gistfile1.rb

  class Address < DataMapper::Type
    include DataMapper::Resource
    property :address, String
    property :city,    String
    property :state,   String
    property :zip,     Integer
  end
  
  class User
    include DataMapper::Resource
    property :id,       DataMapper::Mongo::Types::ObjectID
    property :name,     String
    property :address,  Address
  end