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8 lines
282 B
Ruby
8 lines
282 B
Ruby
class Subscription < ActiveRecord::Base
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attr_accessible :user_id, :conference_id
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validates_uniqueness_of :user_id, scope: [:conference_id]
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belongs_to :conference
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belongs_to :user
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validates_uniqueness_of :user_id, scope: :conference_id, message: 'already subscribed!'
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end
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