order.rb in simplificator-billboard-api-0.6.1

- old
+ new
@@ -1,5 +1,42 @@
 module BillboardApi
   class Order < ActiveResource::Base
-    self.site = "http://billboard.garden.u2.simplificator.com"
+    
+    # Create an URL which can be used to redirect the client to paypal.
+    # It will include information about the order (id), amount, currency and so on.
+    # Some options can be overriden by using the options hash.
+    #  * paypal_notify_url
+    #  * paypal_receiver_email
+    #  * return_after_payment_url
+    # 
+    def paypal_url(options = {})
+       values = {
+         :business => BillboardApi::Config.instance.paypal_receiver_email(options[:paypal_receiver_email]),
+         :return => BillboardApi::Config.instance.return_after_payment_url(options[:return_after_payment_url]),
+         :invoice => self.id,
+         :cmd => '_cart',
+         :upload => 1,
+         :currency_code => self.currency,
+       }
+       values[:notify_url] = BillboardApi::Config.instance.paypal_notify_url(options[:paypal_notify_url])
+
+       self.line_items_attributes.each_with_index do |line_item, index|
+         values.merge!({
+           "amount_#{index + 1}" => "%0.2f" % line_item.price_francs.to_f,
+           "item_name_#{index + 1}" => line_item.description,
+           "item_number_#{index + 1}" => line_item.id,
+           "quantity_#{index + 1}" => line_item.amount
+         })
+       end
+
+       unless self.vat_total == 0
+         values.merge!({
+           "amount_#{self.line_items.size + 1}" => "%0.2f" % (self.vat_total.to_f / 100),
+           "item_name_#{self.line_items.size + 1}" => "MwSt.",
+           "quantity_#{self.line_items.size + 1}" => 1
+         })
+       end
+       
+       "#{BillboardApi::Config.instance.paypal_service_url}?#{values.to_query}"
+     end
   end
 end
\ No newline at end of file