsn = $this->dsn;
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$this->connected_database_name = $this->database_name;
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$this->opened_persistent = $this->options['persistent'];
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$this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
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return MDB2_OK;
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}
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// }}}
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// {{{ databaseExists()
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/**
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* check if given database name exists?
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*
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* @param string $name name of the database that should be checked
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*
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* @return mixed true/false on success, a MDB2 error on failure
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* @access public
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*/
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function databaseExists($name)
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{
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$connection = $this->_doConnect($this->dsn['username'],$this->dsn['password']);
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if (MDB2::isError($connection)) {
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return MDB2_ERROR_CONNECT_FAILED;
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}
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$result = @sqlsrv_query($connection,'select name from master..sysdatabases where name = \''.strtolower($name).'\'');
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if (@sqlsrv_fetch($result)) {
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return true;
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}
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return MDB2_ERROR_NOT_FOUND;
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}
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// }}}
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// {{{ disconnect()
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/**
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* Log out and disconnect from the database.
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*
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* @param boolean $force if the disconnect should be forced even if the
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* connection is opened persistently
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* @return mixed true on success, false if not connected and error
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* object on error
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* @access public
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*/
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function disconnect($force = true)
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{
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if (is_resource($this->connection)) {
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if ($this->in_transaction) {
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$dsn = $this->dsn;
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$database_name = $this->database_name;
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$persistent = $this->options['persistent'];
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$this->dsn = $this->connected_dsn;
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$this->database_name = $this->connected_database_name;
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$this->options['persistent'] = $this->opened_persistent;
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$this->rollback();
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$this->dsn = $dsn;
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$this->database_name = $database_name;
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$this->options['persistent'] = $persistent;
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}
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@sqlsrv_close($this->connection);
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}
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return parent::disconnect($force);
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}
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// }}}
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// {{{ standaloneQuery()
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/**
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* execute a query as DBA
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*
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* @param string $query the SQL query
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* @param mixed $types array that contains the types of the columns in
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* the result set
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* @param boolean $is_manip if the query is a manipulation query
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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function &standaloneQuery($query, $types = null, $is_manip = false)
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{
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$user = $this->options['DBA_username']? $this->options['DBA_username'] : $this->dsn['username'];
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$pass = $this->options['DBA_password']? $this->options['DBA_password'] : $this->dsn['password'];
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$connection = $this->_doConnect($user, $pass, $this->database_name, $this->options['persistent']);
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if (MDB2::isError($connection)) {
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return $connection;
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}
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$query = $this->_modifyQuery($query, $is_manip, $this->limit, $this->offset);
