class.ilDBWrapperFactory.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
require_once("./Services/Database/exceptions/exception.ilDatabaseException.php");
require_once('./Services/Database/classes/class.ilDBConstants.php');
require_once("./Services/Database/interfaces/interface.ilDBInterface.php");
require_once('./Services/Database/interfaces/interface.ilDBManager.php');
require_once('./Services/Database/interfaces/interface.ilDBReverse.php');

class ilDBWrapperFactory
{

    public static function getWrapper($a_type, $a_inactive_mysqli = null)
    {
        global $ilClientIniFile;
        if ($a_type == "" && is_object($ilClientIniFile)) {
            $a_type = $ilClientIniFile->readVariable("db", "type");
        }
        if ($a_type == "") {
            $a_type = ilDBConstants::TYPE_PDO_MYSQL_MYISAM;
        }

        // For legacy code
        if (!defined('DB_FETCHMODE_ASSOC')) {
            define("DB_FETCHMODE_ASSOC", ilDBConstants::FETCHMODE_ASSOC);
        }
        if (!defined('DB_FETCHMODE_OBJECT')) {
            define("DB_FETCHMODE_OBJECT", ilDBConstants::FETCHMODE_OBJECT);
        }

        switch ($a_type) {
            case ilDBConstants::TYPE_POSTGRES:
            case ilDBConstants::TYPE_PDO_POSTGRE:
                require_once('./Services/Database/classes/PDO/class.ilDBPdoPostgreSQL.php');
                $ilDB = new ilDBPdoPostgreSQL();
                break;
            case ilDBConstants::TYPE_ORACLE:
                include_once("./Services/Database/classes/MDB2/class.ilDBOracle.php");
                $ilDB = new ilDBOracle();
                break;
            case ilDBConstants::TYPE_PDO_MYSQL_INNODB:
            case ilDBConstants::TYPE_INNODB:
                require_once('./Services/Database/classes/PDO/class.ilDBPdoMySQLInnoDB.php');
                $ilDB = new ilDBPdoMySQLInnoDB();
                break;
            case ilDBConstants::TYPE_PDO_MYSQL_MYISAM:
            case ilDBConstants::TYPE_MYSQL:
                require_once('./Services/Database/classes/PDO/class.ilDBPdoMySQLMyISAM.php');
                $ilDB = new ilDBPdoMySQLMyISAM();
                break;
            case ilDBConstants::TYPE_GALERA:
                require_once('./Services/Database/classes/PDO/class.ilDBPdoMySQLGalera.php');
                $ilDB = new ilDBPdoMySQLGalera();
                break;
            case 'postgres-legacy':
                require_once('./Services/Database/classes/MDB2/class.ilDBPostgreSQL.php');
                $ilDB = new ilDBPostgreSQL();
                break;
            case 'mysql-legacy':
                require_once('./Services/Database/classes/MDB2/class.ilDBMySQL.php');
                $ilDB = new ilDBMySQL();
                break;
            case 'innodb-legacy':
                require_once('./Services/Database/classes/MDB2/class.ilDBInnoDB.php');
                $ilDB = new ilDBInnoDB();
                break;
            default:
                throw new ilDatabaseException("No viable database-type given: " . var_export($a_type, true));
        }

        return $ilDB;
    }
}