public static function __getClassPath($handle)
    {
        if (is_file(DATASOURCES . "/data.$handle.php")) {
            return DATASOURCES;
        } else {
            $extensions = Symphony::ExtensionManager()->listInstalledHandles();

            if (is_array($extensions) && !empty($extensions)) {
                foreach ($extensions as $e) {
                    if (is_file(EXTENSIONS . "/$e/data-sources/data.$handle.php")) {
                        return EXTENSIONS . "/$e/data-sources";
                    }
                }
            }
        }

        return false;
    }