Methods
Classes and Modules
Module AASM::Persistence::ActiveRecordPersistence::ClassMethods
Module AASM::Persistence::ActiveRecordPersistence::InstanceMethods
Module AASM::Persistence::ActiveRecordPersistence::ReadState
Module AASM::Persistence::ActiveRecordPersistence::WriteState
Module AASM::Persistence::ActiveRecordPersistence::WriteStateWithoutPersistence
Public Class methods
included(base)

This method:

Unless the corresponding methods are already defined, it includes

Adds 

  before_validation_on_create :aasm_ensure_initial_state

As a result, it doesn‘t matter when you define your methods - the following 2 are equivalent 

  class Foo < ActiveRecord::Base
    def aasm_write_state(state)
      "bar"
    end
    include AASM
  end

  class Foo < ActiveRecord::Base
    include AASM
    def aasm_write_state(state)
      "bar"
    end
  end

[ show source ]

    # File lib/persistence/active_record_persistence.rb, line 34
34:       def self.included(base)
35:         base.extend AASM::Persistence::ActiveRecordPersistence::ClassMethods
36:         base.send(:include, AASM::Persistence::ActiveRecordPersistence::InstanceMethods)
37:         base.send(:include, AASM::Persistence::ActiveRecordPersistence::ReadState) unless base.method_defined?(:aasm_read_state)
38:         base.send(:include, AASM::Persistence::ActiveRecordPersistence::WriteState) unless base.method_defined?(:aasm_write_state)
39:         base.send(:include, AASM::Persistence::ActiveRecordPersistence::WriteStateWithoutPersistence) unless base.method_defined?(:aasm_write_state_without_persistence)        
40:         base.before_validation_on_create :aasm_ensure_initial_state
41:       end