views.py 文件源码

def create(self, request, *args, **kwargs):
        try:
            return super().create(request, *args, **kwargs)
        except UploadDuplicateError as e:
            dup = Image.objects.get(pk=e.instance.hash)
            # this usage of parse_duration is safe, because we already
            # validated the data (exception is thrown by the Model class, so
            # the validator passed).
            if 'expiration' in request.data:
                dup.expiration = parse_duration(request.data['expiration'])
            dup.save()

            serializer = self.get_serializer(dup)
            headers = self.get_success_headers(serializer.data)
            return Response(serializer.data, status=status.HTTP_201_CREATED,
                            headers=headers)