Django DRF更新用户 [英] Django DRF Update User
问题描述
我正在尝试使用Django-Rest-Framework(DRF)创建api来欺骗用户。我已经设法创建和读取用户,但是由于某种原因,更新将无法进行。它似乎是在尝试创建一个用户而不是对其进行更新,因为它会以用户名已存在错误消息作为响应。当我尝试传递数据库中尚未存在的电子邮件时,它只会创建一个新用户。有人知道为什么会这样吗?
Im trying to create an api using the Django-Rest-Framework (DRF) to CRUD a User. I have managed to create and read a user, but for some reason update will not work. It seems to be that it is trying to create a User rather than update it as it responds with a 'username already exists' error message. When I try passing an email that isn't already in the database it just creates a new user. Does anyone know why this is happening?
这是我的用户序列化程序:
Here is my User Serializer:
class UserSerializer(FriendlyErrorMessagesMixin, serializers.ModelSerializer):
password = serializers.CharField(
max_length=128,
min_length=8,
write_only=True
)
class Meta:
model = User
fields = ('username',
'email',
'password',
'name',
'house_number',
'address_line_one',
'address_line_two',
'address_line_three',
'city',
'postcode',
'phone_number')
read_only_fields = ('date_created', 'date_modified', 'username')
def update(self, instance, validated_data):
password = validated_data.pop('password', None)
for (key, value) in validated_data.items():
setattr(instance, key, value)
if password is not None:
instance.set_password(password)
instance.save()
return instance
这是我的观点:
class UserRetrieveUpdateAPIView(RetrieveUpdateAPIView):
permission_classes = (IsAuthenticated,)
serializer_class = UserSerializer
def retrieve(self, request, *args, **kwargs):
serializer = self.serializer_class(request.user)
return Response(serializer.data, status=status.HTTP_200_OK)
def update(self, request, *args, **kwargs):
serializer = self.serializer_class(data=request.data, partial=True)
serializer.is_valid(raise_exception=True)
serializer.save()
return Response(serializer.data, status=status.HTTP_200_OK)
推荐答案
在视图中,您应该传递 Serializer
一个实例作为第一个参数进行更新,否则将创建一个新对象。
In the view, you should pass the Serializer
an instance to update as the first argument, otherwise a new object will be created.
要更新经过身份验证的用户,您会做到:
To update the authenticated user, you would do:
def update(self, request, *args, **kwargs):
serializer = self.serializer_class(request.user, data=request.data, partial=True)
serializer.is_valid(raise_exception=True)
serializer.save()
return Response(serializer.data, status=status.HTTP_200_OK)
通常,您可能要使用或覆盖 get_object
方法(来自 GenericAPIView
)来检索正确的实例;而不是重新实现检索
和 update
。
In general, you may want to use or override the get_object
method (from GenericAPIView
) to retrieve the correct instance ; instead of re-implementing both retrieve
and update
.
这篇关于Django DRF更新用户的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!