Improved most_voted method

app/controllers/polls/questions_controller.rb

@@ -13,6 +13,10 @@ class Polls::QuestionsController < ApplicationController
     answer.touch if answer.persisted?
     answer.save!
     answer.record_voter_participation(token)
+    @question.question_answers
+              .where(question_id: @question, title: answer.answer)
+              .first
+              .set_most_voted
 
     @answers_by_question_id = { @question.id => params[:answer] }
   end

app/models/poll/question/answer.rb

@@ -13,7 +13,6 @@ class Poll::Question::Answer < ActiveRecord::Base
   validates :given_order, presence: true, uniqueness: { scope: :question_id }
 
   before_validation :set_order, on: :create
-  before_save :most_voted
 
   def description
     super.try :html_safe
@@ -37,15 +36,19 @@ class Poll::Question::Answer < ActiveRecord::Base
     Poll::Answer.where(question_id: question, answer: title).count
   end
 
-  def most_voted
-    answers = question.question_answers
-                  .map { |a| Poll::Answer.where(question_id: a.question, answer: a.title).count }
-    most_voted = !answers.any?{ |a| a > total_votes }
-
-    self.update_attributes(most_voted: most_voted)
+  def most_voted?
+    self.most_voted
   end
 
   def total_votes_percentage
     ((total_votes*100) / question.answers_total_votes).round(2) rescue 0
   end
+
+  def set_most_voted
+    answers = question.question_answers
+                  .map { |a| Poll::Answer.where(question_id: a.question, answer: a.title).count }
+    is_most_voted = !answers.any?{ |a| a > self.total_votes }
+
+    self.update(most_voted: is_most_voted)
+  end
 end

app/views/polls/results.html.erb

@@ -17,19 +17,19 @@
 
     <div class="small-12 medium-9 column">
       <%- @poll.questions.each do |question| %>
-        <table>
+        <table id="question_<%= question.id %>_results_table">
           <h3 anchor="<%= question.title.parameterize %>"><%= question.title %></h3>
           <thead>
             <tr>
               <%- question.question_answers.each do |answer| %>
-                <th scope="col" <%= answer.is_winner? ? "class=win" : "" %>><%= answer.title %></th>
+                <th scope="col" <%= answer.most_voted? ? "class=win" : "" %>><%= answer.title %></th>
               <% end %>
             </tr>
           </thead>
           <tbody>
             <tr>
               <%- question.question_answers.each do |answer| %>
-                <td <%= answer.is_winner? ? "class=win" : "" %>>
+                <td id="answer_<%= answer.id %>_result" <%= answer.most_voted? ? "class=win" : "" %>>
                   <%= answer.total_votes %>
                   (<%= answer.total_votes_percentage %>%)
                 </td>