make sure there is a least one check in a traveler check sale

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11194 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_banking_check/WorkflowTemplateItem/portal_workflow/traveler_check_sale_workflow/scripts/validatePositionAccounting.xml

@@ -144,6 +144,10 @@ if total_debit>0:\n
     msg = Message(domain=\'ui\', message="Unknown error code.")\n
     raise ValidationFailed, (msg,)\n
 \n
+if total_debit==0:\n
+  msg = Message(domain=\'ui\', message=\'Please select at least one traveler check.\')\n
+  raise ValidationFailed, (msg,)\n
+\n
 date = transaction.getStartDate()\n
 source = transaction.getSource(None)\n
 if source is None:\n

bt5/erp5_banking_check/bt/revision

-44
+46
\ No newline at end of file