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$this->offset = $this->limit = 0;
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$result = $this->_doQuery($query, $is_manip, $connection);
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if (!MDB2::isError($result)) {
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$result = $this->_affectedRows($connection, $result);
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}
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@sqlsrv_close($connection);
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return $result;
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}
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// }}}
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// {{{ _doQuery()
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/**
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* Execute a query
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* @param string $query query
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* @param boolean $is_manip if the query is a manipulation query
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|
* @param resource $connection
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* @param string $database_name
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* @return result or error object
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* @access protected
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*/
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function _doQuery($query, $is_manip = false, $connection = null, $database_name = null)
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{
|
|
$this->last_query = $query;
|
|
$result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre'));
|
|
if ($result) {
|
|
if (MDB2::isError($result)) {
|
|
return $result;
|
|
}
|
|
$query = $result;
|
|
}
|
|
if ($this->options['disable_query']) {
|
|
$result = $is_manip ? 0 : null;
|
|
return $result;
|
|
}
|
|
|
|
if (null === $connection) {
|
|
$connection = $this->getConnection();
|
|
if (MDB2::isError($connection)) {
|
|
return $connection;
|
|
}
|
|
}
|
|
if (null === $database_name) {
|
|
$database_name = $this->database_name;
|
|
}
|
|
|
|
if ($database_name && $database_name != $this->connected_database_name) {
|
|
$connection = $this->_doConnect($this->dsn['username'],$this->dsn['password'],$database_name);
|
|
if (MDB2::isError($connection)) {
|
|
$err = $this->raiseError(null, null, null,
|
|
'Could not select the database: '.$database_name, __FUNCTION__);
|
|
return $err;
|
|
}
|
|
$this->connected_database_name = $database_name;
|
|
}
|
|
|
|
$query = preg_replace('/DATE_FORMAT\((MIN\()?([\w|.]*)(\))?\\Q, \'%Y-%m-%d\')\E/i','CONVERT(varchar(10),$1$2$3,120)',$query);
|
|
$query = preg_replace('/DATE_FORMAT\(([\w|.]*)\, \'\%Y\-\%m\-\%d %H\:00\:00\'\)/i','CONVERT(varchar(13),$1,120)+\':00:00\'',$query);
|
|
$result = @sqlsrv_query($connection,$query);
|
|
if (!$result) {
|
|
$err = $this->raiseError(null, null, null,
|
|
'Could not execute statement', __FUNCTION__);
|
|
return $err;
|
|
}
|
|
$this->result = $result;
|
|
$this->debug($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 (null === $result) {
|
|
$result = $this->result;
|
|
}
|
|
return sqlsrv_rows_affected($this->result);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _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, $offset)
|
|
{
|
|
if ($limit > 0) {
|
|
$fetch = $offset + $limit;
|
|
if (!$is_manip) {
|
|
return preg_replace('/^([\s(])*SELECT( DISTINCT)?(?!\s*TOP\s*\()/i',
|
|
"\\1SELECT\\2 TOP $fetch", $query);
|
|
}
|
|
}
|
|
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)
|
|
{
|
|
if ($this->connected_server_info) {
|
|
$server_info = $this->connected_server_info;
|
|
} else {
|
|
$this->connect();
|
|
$server_info = sqlsrv_server_info($this->connection);
|
|
}
|
|
// cache server_info
|
|
$this->connected_server_info = $server_info;
|
|
$version = $server_info['SQLServerVersion'];
|
|
if (!$native) {
|
|
if (preg_match('/(\d+)\.(\d+)\.(\d+)/', $version, $tmp)) {
|
|
$version = array(
|
|
'major' => $tmp[1],
|
|
'minor' => $tmp[2],
|
|
'patch' => $tmp[3],
|
|
'extra' => null,
|
|
'native' => $version,
|
|
);
|
|
} else {
|
|
$version = array(
|
|
'major' => null,
|
|
'minor' => null,
|
|
'patch' => null,
|
|
'extra' => null,
|
|
'native' => $version,
|
|
);
|
|
}
|
|
}
|
|
return $version;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _checkSequence
|
|
|
|
/**
|
|
* Checks if there's a sequence that exists.
|
|
*
|
|
* @param string $seq_name The sequence name to verify.
|
|
* @return bool $tableExists The value if the table exists or not
|
|
* @access private
|
|
*/
|
|
function _checkSequence($seq_name)
|
|
{
|
|
$query = "SELECT * FROM $seq_name";
|
|
$tableExists =& $this->_doQuery($query, true);
|
|
if (MDB2::isError($tableExists)) {
|
|
if ($tableExists->getCode() == MDB2_ERROR_NOSUCHTABLE) {
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
if (@sqlsrv_fetch($tableExists)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ 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);
|
|
$this->pushErrorHandling(PEAR_ERROR_RETURN);
|
|
$this->expectError(MDB2_ERROR_NOSUCHTABLE);
|
|
|
|
$seq_val = $this->_checkSequence($sequence_name);
|
|
|
|
if ($seq_val) {
|
|
$query = "SET IDENTITY_INSERT $sequence_name OFF ".
|
|
"INSERT INTO $sequence_name DEFAULT VALUES";
|
|
} else {
|
|
$query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (0)";
|
|
}
|
|
$result = $this->_doQuery($query, true);
|
|
$this->popExpect();
|
|
$this->popErrorHandling();
|
|
if (MDB2::isError($result)) {
|
|
if ($ondemand && !$this->_checkSequence($sequence_name)) {
|
|
$this->loadModule('Manager', null, true);
|
|
$result = $this->manager->createSequence($seq_name);
|
|
if (MDB2::isError($result)) {
|
|
return $this->raiseError($result, null, null,
|
|
'on demand sequence '.$seq_name.' could not be created', __FUNCTION__);
|
|
} else {
|
|
/**
|
|
* Little off-by-one problem with the sequence emulation
|
|
* here being fixed, that instead of re-calling nextID
|
|
* and forcing an increment by one, we simply check if it
|
|
* exists, then we get the last inserted id if it does.
|
|
*
|
|
* In theory, $seq_name should be created otherwise there would
|
|
* have been an error thrown somewhere up there..
