show user language WIP

app/controllers/LilaController.scala

@@ -12,7 +12,7 @@ import scalaz.Zero
 import lila.app._
 import lila.common.LilaCookie
 import lila.security.{ Permission, Granter }
-import lila.user.{ Context, HeaderContext, BodyContext, User ⇒ UserModel }
+import lila.user.{ Context, HeaderContext, BodyContext, UserRepo, User ⇒ UserModel }
 
 private[controllers] trait LilaController
     extends Controller
@@ -177,7 +177,9 @@ private[controllers] trait LilaController
   private def restoreUser(req: RequestHeader): Fu[Option[UserModel]] =
     Env.security.api restoreUser req addEffect {
       _ foreach { user ⇒
-        lila.user.UserRepo setSeenAt user.id 
+        UserRepo setSeenAt user.id 
+        val lang = Env.i18n.pool.lang(req).language
+        if (user.lang != lang.some) UserRepo.setLang(user.id, lang)
         Env.user setOnline user 
         user.seenAt.isEmpty ?? Env.relation.autofollow(user) 
       }

app/templating/I18hHelper.scala

@@ -22,7 +22,8 @@ trait I18nHelper {
 
   implicit def lang(implicit ctx: Context) = pool lang ctx.req
 
-  def langName(lang: Lang) = LangList name lang.language
+  def langName(lang: Lang): Option[String] = langName(lang.language)
+  def langName(lang: String): Option[String] = LangList name lang
 
   def translationCall(implicit ctx: Context) =
     if (ctx.req.cookies.get(hideCallsCookieName).isDefined) None

app/views/user/mini.scala.html

@@ -7,4 +7,9 @@
   @trans.followsYou()
   }
 </div>
+@u.lang.map { l =>
+@langName(l).map { name =>
+<span class="lang">@name</span>
+}
+}
 <div class="content relation_actions">@relation.actions(u.id)</div>

modules/user/src/main/User.scala

@@ -20,7 +20,8 @@ case class User(
     engine: Boolean = false,
     toints: Int = 0,
     createdAt: DateTime,
-    seenAt: Option[DateTime]) extends Ordered[User] {
+    seenAt: Option[DateTime],
+    lang: Option[String]) extends Ordered[User] {
 
   override def equals(other: Any) = other match {
     case u: User ⇒ id == u.id
@@ -78,5 +79,6 @@ object User {
     "engine" -> false,
     "toints" -> 0,
     "roles" -> Json.arr(),
-    "seenAt" -> none[DateTime])
+    "seenAt" -> none[DateTime],
+    "lang" -> none[String] )
 }

modules/user/src/main/UserRepo.scala

@@ -191,6 +191,10 @@ object UserRepo {
     $update.fieldUnchecked(id, "seenAt", $date(DateTime.now))
   }
 
+  def setLang(id: ID, lang: String) {
+    $update.fieldUnchecked(id, "lang", lang)
+  }
+
   def idsAverageElo(ids: Iterable[String]): Fu[Int] = ids.isEmpty ? fuccess(0) | {
     import reactivemongo.bson._
     import reactivemongo.core.commands._