JezK
Edit File: customer.rb
class Customer < ActiveRecord::Base composed_of :address, :mapping => [ %w(address_street street), %w(address_city city), %w(address_country country) ], :allow_nil => true composed_of :balance, :class_name => "Money", :mapping => %w(balance amount), :converter => Proc.new { |balance| balance.to_money } composed_of :gps_location, :allow_nil => true composed_of :fullname, :mapping => %w(name to_s), :constructor => Proc.new { |name| Fullname.parse(name) }, :converter => :parse end class Address attr_reader :street, :city, :country def initialize(street, city, country) @street, @city, @country = street, city, country end def close_to?(other_address) city == other_address.city && country == other_address.country end def ==(other) other.is_a?(self.class) && other.street == street && other.city == city && other.country == country end end class Money attr_reader :amount, :currency EXCHANGE_RATES = { "USD_TO_DKK" => 6, "DKK_TO_USD" => 0.6 } def initialize(amount, currency = "USD") @amount, @currency = amount, currency end def exchange_to(other_currency) Money.new((amount * EXCHANGE_RATES["#{currency}_TO_#{other_currency}"]).floor, other_currency) end end class GpsLocation attr_reader :gps_location def initialize(gps_location) @gps_location = gps_location end def latitude gps_location.split("x").first end def longitude gps_location.split("x").last end def ==(other) self.latitude == other.latitude && self.longitude == other.longitude end end class Fullname attr_reader :first, :last def self.parse(str) return nil unless str new(*str.to_s.split) end def initialize(first, last = nil) @first, @last = first, last end def to_s "#{first} #{last.upcase}" end end