class FooCallbackMultiple include AASM aasm(:left) do state :open, :initial => true, :before_exit => :before_exit state :closed, :before_enter => :before_enter state :final event :close, :success => :success_callback do transitions :from => [:open], :to => [:closed] end event :null do transitions :from => [:open], :to => [:closed, :final], :guard => :always_false end end aasm(:right, :column => :right) do state :green, :initial => true state :yellow state :red event :green do transitions :from => [:yellow], :to => :green end event :yellow do transitions :from => [:green, :red], :to => :yellow end event :red do transitions :from => [:yellow], :to => :red end end def always_false false end def success_callback end def before_enter end def before_exit end end