Extract by_answer variable to component method

app/components/admin/poll/results/question_component.html.erb

@@ -9,7 +9,6 @@
     </thead>
     <tbody>
       <% question.question_options.each_with_index do |option, i| %>
-        <% by_answer = by_question[question.id].present? ? by_question[question.id].group_by(&:answer) : {} %>
         <tr id="question_<%= question.id %>_<%= i %>_result">
           <td><%= option.title %></td>
           <td class="text-center"><%= by_answer[option.title].present? ? by_answer[option.title].sum(&:amount) : 0 %></td>

app/components/admin/poll/results/question_component.rb

@@ -6,7 +6,13 @@ class Admin::Poll::Results::QuestionComponent < ApplicationComponent
     @partial_results = partial_results
   end
 
-  def by_question
-    @by_question ||= partial_results.group_by(&:question_id)
+  def by_answer
+    @by_answer ||= by_question[question.id].present? ? by_question[question.id].group_by(&:answer) : {}
   end
+
+  private
+
+    def by_question
+      @by_question ||= partial_results.group_by(&:question_id)
+    end
 end