Do not override existing lines in invoice creation

review931002
2013-09-19 18:45:11 +02:00
parent 45de5fcd03
commit f0ec950f89
1 changed files with 3 additions and 1 deletions
@@ -738,7 +738,9 @@ class Sale(Workflow, ModelSQL, ModelView):
            return

        invoice = self._get_invoice_sale(invoice_type)
-        invoice.lines = list(chain.from_iterable(invoice_lines.itervalues()))
+        invoice.lines = ((list(invoice.lines)
+                if hasattr(invoice, 'lines') else [])
+            + list(chain.from_iterable(invoice_lines.itervalues())))
        invoice.save()

        with Transaction().set_user(0, set_context=True):