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module Chouette
class Footnote < Chouette::ActiveRecord
include ChecksumSupport
belongs_to :line, inverse_of: :footnotes
has_and_belongs_to_many :vehicle_journeys, :class_name => 'Chouette::VehicleJourney'
validates_presence_of :line
def checksum_attributes
attrs = ['code', 'label']
self.slice(*attrs).values
end
end
end
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