fix bug

app/controllers/poll_votes_controller.rb

@@ -33,8 +33,7 @@ class PollVotesController < ApplicationController
             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
               current_user_answer.destroy
-              user_votes = PollVote.new(vote_answer_params)
-              user_votes.save!
+              PollVote.create(vote_answer_params)
             else
 
               if question_answer_text.present?
@@ -43,8 +42,7 @@ class PollVotesController < ApplicationController
               end
             end
           else
-            user_votes = PollVote.new(vote_answer_params)
-            user_votes.save!
+            PollVote.create(vote_answer_params)
           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
@@ -102,10 +100,10 @@ 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
+        new_user_votes = question_votes.where(user_id: current_user.id)
+        if new_user_votes.present?
+          vote_answer_id = new_user_votes.pluck(:poll_answer_id).reject(&:blank?).size
+          vote_text_count = new_user_votes.pluck(:vote_text).reject(&:blank?).size
           if vote_text_count > 0 || vote_answer_id > 0
             @current_question_status = 1
           end