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class Message < ActiveRecord::Base
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has_many :reports, :through => :logs
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has_many :logs
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validates :value, :digest, :presence => true
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def to_s
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value
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end
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def self.find_or_create val
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digest = Digest::SHA1.hexdigest(val)
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Message.where(:digest => digest).first || Message.create(:value => val, :digest => digest)
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end
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def skip_strip_attrs
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['value']
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end
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end
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