module AASM::Persistence::Base

:nodoc:

def self.included(base) #:nodoc:
  base.extend ClassMethods
end

def aasm_new_record?
  new_record?
end

This allows for nil aasm states - be sure to add validation to your model

NOTE: intended to be called from an event

foo.current_state # => nil
foo.aasm_state = nil
foo.current_state # => :opened
foo = Foo.find(1)

foo.current_state # => :closed
foo.close
foo.current_state # => :opened
foo = Foo.new

end
end
state :closed
state :opened
aasm :column => :status do
include AASM
class Foo < ActiveRecord::Base

(example provided here for ActiveRecord, but it's true for Mongoid as well):
If it's a new record, and the aasm state column is blank it returns the initial state

Returns the value of the aasm.attribute_name - called from aasm.current_state

def aasm_read_state(name=:default)
  state = send(self.class.aasm(name).attribute_name)
  if !state || state.empty?
    aasm_new_record? ? aasm(name).determine_state_name(self.class.aasm(name).initial_state) : nil
  else
    state.to_sym
  end
end