fix: Game class show fix (#1719)

* fix: made games with no classes invisible

* fix: made games with no classes invisible

* remove print()

aimmo/templatetags/players_utils.py

@@ -11,13 +11,16 @@ def get_user_playable_games(context, base_url):
     user = context.request.user
     teacher = user.new_teacher
     if logged_in_as_teacher(user):
-        playable_games = list(Game.objects.filter(owner=user, is_archived=False))
+        playable_games = list(Game.objects.filter(owner=user, is_archived=False).exclude(game_class=None))
         if teacher.is_admin:
             playable_games += list(
-                Game.objects.filter(game_class__teacher__school=teacher.school, is_archived=False).exclude(owner=user)
+                Game.objects.filter(game_class__teacher__school=teacher.school, is_archived=False)
+                # passing multiple args does not seem to work
+                .exclude(owner=user).exclude(game_class=None)
             )
     else:
         playable_games = Game.objects.none()
+
     return {
         "user": user,
         "base_url": base_url,