moodle/lib/dml/mssql_native_moodle_temptables.php

48 lines
1.8 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* MSSQL specific temptables store. Needed because temporary tables
* are named diferently than normal tables. Also used to be able to retrieve
* temp table names included in the get_tables() method od the DB.
*
* @package moodlecore
* @subpackage DML
* @copyright 2009 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once($CFG->libdir.'/dml/moodle_temptables.php');
class mssql_native_moodle_temptables extends moodle_temptables {
/**
* Override the method to return the correct real name (prefix = '#') of
* temporary mssql databases. Widely used in the corresponding mssql sql
* generator and database driver
*
* @param string $tablename name without prefix which corresponding temp tablename nees to calculate
*/
public function get_correct_name($tablename) {
// TODO: throw exception if not exists
if (!empty($this->temptables[$tablename])) {
return '#' . $this->prefix . $tablename;
} else {
return $this->prefix . $tablename;
}
}
}