public function vote($voteId, $answerId, $participantId)
 {
     if (null === $this->findParticipantAnswerForVote($participantId, $voteId)) {
         $_row = $this->createRow();
         $_row->vote_id = $voteId;
         $_row->answer_id = $answerId;
         $_row->participant_id = $participantId;
         $_row->insert();
         //Now Update the vote count for the answer....
         $_answersTable = new AnswersTable();
         $_answer = $_answersTable->findById($answerId);
         $_answer->vote_count += 1;
         $_answer->save();
     }
 }