json.course do
  json.partial! "polls/course_name",locals:{course:@course}
end

json.question_types do
  json.q_counts @poll_questions_count
  json.q_singles @poll_question_singles
  json.q_doubles @poll_question_doubles
  json.q_mains @poll_question_mains
end

if @poll_questions_count > 0
  json.questions do
    json.array! @poll_questions do |question|
      json.partial! "polls/commit_answers_result", question: question,
                    answers:question.poll_answers,
                    question_votes:question.poll_votes    #问题的全部答案
    end
  end
else
  json.questions []
end
