Do not fail on non-existing business template properties when generating the...

Do not fail on non-existing business template properties when generating the list of contained paths (used in Base_viewOrphanObjectList listbox list method).



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11372 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessTemplate.py

@@ -4535,7 +4535,8 @@ Business Template is a set of definitions, such as skins, portal types and categ
       """
       items_list = []
       for item_name in self._item_name_list:
-        item = getattr(self, item_name)
+        item = getattr(self, item_name, None)
+        if item is not None:
           items_list.extend(item.getKeys())
       return items_list