Module: Golem

Defined in:
lib/golem/model/transition.rb,
lib/golem.rb,
lib/golem/visualizer.rb,
lib/golem/model/event.rb,
lib/golem/model/state.rb,
lib/golem/dsl/event_def.rb,
lib/golem/dsl/state_def.rb,
lib/golem/model/callback.rb,
lib/golem/model/condition.rb,
lib/golem/dsl/decision_def.rb,
lib/golem/dsl/transition_def.rb,
lib/golem/model/state_machine.rb,
lib/golem/dsl/state_machine_def.rb,
lib/golem/util/element_collection.rb

Overview

To change this template, choose Tools | Templates and open the template in the editor.

Defined Under Namespace

Modules: ClassMethods, DSL, Model, Util Classes: DefinitionSyntaxError, ImpossibleEvent, InvalidStateError, Visualizer

Class Method Summary collapse

Class Method Details

.included(mod) ⇒ Object 



6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'lib/golem.rb', line 6

def self.included(mod)
  mod.extend Golem::ClassMethods

  # Override the initialize method in the object we're imbuing with statemachine
  # functionality so that we can do statemachine initialization when the object
  # is instantiated.
  #
  # For ActiveRecord, we use the after_initialize callback instead.
  # FIXME: should use an ActiveRecord::Observer here since this will conflict with
  #        any user-set after_initialize callback.
  mod.class_eval do
    if Object.const_defined?('ActiveRecord') && mod < ActiveRecord::Base
      
      after_initialize do
        if respond_to?(:statemachines)
          self.statemachines.each{|name, sm| sm.init(self)}
        end
      end
      
    else
      
      alias_method :_initialize, :initialize

      def initialize(*args)
        # call the original initialize
        _initialize(*args)

        if respond_to?(:statemachines)
          self.statemachines.each{|name, sm| sm.init(self)}
        end
      end
      
    end
  end
end