Check if portal_type_list is not empty

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@17997 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/patches/DCWorkflow.py

@@ -511,7 +511,7 @@ def updateRoleMappings(self, REQUEST=None):
         portal_type_list.append(tid)
     elif include_default == 1:
       portal_type_list.append(tid)
-
+  if portal_type_list:
     object_list = self.portal_catalog(portal_type=portal_type_list, limit=None)
     object_list_len = len(object_list)
     portal_activities = self.portal_activities
@@ -523,6 +523,8 @@ def updateRoleMappings(self, REQUEST=None):
             .callMethodOnObjectList(current_path_list,
                                     'updateRoleMappingsFor',
                                     wf_id = self.getId())
+  else:
+    object_list_len = 0
 
   if REQUEST is not None:
     return self.manage_properties(REQUEST,