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MDL-59581 database: remove mssql specific code from lib/dml

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This commit is contained in:
Jake Dallimore 2017-09-21 14:09:44 +08:00 committed by Eloy Lafuente (stronk7)
parent 2bd2660751
commit 48c3e99599
4 changed files with 22 additions and 1615 deletions
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1468
lib/dml/mssql_native_moodle_database.php
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94
lib/dml/mssql_native_moodle_recordset.php
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@ -1,94 +0,0 @@
<?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 recordset.
*
* @package core_dml
* @copyright 2009 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__.'/moodle_recordset.php');
class mssql_native_moodle_recordset extends moodle_recordset {
protected $rsrc;
protected $current;
public function __construct($rsrc) {
$this->rsrc = $rsrc;
$this->current = $this->fetch_next();
}
public function __destruct() {
$this->close();
}
private function fetch_next() {
if (!$this->rsrc) {
return false;
}
if (!$row = mssql_fetch_assoc($this->rsrc)) {
mssql_free_result($this->rsrc);
$this->rsrc = null;
return false;
}
$row = array_change_key_case($row, CASE_LOWER);
// Moodle expects everything from DB as strings.
foreach ($row as $k=>$v) {
if (is_null($v)) {
continue;
}
if (!is_string($v)) {
$row[$k] = (string)$v;
}
}
return $row;
}
public function current() {
return (object)$this->current;
}
public function key() {
// return first column value as key
if (!$this->current) {
return false;
}
$key = reset($this->current);
return $key;
}
public function next() {
$this->current = $this->fetch_next();
}
public function valid() {
return !empty($this->current);
}
public function close() {
if ($this->rsrc) {
mssql_free_result($this->rsrc);
$this->rsrc = null;
}
$this->current = null;
}
}

51
lib/dml/mssql_native_moodle_temptables.php
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@ -1,51 +0,0 @@
<?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 differently than normal tables. Also used to be able to retrieve
* temp table names included in the get_tables() method of the DB.
*
* @package core_dml
* @copyright 2009 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__.'/moodle_temptables.php');
class mssql_native_moodle_temptables extends moodle_temptables {
/**
* Add one temptable to the store.
*
* Overriden because MSSQL requires to add # for local (session) temporary
* tables before the prefix.
*
* Given one moodle temptable name (without prefix), add it to the store, with the
* key being the original moodle name and the value being the real db temptable name
* already prefixed
*
* Override and use this *only* if the database requires modification in the table name.
*
* @param string $tablename name without prefix of the table created as temptable
*/
public function add_temptable($tablename) {
// TODO: throw exception if exists: if ($this->is_temptable...
$this->temptables[$tablename] = '#' . $this->prefix . $tablename;
}
}

24
lib/dml/sqlsrv_native_moodle_temptables.php
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@ -26,7 +26,7 @@
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__.'/mssql_native_moodle_temptables.php');
require_once(__DIR__.'/moodle_temptables.php');
/**
* This class is not specific to the SQL Server Native Driver but rather
@ -36,4 +36,24 @@ require_once(__DIR__.'/mssql_native_moodle_temptables.php');
* @copyright 2009 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v2 or later
*/
class sqlsrv_native_moodle_temptables extends mssql_native_moodle_temptables {}
class sqlsrv_native_moodle_temptables extends moodle_temptables {
/**
* Add one temptable to the store.
*
* Overriden because SQLSRV requires to add # for local (session) temporary
* tables before the prefix.
*
* Given one moodle temptable name (without prefix), add it to the store, with the
* key being the original moodle name and the value being the real db temptable name
* already prefixed
*
* Override and use this *only* if the database requires modification in the table name.
*
* @param string $tablename name without prefix of the table created as temptable
*/
public function add_temptable($tablename) {
// TODO: throw exception if exists: if ($this->is_temptable...
$this->temptables[$tablename] = '#' . $this->prefix . $tablename;
}
}