protected function afterDelete()
 {
     parent::afterDelete();
     /**
      * Удаляем варианты ответов
      */
     $aAnswerItems = $this->Poll_GetAnswerItemsByPollId($this->getId());
     foreach ($aAnswerItems as $oAnswer) {
         $oAnswer->Delete();
     }
     /**
      * Удаляем голосования
      */
     $aVoteItems = $this->Poll_GetVoteItemsByPollId($this->getId());
     foreach ($aVoteItems as $oVote) {
         $oVote->Delete();
     }
 }