|
|
*
|
|
* @todo confirm
|
|
*/
|
|
if ($this->_checkSequence($seq_name)) {
|
|
return $this->lastInsertID($seq_name);
|
|
}
|
|
|
|
return $this->nextID($seq_name, false);
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
$value = $this->lastInsertID($sequence_name);
|
|
if (is_numeric($value)) {
|
|
$query = "DELETE FROM $sequence_name WHERE $seqcol_name < $value";
|
|
$result = $this->_doQuery($query, true);
|
|
if (MDB2::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)
|
|
{
|
|
return $this->queryOne("SELECT IDENT_CURRENT('$table')", 'integer');
|
|
}
|
|
|
|
// }}}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ Class MDB2_Result_mssql
|
|
|
|
/**
|
|
* MDB2 MSSQL Server result driver
|
|
*
|
|
* @package MDB2
|
|
* @category Database
|
|
* @author Frank M. Kromann <frank@kromann.info>
|
|
*/
|
|
class MDB2_Result_sqlsrv extends MDB2_Result_Common
|
|
{
|
|
// {{{ constructor: function __construct($db, $result, $limit = 0, $offset = 0)
|
|
|
|
/**
|
|
* Constructor
|
|
*/
|
|
function __construct($db, $result, $limit = 0, $offset = 0)
|
|
{
|
|
$this->db = $db;
|
|
$this->result = $result;
|
|
$this->offset = $offset;
|
|
$this->limit = max(0, $limit - 1);
|
|
$this->cursor = 0;
|
|
$this->rows = array();
|
|
$this->numFields = sqlsrv_num_fields($result);
|
|
$this->fieldMeta = sqlsrv_field_metadata($result);
|
|
$this->numRowsAffected = sqlsrv_rows_affected($result);
|
|
while ($row = sqlsrv_fetch_array($result, SQLSRV_FETCH_ASSOC)) {
|
|
if ($row !== null) {
|
|
if ($this->offset && $this->offset_count < $this->offset) {
|
|
$this->offset_count++;
|
|
continue;
|
|
}
|
|
foreach ($row as $k => $v) {
|
|
if (is_object($v) && method_exists($v, 'format')) {
|
|
//DateTime Object
|
|
$row[$k] = $v->format('Y-m-d H:i:s');
|
|
}
|
|
}
|
|
$this->rows[] = $row; //read results into memory, cursors are not supported
|
|
}
|
|
}
|
|
$this->rowcnt = count($this->rows);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _skipLimitOffset()
|
|
|
|
/**
|
|
* Skip the first row of a result set.
|
|
*
|
|
* @param resource $result
|
|
* @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
|
|
* @access protected
|
|
*/
|
|
/* function _skipLimitOffset()
|
|
{
|
|
if ($this->limit) {
|
|
if ($this->rownum >= $this->limit) {
|
|
return false;
|
|
}
|
|
}
|
|
if ($this->offset) {
|
|
while ($this->offset_count < $this->offset) {
|
|
++$this->offset_count;
|
|
if (!is_array(@sqlsrv_fetch_array($this->result))) {
|
|
$this->offset_count = $this->limit;
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return MDB2_OK;
|
|
}*/
|
|
|
|
// }}}
|
|
function array_to_obj($array, &$obj) {
|
|
foreach ($array as $key => $value) {
|
|
if (is_array($value)) {
|
|
$obj->$key = new stdClass();
|
|
array_to_obj($value, $obj->$key);
|
|
} else {
|
|
$obj->$key = $value;
|
|
}
|
|
}
|
|
return $obj;
|
|
}
|
|
// {{{ 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, $rownum = null)
|
|
{
|
|
if (!$this->result) {
|
|
return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, 'no valid statement given', __FUNCTION__);
|
|
}
|
|
if (($this->limit && $this->rownum >= $this->limit) || ($this->cursor >= $this->rowcnt || $this->rowcnt == 0)) {
|
|
return null;
|
|
}
|
|
if (null !== $rownum) {
|
|
$seek = $this->seek($rownum);
|
|
if (MDB2::isError($seek)) {
|
|
return $seek;
|
|
}
|
|
}
|
|
