Fix LiveLessonEditView

apps/school/views.py

@@ -85,6 +85,9 @@ class LiveLessonEditView(TemplateView):
         if pk:
             self.object = get_object_or_404(LiveLesson, pk=pk)
         else:
+            try:
+                self.object = LiveLesson.objects.get(date=now().date())
+            except LiveLesson.DoesNotExist:
                 self.object = LiveLesson.objects.create()
         return super().get(request)