Methods
Private Instance methods
notify_observers(method)

Fires notifications to model’s observers

def save 

  notify_observers(:before_save)
  ...
  notify_observers(:after_save)

end

[ show source ]

      # File activemodel/lib/active_model/observing.rb, line 89
89:       def notify_observers(method)
90:         self.class.notify_observers(method, self)
91:       end