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# == Schema Information
#
# Table name: subscriptions
#
# id :integer not null, primary key
# user_id :integer
# subscribable_id :integer
# subscribable_type :string(255)
# subscribed :boolean
# created_at :datetime
# updated_at :datetime
#
class Subscription < ActiveRecord::Base
belongs_to :user
belongs_to :subscribable, polymorphic: true
validates :user_id,
uniqueness: { scope: [:subscribable_id, :subscribable_type] },
presence: true
end
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