fix(checkin): ordering of table

shiftregister/team/views.py

@@ -284,7 +284,6 @@ class RoomShiftList(ShiftList):
 
 
 class CheckinList(LoginRequiredMixin, ListView):
-    model = Shift
     paginate_by = 30
     template_name = "checkin_list.html"
     title = "Ankommende Helfer*innen"
@@ -294,6 +293,7 @@ class CheckinList(LoginRequiredMixin, ListView):
             ShiftRegistration.objects.select_related("helper", "shift")
             .prefetch_related("shift__event__calendar")
             .filter(shift__deleted=False, state=ShiftRegistration.RegState.REGISTERED)
+            .order_by("shift__start_at", "shift__room__name")
         )
 
     def get_context_data(self, **kwargs):
@@ -304,9 +304,6 @@ class CheckinList(LoginRequiredMixin, ListView):
         context["title"] = self.title
         return context
 
-    def get_ordering(self):
-        return ("start_at", "room__name")
-
 
 @login_required
 def checkin(request, pk):