class ExerciseBankQuestion < ApplicationRecord belongs_to :exercise_bank belongs_to :shixun has_many :exercise_bank_shixun_challenges,:dependent => :destroy has_many :exercise_bank_choices, :dependent => :destroy has_many :exercise_bank_standard_answers, :dependent => :destroy #attr_accessible :question_number, :question_score, :question_title, :question_type def question_type_name case self.question_type when 1 "单选题" when 2 "多选题" when 3 "填空题" when 4 "简答题" when 5 "实训题" end end end