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<?php
/**
* CActiveRecordBehavior class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/

/**
* CActiveRecordBehavior is the base class for behaviors that can be attached to {@link CActiveRecord}.
* Compared with {@link CModelBehavior}, CActiveRecordBehavior attaches to more events
* that are only defined by {@link CActiveRecord}.
*
* @property CActiveRecord $owner The owner AR that this behavior is attached to.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @package system.db.ar
*/
class CActiveRecordBehavior extends CModelBehavior
{
/**
* Declares events and the corresponding event handler methods.
* If you override this method, make sure you merge the parent result to the return value.
* @return array events (array keys) and the corresponding event handler methods (array values).
* @see CBehavior::events
*/
public function events()
{
return array_merge(parent::events(), array(
'onBeforeSave'=>'beforeSave',
'onAfterSave'=>'afterSave',
'onBeforeDelete'=>'beforeDelete',
'onAfterDelete'=>'afterDelete',
'onBeforeFind'=>'beforeFind',
'onAfterFind'=>'afterFind',
));
}

/**
* Responds to {@link CActiveRecord::onBeforeSave} event.
* Override this method and make it public if you want to handle the corresponding
* event of the {@link CBehavior::owner owner}.
* You may set {@link CModelEvent::isValid} to be false to quit the saving process.
* @param CModelEvent $event event parameter
*/
protected function beforeSave($event)
{
}

/**
* Responds to {@link CActiveRecord::onAfterSave} event.
* Override this method and make it public if you want to handle the corresponding event
* of the {@link CBehavior::owner owner}.
* @param CModelEvent $event event parameter
*/
protected function afterSave($event)
{
}

/**
* Responds to {@link CActiveRecord::onBeforeDelete} event.
* Override this method and make it public if you want to handle the corresponding event
* of the {@link CBehavior::owner owner}.
* You may set {@link CModelEvent::isValid} to be false to quit the deletion process.
* @param CEvent $event event parameter
*/
protected function beforeDelete($event)
{
}

/**
* Responds to {@link CActiveRecord::onAfterDelete} event.
* Override this method and make it public if you want to handle the corresponding event
* of the {@link CBehavior::owner owner}.
* @param CEvent $event event parameter
*/
protected function afterDelete($event)
{
}

/**
* Responds to {@link CActiveRecord::onBeforeFind} event.
* Override this method and make it public if you want to handle the corresponding event
* of the {@link CBehavior::owner owner}.
* @param CEvent $event event parameter
*/
protected function beforeFind($event)
{
}

/**
* Responds to {@link CActiveRecord::onAfterFind} event.
* Override this method and make it public if you want to handle the corresponding event
* of the {@link CBehavior::owner owner}.
* @param CEvent $event event parameter
*/
protected function afterFind($event)
{
}
}
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