You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
2.6 KiB
109 lines
2.6 KiB
13 years ago
|
<?php
|
||
|
|
/**
|
||
|
|
* CDbTransaction class file
|
||
|
|
*
|
||
|
|
* @author Qiang Xue <qiang.xue@gmail.com>
|
||
|
|
* @link http://www.yiiframework.com/
|
||
|
|
* @copyright Copyright © 2008-2011 Yii Software LLC
|
||
|
|
* @license http://www.yiiframework.com/license/
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* CDbTransaction represents a DB transaction.
|
||
|
|
*
|
||
|
|
* It is usually created by calling {@link CDbConnection::beginTransaction}.
|
||
|
|
*
|
||
|
|
* The following code is a common scenario of using transactions:
|
||
|
|
* <pre>
|
||
|
|
* $transaction=$connection->beginTransaction();
|
||
|
|
* try
|
||
|
|
* {
|
||
|
|
* $connection->createCommand($sql1)->execute();
|
||
|
|
* $connection->createCommand($sql2)->execute();
|
||
|
|
* //.... other SQL executions
|
||
|
|
* $transaction->commit();
|
||
|
|
* }
|
||
|
|
* catch(Exception $e)
|
||
|
|
* {
|
||
|
|
* $transaction->rollBack();
|
||
|
|
* }
|
||
|
|
* </pre>
|
||
|
|
*
|
||
|
|
* @author Qiang Xue <qiang.xue@gmail.com>
|
||
|
|
* @version $Id: CDbTransaction.php 3069 2011-03-14 00:28:38Z qiang.xue $
|
||
|
|
* @package system.db
|
||
|
|
* @since 1.0
|
||
|
|
*/
|
||
|
|
class CDbTransaction extends CComponent
|
||
|
|
{
|
||
|
|
private $_connection = null;
|
||
|
|
private $_active;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Constructor.
|
||
|
|
* @param CDbConnection $connection the connection associated with this transaction
|
||
|
|
* @see CDbConnection::beginTransaction
|
||
|
|
*/
|
||
|
|
public function __construct(CDbConnection $connection)
|
||
|
|
{
|
||
|
|
$this->_connection = $connection;
|
||
|
|
$this->_active = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Commits a transaction.
|
||
|
|
* @throws CException if the transaction or the DB connection is not active.
|
||
|
|
*/
|
||
|
|
public function commit()
|
||
|
|
{
|
||
|
|
if ($this->_active && $this->_connection->getActive())
|
||
|
|
{
|
||
|
|
Yii::trace('Committing transaction', 'system.db.CDbTransaction');
|
||
|
|
$this->_connection->getPdoInstance()->commit();
|
||
|
|
$this->_active = false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
throw new CDbException(Yii::t('yii', 'CDbTransaction is inactive and cannot perform commit or roll back operations.'));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Rolls back a transaction.
|
||
|
|
* @throws CException if the transaction or the DB connection is not active.
|
||
|
|
*/
|
||
|
|
public function rollback()
|
||
|
|
{
|
||
|
|
if ($this->_active && $this->_connection->getActive())
|
||
|
|
{
|
||
|
|
Yii::trace('Rolling back transaction', 'system.db.CDbTransaction');
|
||
|
|
$this->_connection->getPdoInstance()->rollBack();
|
||
|
|
$this->_active = false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
throw new CDbException(Yii::t('yii', 'CDbTransaction is inactive and cannot perform commit or roll back operations.'));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return CDbConnection the DB connection for this transaction
|
||
|
|
*/
|
||
|
|
public function getConnection()
|
||
|
|
{
|
||
|
|
return $this->_connection;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return boolean whether this transaction is active
|
||
|
|
*/
|
||
|
|
public function getActive()
|
||
|
|
{
|
||
|
|
return $this->_active;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param boolean $value whether this transaction is active
|
||
|
|
*/
|
||
|
|
protected function setActive($value)
|
||
|
|
{
|
||
|
|
$this->_active = $value;
|
||
|
|
}
|
||
|
|
}
|