if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
|
|
$fetchmode = $this->db->fetchmode;
|
|
}
|
|
|
|
$row = false;
|
|
$arrNum = array();
|
|
if ($fetchmode == MDB2_FETCHMODE_ORDERED) {
|
|
foreach ($this->rows[$this->cursor] as $key=>$value) {
|
|
$arrNum[] = $value;
|
|
}
|
|
}
|
|
switch($fetchmode) {
|
|
case MDB2_FETCHMODE_ASSOC:
|
|
$row = $this->rows[$this->cursor];
|
|
break;
|
|
case MDB2_FETCHMODE_ORDERED:
|
|
$row = $arrNum;
|
|
break;
|
|
case MDB2_FETCHMODE_OBJECT:
|
|
$o = new $this->db->options['fetch_class'];
|
|
$row = $this->array_to_obj($this->rows[$this->cursor], $o);
|
|
break;
|
|
}
|
|
$this->cursor++;
|
|
|
|
/*
|
|
if ($fetchmode == MDB2_FETCHMODE_OBJECT) {
|
|
$row = sqlsrv_fetch_object($this->result,$this->db->options['fetch_class']);
|
|
} else {
|
|
switch($fetchmode) {
|
|
case MDB2_FETCHMODE_ASSOC: $fetchmode = SQLSRV_FETCH_ASSOC; break;
|
|
case MDB2_FETCHMODE_ORDERED: $fetchmode = SQLSRV_FETCH_NUMERIC; break;
|
|
case MDB2_FETCHMODE_DEFAULT:
|
|
default:
|
|
$fetchmode = SQLSRV_FETCH_BOTH;
|
|
}
|
|
$row = sqlsrv_fetch_array($this->result,$fetchmode);
|
|
}
|
|
foreach ($row as $key=>$value) {
|
|
if (is_object($value) && method_exists($value, 'format')) {//is DateTime object
|
|
$row[$key] = $value->format("Y-m-d H:i:s");
|
|
}
|
|
}*/
|
|
|
|
/*if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
|
|
$fetchmode = $this->db->fetchmode;
|
|
}*/
|
|
if ($fetchmode == MDB2_FETCHMODE_ASSOC && is_array($row) && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
|
$row = array_change_key_case($row, $this->db->options['field_case']);
|
|
}
|
|
if (!$row) {
|
|
if (false === $this->result) {
|
|
$err = $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'resultset has already been freed', __FUNCTION__);
|
|
return $err;
|
|
}
|
|
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 ( ( $fetchmode != MDB2_FETCHMODE_ASSOC
|
|
&& $fetchmode != MDB2_FETCHMODE_OBJECT)
|
|
&& !empty($this->types)
|
|
) {
|
|
$row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
|
|
} elseif (($fetchmode == MDB2_FETCHMODE_ASSOC
|
|
|| $fetchmode == MDB2_FETCHMODE_OBJECT)
|
|
&& !empty($this->types_assoc)
|
|
) {
|
|
$row = $this->db->datatype->convertResultRow($this->types_assoc, $row, $rtrim);
|
|
}
|
|
if (!empty($this->values)) {
|
|
$this->_assignBindColumns($row);
|
|
}
|
|
++$this->rownum;
|
|
return $row;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _getColumnNames()
|
|
|
|
/**
|
|
* Retrieve the names of columns returned by the DBMS in a query result.
|
|
*
|
|
* @return mixed Array variable that holds the names of columns as keys
|
|
* or an MDB2 error on failure.
|
|
* Some DBMS may not return any columns when the result set
|
|
* does not contain any rows.
|
|
* @access private
|
|
*/
|
|
function _getColumnNames()
|
|
{
|
|
if (!$this->result) {
|
|
return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, 'no valid statement given', __FUNCTION__);
|
|
}
|
|
$columns = array();
|
|
foreach ($this->fieldMeta as $n => $col) {
|
|
$columns[$col['Name']] = $n;
|
|
}
|
|
if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
|
|
$columns = array_change_key_case($columns, $this->db->options['field_case']);
|
|
}
|
|
return $columns;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ numCols()
|
|
|
|
/**
|
|
* Count the number of columns returned by the DBMS in a query result.
