Example for AASM feature request

scenario.rb

require 'aasm'
require 'timers'

class TimedStateMachineExample
	include AASM
	
	TRANSITION_SECONDS = 5

	def initialize(timers)
		@timers = timers || Timers.new
	end
	
	aasm do
		state :first, initial: true, before_enter: :begin_timed_transition
		state :second
		state :third
		
		
		event :one do
			transitions from: :third, to: :first
		end
		
		event :two do
			transitions from: :first, to: :second
		end
		
		event :three do
			transitions from: :second, to: :third
		end
	end

	private
	def begin_timed_transition
		@transition_timer = @timers.after(TRANSITION_SECONDS) { finish_timed_transition }
	end
	
	def finish_timed_transition
		two
	end
end


def main
	timers = Timers.new
	uut = TimedStateMachineExample.new(timers)
	timers.wait
	puts 'If the state machine was initialized on object instantiation, the next line will say "second":'
	puts uut.aasm.current_state
end


main if $0 === __FILE__

workaround.rb

require 'aasm'
require 'timers'

class TimedStateMachineExample
	include AASM
	
	TRANSITION_SECONDS = 5

	def initialize(timers)
		@timers = timers || Timers.new
		aasm.current_state
	end
	
	aasm do
		state :first, initial: true, before_enter: :begin_timed_transition
		state :second
		state :third
		
		
		event :one do
			transitions from: :third, to: :first
		end
		
		event :two do
			transitions from: :first, to: :second
		end
		
		event :three do
			transitions from: :second, to: :third
		end
	end

	private
	def begin_timed_transition
		@transition_timer = @timers.after(TRANSITION_SECONDS) { finish_timed_transition }
	end
	
	def finish_timed_transition
		two
	end
end


def main
	timers = Timers.new
	uut = TimedStateMachineExample.new(timers)
	timers.wait
	puts 'If the state machine was initialized on object instantiation, the next line will say "second":'
	puts uut.aasm.current_state
end


main if $0 === __FILE__