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class ContestMessage < ActiveRecord::Base
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# Work：status：
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# nil：发布了作业； 1：截止时间到了提醒！；2:开启在线评审； 3：关闭在线评审； 4：匿评开始失败； 5：在线评审时间快到了
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attr_accessible :content, :contest_message_id, :contest_message_type, :status, :viewed, :user_id, :contest_id
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belongs_to :contest_message ,:polymorphic => true
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belongs_to :user
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belongs_to :contest
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has_many :message_alls, :class_name => 'MessageAll',:as =>:message, :dependent => :destroy
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validates :user_id, presence: true
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validates :contest_id, presence: true
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validates :contest_message_id, presence: true
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validates :contest_message_type, presence: true
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after_create :add_user_message
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def add_user_message
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if MessageAll.where("message_type = '#{self.class.to_s}' and message_id = '#{self.id}'").first.nil? && self.status != 9
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self.message_alls << MessageAll.new(:user_id => self.user_id)
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end
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end
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end
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