Acts As State Machine (AASM) with callback sample code that was initial, non-functioning, implementation

AASM_Callback_Fail

class Tester < ActiveRecord::Base
  include AASM
  aasm_initial_state :inactive
  aasm_state :inactive    
  aasm_state :active, 
    :after_enter => :after_active_state
  
  aasm_event :activate do
    transitions :to => :active, 
                :from => [:inactive], 
                :after => :after_event
  end
  
  aasm_event :pause do
    transitions :to => :inactive, 
                :from => [:active]
  end
  
  def after_event
    logger.debug("** after_event ")
  end
  
  def after_active_state
    logger.debug("** after_active_state")
  end
end