Added token to poll voters

app/controllers/polls/questions_controller.rb

@@ -7,11 +7,11 @@ class Polls::QuestionsController < ApplicationController
 
   def answer
     answer = @question.answers.find_or_initialize_by(author: current_user)
+    token = params[:token]
 
     answer.answer = params[:answer]
-    answer.token = params[:token]
     answer.save!
-    answer.record_voter_participation
+    answer.record_voter_participation(token)
 
     @answers_by_question_id = { @question.id => params[:answer] }
   end

app/controllers/polls_controller.rb

@@ -14,7 +14,6 @@ class PollsController < ApplicationController
 
   def show
     @questions = @poll.questions.for_render.sort_for_list
-    @token = poll_answer_author_token(@poll, current_user)
     @answers_by_question_id = {}
     poll_answers = ::Poll::Answer.by_question(@poll.question_ids).by_author(current_user.try(:id))
     poll_answers.each do |answer|

app/models/poll/answer.rb

@@ -17,7 +17,10 @@ class Poll::Answer < ActiveRecord::Base
   scope :by_author, ->(author_id) { where(author_id: author_id) }
   scope :by_question, ->(question_id) { where(question_id: question_id) }
 
-  def record_voter_participation
-    Poll::Voter.find_or_create_by!(user: author, poll: poll, origin: "web")
+  def record_voter_participation(token)
+    Poll::Voter.find_or_create_by!(user: author, poll: poll, origin: "web") do |poll_voter|
+        poll_voter.token = token            unless poll_voter.token.present?
+        poll_voter.token_seen_at = Time.now unless poll_voter.token_seen_at.present?
+    end
   end
 end

db/migrate/20171006102811_add_token_to_poll_answer.rb

@@ -1,5 +0,0 @@
-class AddTokenToPollAnswer < ActiveRecord::Migration
-  def change
-    add_column :poll_answers, :token, :string
-  end
-end

db/migrate/20171006145053_add_token_to_poll_voters.rb

@@ -0,0 +1,6 @@
+class AddTokenToPollVoters < ActiveRecord::Migration
+  def change
+    add_column :poll_voters, :token, :string
+    add_column :poll_voters, :token_seen_at, :date
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20171006102811) do
+ActiveRecord::Schema.define(version: 20171006145053) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -592,7 +592,6 @@ ActiveRecord::Schema.define(version: 20171006102811) do
     t.string   "answer"
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "token"
   end
 
   add_index "poll_answers", ["author_id"], name: "index_poll_answers_on_author_id", using: :btree
@@ -761,6 +760,8 @@ ActiveRecord::Schema.define(version: 20171006102811) do
     t.integer  "user_id"
     t.string   "origin"
     t.integer  "officer_id"
+    t.string   "token"
+    t.date     "token_seen_at"
   end
 
   add_index "poll_voters", ["booth_assignment_id"], name: "index_poll_voters_on_booth_assignment_id", using: :btree