An extended Link for the use of a single Loc for multiple languages.

LocalizedLink.scala

package code.lib

import net.liftweb.http.{S, Req}
import net.liftweb.sitemap.Loc

/**
 * Loc that matches multiple paths, one for each language.
 *
 * @param uris Maps languages to paths, e.g.
 *             Map(
 *             "de" -> ("de" :: "mein-konto" :: Nil),
 *             "en" -> ("en" :: "my-account" :: Nil)
 *             )
 */
class LocalizedLink[T](uris: Map[String, List[String]])
  extends Loc.Link[T](uris.headOption.map(_._2).getOrElse(Nil)) {

  val myPaths = uris.values.toList

  override def isDefinedAt(req: Req): Boolean = {
    if (matchHead_?) myPaths.contains(req.path.partPath.take(uriList.length))
    else myPaths.contains(req.path.partPath)
  }

  override def pathList(value: T): List[String] = {
    uris.get(S.locale.getLanguage).getOrElse(uris("en"))
  }
}