public function onHomeworkFinished(ServiceEvent $event)
{
$homework = $event->getSubject();
if ($event->hasArgument('homeworkResult')) {
$homeworkResult = $event->getArgument('homeworkResult');
$targetObject = array('id' => $homework['id'], 'type' => 'homework', 'passedStatus' => $homeworkResult['passedStatus'], 'userId' => $homeworkResult['userId']);
$this->_finishTask('studyplan', $targetObject);
}
}
