使用Django rest框架API更新用户配置文件

Question

我想创建一个API，用户可以在其中更新他们的配置文件。在我的情况下，用户可以更新他/她的用户名和密码。要更改他/她的个人资料，API链接应为/api/change/usernameOfThatUser。当我在链接中使用不存在的用户名时，我仍然得到userProfileChange API页面，并且输入框未填充以前的数据。我该如何解决这个问题？

serializers.py

User = get_user_model() 

class UserProfileChangeSerializer(ModelSerializer): 
    username = CharField(required=False, allow_blank=True, initial="current username") 
    class Meta: 
     model = User 
     fields = [ 
      'username', 
      'password', 
     ] 

    def update(self, instance, validated_data): 
     instance.username = validated_data.get('username',instance.username) 
     print('instance of username',instance.username) 
     return instance 

views.py

class UserProfileChangeAPIView(UpdateAPIView): 
    serializer_class = UserProfileChangeSerializer 
    lookup_field = 'username' 

urls.py

url(r'^change/(?P<username>[\w-]+)$', UserProfileChangeAPIView.as_view(), name='changeProfile'), 

Answer 1

也许尝试做somethi ng像这样，而不是在你的views.py？

from rest_framework import generics, mixins, permissions 

User = get_user_model() 

class UserIsOwnerOrReadOnly(permissions.BasePermission): 
    def has_object_permission(self, request, view, obj): 
     if request.method in permissions.SAFE_METHODS: 
      return True 
     return obj.id == request.user.id 

class UserProfileChangeAPIView(generics.RetrieveAPIView, 
           mixins.DestroyModelMixin, 
           mixins.UpdateModelMixin): 
    permission_classes = (
     permissions.IsAuthenticated, 
     UserIsOwnerOrReadOnly, 
    ) 
    serializer_class = UserProfileChangeSerializer 
    parser_classes = (MultiPartParser, FormParser,) 

    def get_object(self): 
     username = self.kwargs["username"] 
     obj = get_object_or_404(User, username=username) 
     return obj 

    def delete(self, request, *args, **kwargs): 
     return self.destroy(request, *args, **kwargs) 

    def put(self, request, *args, **kwargs): 
     return self.update(request, *args, **kwargs) 

这会给你所有的现有数据进行基于URL传递的用户名的用户。如果用户名不存在，则会引发404错误。您也可以更新或删除该对象。