Active Support Callbacks

as-callback.rb

require 'active_support'

class Record
  include ActiveSupport::Callbacks
  define_callbacks :save

  def save
    run_callbacks :save do
      puts "save!"
    end
  end
end

class PersonRecord < Record
  set_callback :save, :before, :before_save_message
  set_callback :save, :after, :after_save_message

  def before_save_message
    puts "before save"
  end

  def after_save_message
    puts "after save"
  end
end

person = PersonRecord.new
person.save