default_addresses_extension.rb

# Uncomment this if you reference any of your controllers in activate
# require_dependency 'application'

class DefaultAddressesExtension < Spree::Extension
  version "1.0"
  description "Describe your extension here"
  url "http://yourwebsite.com/default_addresses"

  # Please use default_addresses/config/routes.rb instead for extension routes.

  # def self.require_gems(config)
  #   config.gem "gemname-goes-here", :version => '1.2.3'
  # end
  
  def activate
    Address.class_eval do
      belongs_to :user
      has_many :shipments

      if Spree::Version::Major.to_i > 0 || Spree::Version::Minor.to_i > 8
        has_many :checkouts, :foreign_key => "bill_address_id"
        # can modify an address if it's not been used in an order (but checkouts controller has finer control)
        def editable?
          new_record? || (shipments.empty? && checkouts.empty?)
        end
      else
        has_many :orders, :foreign_key => "bill_address_id"
        # can modify an address if it's not been used in an order (but checkouts controller has finer control)
        def editable?
          new_record? || (shipments.empty? && orders.empty?)
        end
      end

      # can modify an address if it's not been used in an order (but checkouts controller has finer control)
      def self.default(user = nil)
        new(:country => Country.find(Spree::Config[:default_country_id]), :user => user)
      end

      def zone
        (state && state.zone) ||
          (country && country.zone)
      end

      def zones
        Zone.match(self)
      end

      def same_as?(other)
        attributes.except("id", "updated_at", "created_at") ==  other.attributes.except("id", "updated_at", "created_at")
      end
      alias same_as same_as?

      def clone
        editable? ? self : super
      end

      def to_s
        "#{full_name}: #{address1}"
      end
    end

    User.class_eval do
      has_many :addresses

      belongs_to :ship_address, :class_name => "Address", :foreign_key => "ship_address_id"
      belongs_to :bill_address, :class_name => "Address", :foreign_key => "bill_address_id"

      # prevents a user from submitting a crafted form that bypasses activation
      # anything else you want your user to change should be added here.
      attr_accessible :email, :password, :password_confirmation, :ship_address_id, :bill_address_id
    end

    OrderTransactionObserver.instance
  end
end