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