26 lines
649 B
Ruby
26 lines
649 B
Ruby
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class Event < ActiveRecord::Base
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has_one :proposition, as: :proposable
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end
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class Proposition < ActiveRecord::Base
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belongs_to :proposable, polymorphic: true
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belongs_to :proposition_accepting, polymorphic: true
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end
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class Track < ActiveRecord::Base
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end
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class AddConferenceIdToEvents < ActiveRecord::Migration
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def up
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add_reference :events, :conference, index: true, foreign_key: true
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Event.all.includes(:proposition).each do |event|
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event.update!(conference_id: event.proposition.proposition_accepting.conference_id)
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end
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end
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def down
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remove_reference :events, :conference, index: true, foreign_key: true
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end
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end
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