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<?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);
}
}