protected static function extract_item_record_from_record(stdClass $record) {
        $newrec = new stdClass();
        foreach ($record as $key => $value) {
            if (strpos($key, 'item') !== 0) {
                continue;
            }
            $key = substr($key, 4);
            $newrec->{$key} = $value;
        }
        return $newrec;
    }