def enumerateColumns( self ): """Return field names of data to be cached on query results.""" standard = CatalogTool.enumerateColumns(self) custom = ('status', 'submitter_id', 'topic', 'classification', 'importance', 'security_related', 'confidential', 'version_info', 'assigned_to', 'uploads', 'action_number', 'upload_number', ) return standard + custom