Ruby Decorator Recipe

decorators.rb

module Decorator
  def initialize(component)
    @component = component
  end

  def method_missing(meth, *args)
    if @component.respond_to?(meth)
      @component.send(meth, *args)
    else
      super
    end
  end

  def respond_to?(meth)
    @component.respond_to?(meth)
  end
end

class UserDecorator < User
  include Decorator
  
  def full_name
    first_name + ' ' + last_name
  end
end
# Credit: https://robots.thoughtbot.com/evaluating-alternative-decorator-implementations-in