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class TrustieHack < ApplicationRecord
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validates_length_of :description, maximum: 500, message: "不能超过500个字符"
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has_many :hack_users, :dependent => :destroy
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belongs_to :trustie_hackathon, counter_cache: true
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def entry_info(user_id)
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hack_users.exists?(user_id: user_id)
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end
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end
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