class ExerciseShixunAnswer < ApplicationRecord
  belongs_to :exercise_question
  belongs_to :user
  belongs_to :exercise_shixun_challenge
  has_many :exercise_answer_comments
  # status 0: 未通过， 1：通过
  # attr_accessible :answer_text, :score, :status
  scope :search_shixun_answers, lambda {|name,ids| where("#{name}":ids)}
  scope :search_shixun_keys, lambda { |name,key| where("#{name} = ?",key)}
  scope :shixun_no_full_scores, lambda { |score| where("score > 0.0 AND score < ?",score)}
  scope :score_reviewed, lambda {where("score is not NULL AND score >= ?",0.0)}   #是否评分

  after_destroy :destroy_shixun_relations

  def destroy_shixun_relations
    exercise_answer_comments.destroy_all
  end
end