<?php /** * @link http://www.yiiframework.com/ * @copyright Copyright (c) 2008 Yii Software LLC * @license http://www.yiiframework.com/license/ */ namespace yii\db\mssql; /** * This is an extension of the default PDO class of SQLSRV driver. * It provides workarounds for improperly implemented functionalities of the SQLSRV driver. * * @author Timur Ruziev <resurtm@gmail.com> * @since 2.0 */ class SqlsrvPDO extends \PDO { /** * Returns value of the last inserted ID. * * SQLSRV driver implements [[PDO::lastInsertId()]] method but with a single peculiarity: * when `$sequence` value is a null or an empty string it returns an empty string. * But when parameter is not specified it works as expected and returns actual * last inserted ID (like the other PDO drivers). * @param string|null $sequence the sequence name. Defaults to null. * @return integer last inserted ID value. */ public function lastInsertId($sequence = null) { return !$sequence ? parent::lastInsertId() : parent::lastInsertId($sequence); } }