Added view to upload documents to poll answers

app/controllers/admin/poll/questions/answers_controller.rb

@@ -1,5 +1,6 @@
 class Admin::Poll::Questions::AnswersController < Admin::Poll::BaseController
   before_action :load_question
+  before_action :load_answer, only: [:update, :documents]
 
   load_and_authorize_resource :question, class: "::Poll::Question"
 
@@ -18,10 +19,28 @@ class Admin::Poll::Questions::AnswersController < Admin::Poll::BaseController
     end
   end
 
+  def update
+    if @answer.update(answer_params)
+      redirect_to admin_question_path(@question), notice: t("flash.actions.save_changes.notice")
+    else
+      redirect_to :back
+    end
+  end
+
+  def documents
+    @documents = @answer.documents
+
+    render 'admin/poll/questions/answers/documents'
+  end
+
   private
 
     def answer_params
-      params.require(:poll_question_answer).permit(:title, :description, :question_id)
+      params.require(:poll_question_answer).permit(:title, :description, :question_id, documents_attributes: [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy])
+    end
+
+    def load_answer
+      @answer = ::Poll::Question::Answer.find(params[:id] || params[:answer_id])
     end
 
     def load_question