adds Poll::Answer model for web users

PartialResults is kept for booth results

app/controllers/polls/questions_controller.rb

@@ -1,7 +1,7 @@
 class Polls::QuestionsController < ApplicationController
 
   load_and_authorize_resource :poll
-  load_and_authorize_resource :question, class: 'Poll::Question'#, through: :poll
+  load_and_authorize_resource :question, class: 'Poll::Question'
 
   has_orders %w{most_voted newest oldest}, only: :show
 
@@ -10,17 +10,15 @@ class Polls::QuestionsController < ApplicationController
     @comment_tree = CommentTree.new(@commentable, params[:page], @current_order)
     set_comment_flags(@comment_tree.comments)
 
-    question_answer = @question.partial_results.where(author_id: current_user.try(:id)).first
+    question_answer = @question.answers.where(author_id: current_user.try(:id)).first
     @answers_by_question_id = {@question.id => question_answer.try(:answer)}
   end
 
   def answer
-    partial_result = @question.partial_results.find_or_initialize_by(author: current_user,
-                                                                     amount: 1,
-                                                                     origin: 'web')
+    answer = @question.answers.find_or_initialize_by(author: current_user)
 
-    partial_result.answer = params[:answer]
-    partial_result.save!
+    answer.answer = params[:answer]
+    answer.save!
 
     @answers_by_question_id = {@question.id => params[:answer]}
   end

app/controllers/polls_controller.rb

@@ -9,12 +9,12 @@ class PollsController < ApplicationController
   end
 
   def show
-    @questions     = @poll.questions.for_render.sort_for_list
+    @questions = @poll.questions.for_render.sort_for_list
 
     @answers_by_question_id = {}
-    poll_partial_results = Poll::PartialResult.by_question(@poll.question_ids).by_author(current_user.try(:id))
-    poll_partial_results.each do |result|
-      @answers_by_question_id[result.question_id] = result.answer
+    poll_answers = Poll::Answer.by_question(@poll.question_ids).by_author(current_user.try(:id))
+    poll_answers.each do |answer|
+      @answers_by_question_id[answer.question_id] = answer.answer
     end
   end
 

app/models/poll/answer.rb

@@ -0,0 +1,13 @@
+class Poll::Answer < ActiveRecord::Base
+
+  belongs_to :question, -> { with_hidden }
+  belongs_to :author, ->   { with_hidden }, class_name: 'User', foreign_key: 'author_id'
+
+  validates :question, presence: true
+  validates :author, presence: true
+  validates :answer, presence: true
+  validates :answer, inclusion: {in: ->(a) { a.question.valid_answers }}
+
+  scope :by_author, -> (author_id) { where(author_id: author_id) }
+  scope :by_question, -> (question_id) { where(question_id: question_id) }
+end