current_invoice_line.rb in rconomic-0.2.0

- old
+ new

@@ -1,13 +1,37 @@
 require 'economic/entity'
 require 'economic/current_invoice'
 
 module Economic
 
+  # Represents a current invoice line.
+  #
+  # API documentation: http://www.e-conomic.com/apidocs/Documentation/T_Economic_Api_ICurrentInvoiceLine.html
+  #
+  # See Economic::CurrentInvoice for usage example
   class CurrentInvoiceLine < Entity
     has_properties :invoice_handle, :description, :delivery_date, :unit_handle, :product_handle, :quantity, :unit_net_price, :discount_as_percent, :unit_cost_price, :total_net_amount, :total_margin, :margin_as_percent
 
+    def handle
+      Handle.new(:number => number)
+    end
+
+    def invoice
+      return nil if invoice_handle.blank?
+      @invoice ||= session.current_invoices.find(invoice_handle)
+    end
+
+    def invoice=(invoice)
+      self.invoice_handle = invoice.handle
+      @invoice = invoice
+    end
+
+    def invoice_handle=(handle)
+      @invoice = nil unless handle == @invoice_handle
+      @invoice_handle = handle
+    end
+
     def initialize_defaults
       self.invoice_handle = nil
       self.description = nil
       self.delivery_date = nil
       self.unit_handle = nil
@@ -25,10 +49,10 @@
     # to be sent via SOAP
     def build_soap_data
       data = ActiveSupport::OrderedHash.new
 
       data['Number'] = 0 # Doesn't seem to be used
-      data['InvoiceHandle'] = { 'Id' => invoice_handle[:id] } unless invoice_handle.blank?
+      data['InvoiceHandle'] = invoice.handle.to_hash unless invoice.blank?
       data['Description'] = description unless description.blank?
       data['DeliveryDate'] = delivery_date
       data['UnitHandle'] = { 'Number' => unit_handle[:number] } unless unit_handle.blank?
       data['ProductHandle'] = { 'Number' => product_handle[:number] } unless product_handle.blank?
       data['Quantity'] = quantity unless quantity.blank?
\ No newline at end of file