Dynamically define all HTTP response codes

file utils.rb:
--------------
require 'webrick'

module Utils
  WEBrick::HTTPStatus::StatusMessage.each do | k, v |
    self.const_set "HTTP_#{k}_#{v.upcase.tr ' -', '_'}".to_sym, k
  end
end

file app.rb:
------------
require 'utils'

puts Utils::HTTP_200_OK.      # => 200
puts Utils::HTTP_201_CREATED  # => 201
                              # etc.