|
|
*
|
|
* @return mixed integer value with the number of columns, a MDB2 error
|
|
* on failure
|
|
* @access public
|
|
*/
|
|
function numCols()
|
|
{
|
|
if (!$this->result) {
|
|
return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, 'no valid statement given', __FUNCTION__);
|
|
}
|
|
$cols = $this->numFields;
|
|
if (!$cols) {
|
|
if (false === $this->result) {
|
|
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'resultset has already been freed', __FUNCTION__);
|
|
}
|
|
if (null === $this->result) {
|
|
return count($this->types);
|
|
}
|
|
return $this->db->raiseError(null, null, null,
|
|
'Could not get column count', __FUNCTION__);
|
|
}
|
|
return $cols;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ nextResult()
|
|
|
|
/**
|
|
* Move the internal result pointer to the next available result
|
|
*
|
|
* @return true on success, false if there is no more result set or an error object on failure
|
|
* @access public
|
|
*/
|
|
function nextResult()
|
|
{
|
|
if (false === $this->result) {
|
|
return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
|
|
'resultset has already been freed', __FUNCTION__);
|
|
}
|
|
if (null === $this->result) {
|
|
return false;
|
|
}
|
|
$ret = sqlsrv_next_result($this->result);
|
|
if ($ret) {
|
|
$this->cursor = 0;
|
|
$this->rows = array();
|
|
$this->numFields = sqlsrv_num_fields($this->result);
|
|
$this->fieldMeta = sqlsrv_field_metadata($this->result);
|
|
$this->numRowsAffected = sqlsrv_rows_affected($this->result);
|
|
while ($row = sqlsrv_fetch_array($this->result, SQLSRV_FETCH_ASSOC)) {
|
|
if ($row !== null) {
|
|
if ($this->offset && $this->offset_count < $this->offset) {
|
|
$this->offset_count++;
|
|
continue;
|
|
}
|
|
foreach ($row as $k => $v) {
|
|
if (is_object($v) && method_exists($v, 'format')) {//DateTime Object
|
|
//$v->setTimezone(new DateTimeZone('GMT'));//TS_ISO_8601 with a trailing 'Z' is GMT
|
|
$row[$k] = $v->format("Y-m-d H:i:s");
|
|
}
|
|
}
|
|
$this->rows[] = $row;//read results into memory, cursors are not supported
|
|
}
|
|
}
|
|
$this->rowcnt = count($this->rows);
|
|
}
|
|
return $ret;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ 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) && $this->db->connection) {
|
|
if (!@sqlsrv_free_stmt($this->result)) {
|
|
return $this->db->raiseError(null, null, null,
|
|
'Could not free result', __FUNCTION__);
|
|
}
|
|
}
|
|
$this->result = false;
|
|
return MDB2_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ function rowCount()
|
|
/**
|
|
* Returns the actual row number that was last fetched (count from 0)
|
|
* @return int
|
|
*
|
|
* @access public
|
|
*/
|
|
function rowCount()
|
|
{
|
|
return $this->cursor;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ function numRows()
|
|
|
|
/**
|
|
* Returns the number of rows in a result object
|
|
*
|
|
* @return mixed MDB2 Error Object or the number of rows
|
|
*
|
|
* @access public
|
|
*/
|
|
function numRows()
|
|
{
|
|
return $this->rowcnt;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ function seek($rownum = 0)
|
|
|
|
/**
|
|
* Seek to a specific row in a result set
|
|
*
|
|
* @param int 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)
|
|
{
|
|
$this->cursor = min($rownum, $this->rowcnt);
|
|
return MDB2_OK;
|
|
}
|
|
|
|
// }}}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ class MDB2_BufferedResult_mssql
|
|
|
|
/**
|
|
* MDB2 MSSQL Server buffered result driver
|
|
*
|
|
* @package MDB2
|
|
* @category Database
|
|
* @author Frank M. Kromann <frank@kromann.info>
|
|
*/
|
|
class MDB2_BufferedResult_sqlsrv extends MDB2_Result_sqlsrv
|
|
{
|
|
// {{{ 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 = $this->numRows();
|
|
if (MDB2::isError($numrows)) {
|
|
return $numrows;
|
|
}
|
|
return $this->rownum < ($numrows - 1);
|
|
}
|
|
|
|
// }}}
|
|
|
|
}
|
|
|
|
// }}}
|
|
// {{{ MDB2_Statement_mssql
|
|
|
|
/**
|
|
* MDB2 MSSQL Server statement driver
|
|
*
|
|
* @package MDB2
|
|
* @category Database
|
|
* @author Frank M. Kromann <frank@kromann.info>
|
|
*/
|
|
class MDB2_Statement_sqlsrv extends MDB2_Statement_Common
|
|
{
|
|
|
|
}
|
|
|
|
// }}}
|
|
|
|
?>
|