candidate quiz progression work

app/controllers/candidate_controller.rb

@@ -3,10 +3,12 @@ class CandidateController < ApplicationController
   end
 
   def question
-    candidate = Candidate.order("RAND()").first
-    @status = QuizStatus.new(candidate)
-    @question = candidate.fetch_question(candidate.questions.order("RAND()")[[*0..9].sample].id)
-    # .where(input_type: 'live-coder')
+    @status = QuizStatus.new(current_candidate)
+    qid = @status.current_question_id
+
+    redirect_to :summary and return if qid.nil?
+
+    @question = current_candidate.fetch_question(qid)
   end
 
   def update_question
@@ -16,9 +18,10 @@ class CandidateController < ApplicationController
   end
 
   def summary
-    @candidate = Candidate.order("RAND()").first # Candidate.where(test_hash: '6NjnourLE6Y').first
-    @quiz = @candidate.my_quiz
-    @status = QuizStatus.new(@candidate)
+    @quiz = current_candidate.my_quiz
+    @status = QuizStatus.new(current_candidate)
+
+    redirect_to :question and return unless @status.current_question_id.nil?
   end
 
   def update_summary

app/workers/candidate_quiz.rb

@@ -24,7 +24,7 @@ class CandidateQuiz
                inner join questions q on q.quiz_id = c.quiz_id
                left join answers a on a.candidate_id = c.id AND a.question_id = q.id
              where q.active = true and c.id = #{candidate_id} #{question}
-             order by c.id, q.sort;"
+             order by q.sort;"
       ActiveRecord::Base.connection.exec_query(sql)
     end
 end

app/workers/quiz_status.rb

@@ -27,4 +27,16 @@ class QuizStatus
 
     (answs / total * 100).round.to_i
   end
+
+  def current_question_id
+    sql = "select q.id question_id
+           from candidates c
+             inner join questions q on q.quiz_id = c.quiz_id
+             left join answers a on a.candidate_id = c.id AND a.question_id = q.id
+           where q.active = true and c.id = #{candidate.to_i}
+             and (a.id is null OR a.submitted is false)
+           order by q.sort limit 1;"
+    result = ActiveRecord::Base.connection.exec_query(sql).to_hash.first
+    result['question_id'] unless result.nil?
+  end
 end

test/workers/quiz_status_test.rb

@@ -77,4 +77,25 @@ class QuizStatusTest < ActiveSupport::TestCase
 
     assert_equal 0, status.progress
   end
+
+  test "roy is on question 3" do
+    roy = candidates :roy
+    status = QuizStatus.new roy
+
+    assert_equal questions(:fed3).id, status.current_question_id
+  end
+
+  test "martha is on question 1" do
+    martha = candidates :martha
+    status = QuizStatus.new martha
+
+    assert_equal questions(:fed1).id, status.current_question_id
+  end
+
+  test "richard is summary" do
+    richard = candidates :richard
+    status = QuizStatus.new richard
+
+    assert_equal nil, status.current_question_id
+  end
 end