问卷的简答题回答bug修复

app/controllers/poll_votes_controller.rb

@@ -91,15 +91,17 @@ class PollVotesController < ApplicationController
           end
         else   #主观题的输入
           # current_vote_text = user_votes.find_vote_text
-          if user_votes.present?
-            user_votes.first.update_attribute("vote_text", question_answer_text)
-            # if question_answer_text.present?
-            #   user_votes.first.update_attribute("vote_text", question_answer_text)
-            # else
-            #   user_votes.destroy_all
-            # end
-          else
-            PollVote.create(vote_answer_params)
+          if question_answer_text.present?
+            if user_votes.present?
+              user_votes.first.update_attribute("vote_text", question_answer_text)
+              # if question_answer_text.present?
+              #   user_votes.first.update_attribute("vote_text", question_answer_text)
+              # else
+              #   user_votes.destroy_all
+              # end
+            else
+              PollVote.create(vote_answer_params)
+            end
           end
         end
         @current_question_number = @poll_question.question_number