上传图片-Django rest框架

Question

我有两个User和EcoUser模型，它们的关系为1比1(对于这个例子，我减少了表中的字段(：

class User(AbstractUser):
picture_url = models.ImageField(upload_to='logos/', blank=True)
class EcoUser(models.Model):
user = models.OneToOneField(User, related_name='eco_user')
document = models.CharField(max_length=45, blank=True)
def __str__(self):
return str(self.user)

在其中，我使用NestedSerializer能够在一个post或put中创建和更新两个表的数据。我这样做是因为在寄存器中我不保留图像，我对此没有问题：

这是序列化程序:

class EcoUserSerializer(serializers.ModelSerializer):
user = UserSerializer(required=True)
class Meta:
model = EcoUser
fields = '__all__'
def update(self, instance, validated_data):
instance.document = validated_data.get('document', instance.document)
instance.save()
user_data = validated_data.pop('user')
user = instance.user
user.picture_url = user_data.get('picture_url', user.picture_url)
user.save()
return instance

并且在我的视图集中：

class EcoUserViewSet(viewsets.ModelViewSet):
serializer_class = EcoUserSerializer
queryset = EcoUser.objects.all()
pagination_class = None
parser_classes = (MultiPartParser,)
@transaction.atomic
def update(self, request, *args, **kwargs):
with transaction.atomic():
try:
instance = self.get_object()
instance.id = kwargs.get('pk')
serializer = EcoUserSerializer(instance=instance, data=request.data)
print(serializer)
if serializer.is_valid(raise_exception=True):
self.perform_update(serializer)
return Response({"status": True, "results": "Datos actualizados correctamente"},
status=status.HTTP_201_CREATED)
except ValidationError as err:
return Response({"status": False, "error_description": err.detail}, status=status.HTTP_400_BAD_REQUEST)

这一直正常工作，直到我添加了ImageField字段，它没有更新我的数据，我得到了一个400错误的请求错误。这是我通过axios发送给他的VUEJS：

const bodyFormData = new FormData();
bodyFormData.append('user.picture_url', this.params.user.picture_url.name);
bodyFormData.append('document', this.params.document);
this.axios.put(`/users/${this.params.id}/`, bodyFormData, { headers: { 'Content-Type': 'multipart/form-data' } })
.then((response) => {
this.isSending = false;
this.$snackbar.open(response.data.results);
});

如果在apppend作为字段名中放入user.picture_url，那没关系？因为它在用户对象内部，然后我已经访问了picture_url以便能够更新它。

Answer 1

邮递员和我的探测器意识到了错误：只是django表的用户名字段是强制性的：

const bodyFormData = new FormData();
bodyFormData.append('user.picture_url', this.params.user.picture_url.name);
bodyFormData.append('document', this.params.document);
bodyFormData.append('user.username', this.params.username);

它创造了奇迹：D