再谈Yii Framework框架中的事件event原理与应用

public function __set($name,$value)
{
  $setter='set'.$name;
  if(method_exists($this,$setter))
    return $this->$setter($value);
  else if(strncasecmp($name,'on',2)===0 && method_exists($this,$name))
  {
    // duplicating getEventHandlers() here for performance
    $name=strtolower($name);
    if(!isset($this->_e[$name]))
      $this->_e[$name]=new CList;
    return $this->_e[$name]->add($value);
  }
  else if(is_array($this->_m))
  {
    foreach($this->_m as $object)
    {
      if($object->getEnabled() && (property_exists($object,$name) || $object->canSetProperty($name)))
        return $object->$name=$value;
    }
  }
  if(method_exists($this,'get'.$name))
    throw new CException(Yii::t('yii','Property "{class}.{property}" is read only.',
      array('{class}'=>get_class($this), '{property}'=>$name)));
  else
    throw new CException(Yii::t('yii','Property "{class}.{property}" is not defined.',
      array('{class}'=>get_class($this), '{property}'=>$name)));
}

/***************************************************
在我们想要的内容的前后出现了这些代码
只是为了说明，我们添加的内容是要放在
这个配置数据的一维里面。
'import'=>array(
  'application.models.*',
  'application.components.*',
  'application.helpers.*',
),
'defaultController'=>'post',
***************************************************/

//其它代码
'import'=>array(
  'application.models.*',
  'application.components.*',
  'application.helpers.*',
),

/************** 这才是我们想要添加的代码 **************/
'onBeginRequest' => array('MyEventHandler', 'MyEventHandlerMethod'),

'defaultController'=>'post',
//其它代码

//参考自framework/logging/CLogRouter.php的init()方法
Yii::app()->attachEventHandler('onEndRequest',array($this,'processLogs'));

$myComponent->onClick = $callback;