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61 lines
1.6 KiB
61 lines
1.6 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\db\mssql; |
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/** |
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* This is an extension of the default PDO class of MSSQL and DBLIB drivers. |
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* It provides workarounds for improperly implemented functionalities of the MSSQL and DBLIB drivers. |
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* |
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* @author Timur Ruziev <resurtm@gmail.com> |
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* @since 2.0 |
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*/ |
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class PDO extends \PDO |
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{ |
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/** |
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* Returns value of the last inserted ID. |
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* @param string|null $sequence the sequence name. Defaults to null. |
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* @return integer last inserted ID value. |
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*/ |
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public function lastInsertId($sequence = null) |
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{ |
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return $this->query('SELECT CAST(COALESCE(SCOPE_IDENTITY(), @@IDENTITY) AS bigint)')->fetchColumn(); |
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} |
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/** |
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* Starts a transaction. It is necessary to override PDO's method as MSSQL PDO driver does not |
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* natively support transactions. |
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* @return boolean the result of a transaction start. |
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*/ |
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public function beginTransaction() |
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{ |
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$this->exec('BEGIN TRANSACTION'); |
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return true; |
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} |
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/** |
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* Commits a transaction. It is necessary to override PDO's method as MSSQL PDO driver does not |
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* natively support transactions. |
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* @return boolean the result of a transaction commit. |
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*/ |
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public function commit() |
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{ |
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$this->exec('COMMIT TRANSACTION'); |
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return true; |
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} |
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/** |
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* Rollbacks a transaction. It is necessary to override PDO's method as MSSQL PDO driver does not |
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* natively support transactions. |
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* @return boolean the result of a transaction rollback. |
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*/ |
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public function rollBack() |
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{ |
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$this->exec('ROLLBACK TRANSACTION'); |
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return true; |
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} |
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}
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