Do not assume the path always exists in the domain tree (eg. the

category has been deleted in the meanwhile)


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@5980 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/ListBox.py

@@ -882,7 +882,9 @@ class ListBoxWidget(Widget.Widget):
               base_category = domain.split('/')[0]
               if portal_categories is not None:
                 if base_category in portal_categories.objectIds():
-                  root = root_dict[base_category] = portal_categories.restrictedTraverse(domain)
+                  root = portal_categories.restrictedTraverse(domain, None)
+                  if root is not None :
+                    root_dict[base_category] = root
               if root is None and portal_domains is not None:
                 if base_category in portal_domains.objectIds():
                   base_domain = portal_domains.getDomainByPath(domain)