CDbTransaction

所有包 | 属性 | 方法

包	system.db
继承	class CDbTransaction » CComponent
可用自	1.0
源码	framework/db/CDbTransaction.php

CDbTransaction represents a DB transaction.

It is usually created by calling CDbConnection::beginTransaction.

The following code is a common scenario of using transactions:

$transaction=$connection->beginTransaction();
try
{
   $connection->createCommand($sql1)->execute();
   $connection->createCommand($sql2)->execute();
   //.... other SQL executions
   $transaction->commit();
}
catch(Exception $e)
{
   $transaction->rollback();
}

公共属性

隐藏继承的属性

属性	类型	描述	被定义在
active	boolean	whether this transaction is active	CDbTransaction
connection	CDbConnection	the DB connection for this transaction	CDbTransaction

公共方法

隐藏继承的方法

方法	描述	被定义在
__call()	Calls the named method which is not a class method.	CComponent
__construct()	Constructor.	CDbTransaction
__get()	Returns a property value, an event handler list or a behavior based on its name.	CComponent
__isset()	Checks if a property value is null.	CComponent
__set()	Sets value of a component property.	CComponent
__unset()	Sets a component property to be null.	CComponent
asa()	Returns the named behavior object.	CComponent
attachBehavior()	Attaches a behavior to this component.	CComponent
attachBehaviors()	Attaches a list of behaviors to the component.	CComponent
attachEventHandler()	Attaches an event handler to an event.	CComponent
canGetProperty()	Determines whether a property can be read.	CComponent
canSetProperty()	Determines whether a property can be set.	CComponent
commit()	Commits a transaction.	CDbTransaction
detachBehavior()	Detaches a behavior from the component.	CComponent
detachBehaviors()	Detaches all behaviors from the component.	CComponent
detachEventHandler()	Detaches an existing event handler.	CComponent
disableBehavior()	Disables an attached behavior.	CComponent
disableBehaviors()	Disables all behaviors attached to this component.	CComponent
enableBehavior()	Enables an attached behavior.	CComponent
enableBehaviors()	Enables all behaviors attached to this component.	CComponent
evaluateExpression()	Evaluates a PHP expression or callback under the context of this component.	CComponent
getActive()	Returns whether this transaction is active	CDbTransaction
getConnection()	Returns the DB connection for this transaction	CDbTransaction
getEventHandlers()	Returns the list of attached event handlers for an event.	CComponent
hasEvent()	Determines whether an event is defined.	CComponent
hasEventHandler()	Checks whether the named event has attached handlers.	CComponent
hasProperty()	Determines whether a property is defined.	CComponent
raiseEvent()	Raises an event.	CComponent
rollback()	Rolls back a transaction.	CDbTransaction

受保护的方法

隐藏继承的方法

方法	描述	被定义在
setActive()	Sets whether this transaction is active	CDbTransaction

属性详情

active 属性

public boolean getActive()
protected void setActive(boolean $value)

whether this transaction is active

connection 属性只读

public CDbConnection getConnection()

the DB connection for this transaction

方法详情

__construct() 方法

public void __construct(CDbConnection $connection)
$connection	CDbConnection	the connection associated with this transaction

源码： framework/db/CDbTransaction.php#49 (显示)


public function __construct(CDbConnection $connection)
{
    $this->_connection=$connection;
    $this->_active=true;
}

Constructor.

参见

CDbConnection::beginTransaction

commit() 方法

public void commit()

源码： framework/db/CDbTransaction.php#59 (显示)


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.'));
}

Commits a transaction.

getActive() 方法

public boolean getActive()
{return}	boolean	whether this transaction is active

源码： framework/db/CDbTransaction.php#98 (显示)


public function getActive()
{
    return $this->_active;
}

getConnection() 方法

public CDbConnection getConnection()
{return}	CDbConnection	the DB connection for this transaction

源码： framework/db/CDbTransaction.php#90 (显示)


public function getConnection()
{
    return $this->_connection;
}

rollback() 方法

public void rollback()

源码： framework/db/CDbTransaction.php#75 (显示)


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.'));
}

Rolls back a transaction.

setActive() 方法

protected void setActive(boolean $value)
$value	boolean	whether this transaction is active

源码： framework/db/CDbTransaction.php#106 (显示)


protected function setActive($value)
{
    $this->_active=$value;
}