chore: moved notification sender

backend/api/serializers/group_serializer.py

@@ -1,7 +1,5 @@
-from api.models.assistant import Assistant
 from api.models.group import Group
 from api.models.student import Student
-from api.models.teacher import Teacher
 from api.permissions.role_permissions import (is_assistant, is_student,
                                               is_teacher)
 from api.serializers.project_serializer import ProjectSerializer
@@ -57,15 +55,6 @@ def validate(self, attrs):
         if "score" in attrs and attrs["score"] > group.project.max_score:
             raise ValidationError(gettext("group.errors.score_exceeds_max"))
 
-        if "score" in attrs and (group.score is None or attrs["score"] != group.score):
-            # Score is updated -> send notification
-            notification_create.send(
-                sender=Group,
-                type=NotificationType.SCORE_UPDATED,
-                queryset=list(group.students.all()),
-                arguments={"score": attrs["score"]},
-            )
-
         return attrs
 
 

backend/api/views/group_view.py

@@ -9,6 +9,7 @@
 from api.serializers.submission_serializer import SubmissionSerializer
 from django.utils.translation import gettext
 from drf_yasg.utils import swagger_auto_schema
+from notifications.signals import NotificationType, notification_create
 from rest_framework.decorators import action
 from rest_framework.mixins import (CreateModelMixin, DestroyModelMixin,
                                    RetrieveModelMixin, UpdateModelMixin)
@@ -28,6 +29,22 @@ class GroupViewSet(CreateModelMixin,
     serializer_class = GroupSerializer
     permission_classes = [IsAdminUser | GroupPermission]
 
+    def update(self, request, *args, **kwargs):
+        old_group = self.get_object()
+        response = super().update(request, *args, **kwargs)
+        if response.status_code == 200:
+            new_group = self.get_object()
+            if "score" in request.data and old_group.score != new_group.score:
+                # Partial updates end up in the update function as well
+                notification_create.send(
+                    sender=Group,
+                    type=NotificationType.SCORE_UPDATED,
+                    queryset=list(new_group.students.all()),
+                    arguments={"score": str(new_group.score)},
+                )
+
+        return response
+
     @action(detail=True, methods=["get"], permission_classes=[IsAdminUser | GroupStudentPermission])
     def students(self, request, **_):
         """Returns a list of students for the given group"""