another stupid test with draper gem, metaprograming. I hate to decorate object every time so i wrote this.. i will use this till i find out its a bad pratice. is it bad practice ... .still wonder :|

crap 1011

lib/oleku/presentation.rb
-----------------------------------------------
module Oleku
  module Presentation
    module Video
      def self.included base
        base.send :include, InstanceMethods
      end
      module InstanceMethods
        def method_missing( meth, *args, &block)
          if meth.to_s =~ /decorate_/
            self.decorate.send(meth.to_s.gsub("decorate_", ""))
          else
            super
          end
        end
      end
    end
  end
end
-------------------------------------------------------------------------------
app/decorators/video_decorator.rb
-------------------------------------------------------------------------------
class VideoDecorator < Draper::Decorator
  include Draper::LazyHelpers
  delegate_all
  %w(rent buy).each do |type|
    VideoDecorator.class_eval do 
      define_method "#{type}_box".to_sym do
        h.content_tag :div, class: "package-detail" do
          "#{send("#{type}_package_to", (current_user.try(:currency_format) || "usd")).to_f.round(2)} #{( (current_user.try(:currency_format) || "usd").try(:upcase) )}"
        end
      end
    end
  end
end
-----------------------------------------------------------------------------------
app/models/video.rb
-----------------------------------------------------------------------------------

class Video < ActiveRecord::Base
  # ---- alot of crap code
  include Oleku::Presentation::Video
  # ---- alot of crap code
end

Nice work... :-)