module_included_hook

🧩 Use included Hook in Modules

When a module is included in a class, the included method is called. You can use it to extend class methods or set up callbacks automatically.

module Trackable
  def self.included(base)
    base.extend ClassMethods
  end

  module ClassMethods
    def track
      puts "Tracking #{name}"
    end
  end
end

class Order
  include Trackable
end

Order.track   # => "Tracking Order"