public function __construct(Doctrine_Event $event, $when, $action, $parameters = array())
 {
     $invoker = $event->getInvoker();
     $parameters['record'] = $invoker;
     parent::__construct($invoker, sprintf('op_doctrine.%s_%s_%s', $when, $action, get_class($invoker)), $parameters);
     $this->doctrineEvent = $event;
 }