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class ChallengeChoose < ActiveRecord::Base
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# attr_accessible :title, :body
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# category 1 单选， 2，多选
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# standard_answer 正确答案 answer： 答题的思路, 取标准答案的时候如果该项不为空则优先选择该项
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default_scope :order => 'position'
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belongs_to :challenge
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has_many :challenge_tags, :dependent => :destroy
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has_many :challenge_questions, :dependent => :destroy
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has_one :choose_outputs, :dependent => :destroy
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#has_many :outputs, :dependent => :destroy
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validates_presence_of :subject
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# 判断当前用户是否答题
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def current_choose_outputs
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ChooseOutputs.where(:challenge_choose_id => self.id, :user_id => User.current.id).first
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end
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end
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