Resolve "Show only teachers with courses in the current school term"

Closes #274 (closed)

aleksis/apps/chronos/schema/__init__.py

@@ -242,7 +242,9 @@ class Query(graphene.ObjectType):
     timetable_days = graphene.List(graphene.Int)
 
     def resolve_timetable_teachers(self, info, **kwargs):
-        return graphene_django_optimizer.query(get_teachers(info.context.useri, request=info.context), info)
+        return graphene_django_optimizer.query(
+            get_teachers(info.context.user, request=info.context), info
+        )
 
     def resolve_timetable_groups(self, info, **kwargs):
         return graphene_django_optimizer.query(