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Contents
require File.join(File.dirname(__FILE__), 'state_transition')
module AASM
module SupportingClasses
class Event
attr_reader :name, :success
def initialize(name, options = {}, &block)
@name = name
@success = options[:success]
@transitions = []
instance_eval(&block) if block
end
def fire(obj, to_state=nil, *args)
transitions = @transitions.select { |t| t.from == obj.aasm_current_state }
raise AASM::InvalidTransition, "Event '#{name}' cannot transition from '#{obj.aasm_current_state}'" if transitions.size == 0
next_state = nil
transitions.each do |transition|
next if to_state and !Array(transition.to).include?(to_state)
if transition.perform(obj)
next_state = to_state || Array(transition.to).first
transition.execute(obj, *args)
break
end
end
next_state
end
def transitions_from_state?(state)
@transitions.any? { |t| t.from == state }
end
def execute_success_callback(obj)
case success
when String, Symbol:
obj.send(success)
when Array:
success.each { |meth| obj.send(meth) }
when Proc:
success.call(obj)
end
end
private
def transitions(trans_opts)
Array(trans_opts[:from]).each do |s|
@transitions << SupportingClasses::StateTransition.new(trans_opts.merge({:from => s.to_sym}))
end
end
end
end
end
Version data entries
11 entries across 11 versions & 6 rubygems