simple question attachments

app/views/candidate/question.html.erb

@@ -9,6 +9,10 @@
   <main class="answer-sec <%= @question.input_type %>-type questions_tpl" data-qid="<%= @question.question_id %>">
     <h2 class="question-text"><%= @question.question %></h2>
 
+    <% if @question.attachment.present? %>
+      <%= image_tag @question.attachment %>
+    <% end %>
+
     <div class="content-well">
       <%= hidden_field_tag 'answer[question_id]', @question.question_id %>
       <%= hidden_field_tag 'answer[answer_id]', @question.answer_id %>

app/workers/candidate_quiz.rb

@@ -1,8 +1,8 @@
 class CandidateQuiz
   attr_reader :candidate_id
 
-  def initialize candidate_id
-    @candidate_id = candidate_id
+  def initialize candidate
+    @candidate_id = candidate.to_i
   end
 
   def fetch_question qid
@@ -18,7 +18,7 @@ class CandidateQuiz
     def raw_quiz qid = nil
       question = qid.nil? ? "" : " and q.id = #{qid} "
       sql = "select c.id candidate_id, q.quiz_id, q.id question_id, a.id answer_id, q.sort
-               , q.question, q.category, q.input_type, q.input_options, a.answer
+               , q.question, q.attachment, q.category, q.input_type, q.input_options, a.answer
                , ifnull(a.saved, false) saved, ifnull(a.submitted, false) submitted , a.updated_at
              from candidates c
                inner join questions q on q.quiz_id = c.quiz_id

app/workers/candidate_quiz_question.rb

@@ -26,6 +26,10 @@ class CandidateQuizQuestion
     row["question"]
   end
 
+  def attachment
+    row['attachment']
+  end
+
   def category
     row["category"]
   end