fix bug

app/controllers/poll_votes_controller.rb

@@ -30,26 +30,21 @@ class PollVotesController < ApplicationController
         #begin
         if question_type == 1
           if user_votes.present?  #用户曾经回答过的，答案选择不一样，否则新建
-            logger.info("########___________user_votes.present1111____________________#######")
             current_user_answer = user_votes.first
             if current_user_answer&.poll_answer_id != question_answer_id   #如果说更换了答案，则以前的答案删除，并新建记录
-              logger.info("########___________user_votes.present22222____________________#######")
-
               current_user_answer.destroy
-              PollVote.create(vote_answer_params)
+              user_votes = PollVote.new(vote_answer_params)
+              user_votes.save!
             else
-              logger.info("########___________user_votes.present33333____________________#######")
 
               if question_answer_text.present?
-                logger.info("########___________user_votes.present4444444____________________#######")
 
                 current_user_answer.update_attribute("vote_text", question_answer_text)
               end
             end
           else
-            logger.info("########___________user_votes.present555555____________________#######")
-
-            PollVote.create(vote_answer_params)
+            user_votes = PollVote.new(vote_answer_params)
+            user_votes.save!
           end
         elsif question_type == 2   #多选题的话，答案应该是1个以上
           question_answer_ids = params[:poll_answer_id] ? params[:poll_answer_id] : [] #该答案的id
@@ -107,6 +102,7 @@ class PollVotesController < ApplicationController
         @current_question_necessary = @poll_question.is_necessary
         #问答记录存在，且有值，才会有返回值。
         @current_question_status = 0
+
         if user_votes.present?
           vote_answer_id = user_votes.pluck(:poll_answer_id).reject(&:blank?).size
           vote_text_count = user_votes.pluck(:vote_text).reject(&:blank?).size