Fix typos

aleksis/apps/alsijil/schema/__init__.py

@@ -52,7 +52,7 @@ class Query(graphene.ObjectType):
                 )
             )
             or (
-                obj_type == "GROUPS"
+                obj_type == "GROUP"
                 and not info.context.user.has_perm(
                     "alsijil.view_documentations_for_group_rule", Group.objects.get(id=obj_id)
                 )
@@ -64,7 +64,7 @@ class Query(graphene.ObjectType):
                 )
             )
         ):
-            raise PermissionsDenied()
+            raise PermissionDenied()
 
         return Documentation.get_for_coursebook(
             obj_type, obj_id, datetime_start, datetime_end, info.context