When an object inherits from Folder after it was instanciated, it lacks its

BTreeFolder properties, which have to be recreated.
Doing this in objectValues allows to fix them by calling ERP5Site_reindexAll.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@10226 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Document/Folder.py

@@ -769,6 +769,10 @@ be a problem)."""
     """
     if meta_type is not None:
       spec = meta_type
+    # when an object inherits from Folder after it was instanciated, it lacks
+    # its BTreeFolder properties.
+    if getattr(self, '_tree', None) is None:
+      self._initBTrees()
     object_list = CMFBTreeFolder.objectValues(self, spec=spec)
     if portal_type is not None:
       if type(portal_type) == type(''):