Fix usage of _parent_invoice.currency_date in on_change

The value could be empty so we must use today instead of trying to read the field invoice.
2011-04-13 16:57:46 +02:00
parent a5bdab3583
commit 5a4fba67b5
1 changed files with 3 additions and 2 deletions
@@ -1537,8 +1537,9 @@ class InvoiceLine(ModelSQL, ModelView):
            company = company_obj.browse(Transaction().context['company'])
        currency = None
        currency_date = date_obj.today()
-        if vals.get('_parent_invoice.currency_date'):
-            currency_date = vals['_parent_invoice.currency_date']
+        if '_parent_invoice.currency_date' in vals:
+            if vals['_parent_invoice.currency_date']:
+                currency_date = vals['_parent_invoice.currency_date']
        elif vals.get('invoice'):
            invoice = invoice_obj.browse(vals['invoice'])
            currency_date = invoice.currency_date