# -*- encoding : utf-8 -*- class QuestionSet < ActiveRecord::Base belongs_to :survey_item belongs_to :survey_set attr_accessible :answer_sets_attributes, :survey_item, :survey_item_id, :boolean_content, :content has_many :answer_sets accepts_nested_attributes_for :answer_sets scope :dont_answered, includes(:answer_sets).where("answer_sets.is_checked == ?", false) end