[Django]-How to use update method in viewsets in Django Rest Framework and perform some task(like sending mail) along with it?

by

2👍

✅

Finally I found my solution by changing the method update to partial_update. Apparently update method updates all the field while in above case I am attempting the field called response_text in the Review model which are setting other fields to null if they could be. Also after doing that I had to change the request from PUT to PATCH in frontend. Also I had to do some other minor coding changes like removing supervisor and supervisee fields from read_only_fields from ResponseSerializer. Updated code for ResponseViewset is shown below:

class ResponseViewSet(viewsets.ModelViewSet):
    queryset = Review.objects.all()
    permission_classes = [
        permissions.IsAuthenticated,
        #permissions.AllowAny,
    ]
    serializer_class = ResponseSerializer

    def partial_update(self, request,*args, **kwargs):
        obj = self.get_object()
        serializer = self.serializer_class(obj, data=request.data, partial=True)
        if serializer.is_valid():
            serializer.save()
            mail_text = "Hi {},\n\nYou got a response for your 1:1 from {}.\n\nClick below to see the response:\n\n{}".format(
                serializer.data["supervisor_name"],
                serializer.data["supervisee_name"],
                get_product_link("UMS/reviewsForDR"),
            )
            try:
                if not settings.DEFAULT_EMAIL_RECIPIENTS:
                    settings.DEFAULT_EMAIL_RECIPIENTS.append(
                        # supervisor_email
                        serializer.data["supervisor_email"]
                    )

                send_mail(
                    subject="New Response Received",
                    message=mail_text,
                    from_email=settings.DEFAULT_FROM_EMAIL,
                    recipient_list=settings.DEFAULT_EMAIL_RECIPIENTS,
                    fail_silently=False,
                )
                settings.DEFAULT_EMAIL_RECIPIENTS = []
            except (SMTPRecipientsRefused, SMTPSenderRefused):
                LOGGER.exception("There was a problem submitting the form.")
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        else:
            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
👤whitebumblebee

Leave a comment