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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