gistfile1.rb

class Riddle
  include DataMapper::Resource
  property    :id,           Serial

  property :created_at, DateTime
  property :updated_at, DateTime

  property :title,           String

  property    :html,         Text
  property    :html_engine,  String
  property    :css,          Text
  property    :css_engine,   String
  property    :js,           Text
  property    :js_engine,    String

  def title=(value) 
    super(value.empty? ? "Yet another untitled Riddle" : value) 
  end 
end

DataMapper.finalize