AKPlan/templates/AKPlan/plan_wall.html

@@ -51,6 +51,8 @@
                     start: '{{ start | timezone:event.timezone | date:"Y-m-d H:i:s" }}',
                     end: '{{ end | timezone:event.timezone  | date:"Y-m-d H:i:s"}}',
                 },
+                slotMinTime: '{{ earliest_start_hour }}:00:00',
+                slotMaxTime: '{{ latest_end_hour }}:00:00',
                 eventDidMount: function(info) {
                     $(info.el).tooltip({title: info.event.extendedProps.description});
                 },

AKPlan/tests.py

 from django.test import TestCase
 
-from AKModel.tests import BasicViewTests
+from AKModel.tests.test_views import BasicViewTests
 
 
 class PlanViewTests(BasicViewTests, TestCase):

AKScheduling/api.py

@@ -55,7 +55,9 @@ class EventsView(LoginRequiredMixin, EventSlugMixin, ListView):
     model = AKSlot
 
     def get_queryset(self):
-        return super().get_queryset().select_related('ak').filter(event=self.event, room__isnull=False)
+        return super().get_queryset().select_related('ak').filter(
+            event=self.event, room__isnull=False, start__isnull=False
+        )
 
     def render_to_response(self, context, **response_kwargs):
         return JsonResponse(
@@ -165,7 +167,7 @@ class EventSerializer(serializers.ModelSerializer):
 
         # Updated room if needed (pk changed -- otherwise, no need for an additional database lookup)
         new_room_id = validated_data.get('room')["pk"]
-        if instance.room.pk != new_room_id:
+        if instance.room is None or instance.room.pk != new_room_id:
             instance.room = get_object_or_404(Room, pk=new_room_id)
 
         instance.save()