Module: StateMachine::ClassMethods

Included in:
Integrations::ActiveModel
Defined in:
lib/state_machine/extensions.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(base) ⇒ Object

:nodoc:



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# File 'lib/state_machine/extensions.rb', line 5

def self.extended(base) #:nodoc:
  base.class_eval do
    @state_machines = MachineCollection.new
  end
end

Instance Method Details

#state_machines ⇒ Object

Gets the current list of state machines defined for this class. This class-level attribute acts like an inheritable attribute. The attribute is available to each subclass, each having a copy of its superclass’s attribute.

The hash of state machines maps :attribute => machine, e.g.

Vehicle.state_machines # => {:state => #<StateMachine::Machine:0xb6f6e4a4 ...>}



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# File 'lib/state_machine/extensions.rb', line 19

def state_machines
  @state_machines ||= superclass.state_machines.dup
end