related user doesn't always have nb games attached

app/controllers/Relation.scala

@@ -99,7 +99,7 @@ object Relation extends LilaController {
       (ctx.isAuth ?? { Env.pref.api.followableIds(users map (_.id)) }) flatMap { followables =>
         users.map { u =>
           ctx.userId ?? { env.api.fetchRelation(_, u.id) } map { rel =>
-            lila.relation.Related(u, 0, followables(u.id), rel)
+            lila.relation.Related(u, none, followables(u.id), rel)
           }
         }.sequenceFu
       }

app/controllers/User.scala

@@ -214,7 +214,7 @@ object User extends LilaController {
             (ops zip followables).map {
               case ((u, nb), followable) => ctx.userId ?? {
                 relationApi.fetchRelation(_, u.id)
-              } map { lila.relation.Related(u, nb, followable, _) }
+              } map { lila.relation.Related(u, nb.some, followable, _) }
             }.sequenceFu map { relateds =>
               html.user.opponents(user, relateds)
             }

app/views/user/relatedTable.scala.html

@@ -7,9 +7,9 @@
       <td>@userLink(r.user)</td>
       <td>@showBestPerf(r.user)</td>
       <td>
-        @if(r.nbGames > 0) {
+        @r.nbGames.filter(_ > 0).map { nbGames =>
         <a href="@routes.User.showFilter(u.username, "search")?players.b=@r.user.username" class="hint--bottom" data-hint="Games count over your last 1000 games">
-          @r.nbGames @trans.games()
+          @nbGames @trans.games()
         </a>
         }
       </td>

modules/relation/src/main/JsonView.scala

@@ -1,6 +1,7 @@
 package lila.relation
 
 import play.api.libs.json._
+import lila.common.PimpedJson._
 
 object JsonView {
 
@@ -10,6 +11,7 @@ object JsonView {
         "user" -> r.user,
         "nbGames" -> r.nbGames,
         "followable" -> r.followable,
-        "relation" -> r.relation)
+        "relation" -> r.relation
+      ).noNull
     }
 }

modules/relation/src/main/Related.scala

@@ -2,6 +2,6 @@ package lila.relation
 
 case class Related(
     user: lila.user.User,
-    nbGames: Int,
+    nbGames: Option[Int],
     followable: Boolean,
     relation: Option[Relation])