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class ExerciseShixunAnswer < ApplicationRecord
belongs_to :exercise_question
belongs_to :user
belongs_to :exercise_shixun_challenge
has_many :exercise_answer_comments , :dependent = > :delete_all
# status 0: 未通过， 1：
# 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
end
