private function get_old_path(File $file) {
		if (Config::$store_dir === null AND Config::$file_dir === null) {
			throw new \Exception('Set a path first in "Config::$file_dir"');
		}
		$subpath = substr(base_convert($file->md5sum, 16, 10), 0, 3);
		$subpath = implode('/', str_split($subpath)) . '/';

		if (\Skeleton\File\Config::$file_dir !== null) {
			$path = \Skeleton\File\Config::$file_dir . '/' . $subpath . $file->id . '-' . \Skeleton\File\Util::sanitize_filename($file->name);
		} else {
			$path = \Skeleton\File\Config::$store_dir . '/file/' . $subpath . $file->id . '-' . \Skeleton\File\Util::sanitize_filename($file->name);
		}

		return $path;
	}