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<?php
/**
* CModelBehavior 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/
*/

/**
* CModelBehavior is a base class for behaviors that are attached to a model component.
* The model should extend from {@link CModel} or its child classes.
*
* @property CModel $owner The owner model that this behavior is attached to.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id$
* @package system.base
*/
class CModelBehavior extends CBehavior
{
/**
* Declares events and the corresponding event handler methods.
* The default implementation returns 'onAfterConstruct', 'onBeforeValidate' and 'onAfterValidate' events and handlers.
* 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(
'onAfterConstruct'=>'afterConstruct',
'onBeforeValidate'=>'beforeValidate',
'onAfterValidate'=>'afterValidate',
);
}

/**
* Responds to {@link CModel::onAfterConstruct} event.
* Overrides this method if you want to handle the corresponding event of the {@link CBehavior::owner owner}.
* @param CEvent $event event parameter
*/
public function afterConstruct($event)
{
}

/**
* Responds to {@link CModel::onBeforeValidate} event.
* Overrides this method if you want to handle the corresponding event of the {@link owner}.
* You may set {@link CModelEvent::isValid} to be false to quit the validation process.
* @param CModelEvent $event event parameter
*/
public function beforeValidate($event)
{
}

/**
* Responds to {@link CModel::onAfterValidate} event.
* Overrides this method if you want to handle the corresponding event of the {@link owner}.
* @param CEvent $event event parameter
*/
public function afterValidate($event)
{
}
}
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