REST 框架放置数据但不更改它们

Question

我正在使用rest框架来序列化我的数据，并且我成功地创建了一个序列化器，如下所示，但是当我填写表格并发送它时，它发送但我的数据没有改变，甚至没有一个错误！并且空白字段保持空白不变！我该怎么办？

Serializer.py：

class UserProfileSignUpSerializer(serializers.ModelSerializer):
    verification_code = serializers.ReadOnlyField(read_only=True)

    class Meta:
        model = UserProfile
        fields = ['id', 'gender', 'birthday', 'country', 'city', 'street_address', 'state', 'about', 'social_links',
                  'location', 'avatar', 'verification_code']


class UserSignUpSerializer(serializers.ModelSerializer):
    user_profile = UserProfileSignUpSerializer()

    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'username', 'user_profile')

    def update(self, instance, validated_data):
        user_profile_data = validated_data.pop('user_profile')
        for attr, value in user_profile_data.items():
            setattr(instance, attr, value)
        for attr, value in validated_data.items():
            setattr(instance.user_profile, attr, value)
        # UserProfile.objects.create(user=instance, **user_profile_data)
        instance.save()
        instance.user_profile.save()
        return instance

Views.py：

class UserSignupDetail(generics.RetrieveUpdateAPIView):
    serializer_class = UserSignUpSerializer
    permission_classes = (permissions.IsAuthenticatedOrReadOnly, IsOwnerOrReadOnly,)

    def get_queryset(self):
        pk = self.kwargs['pk']
        signup = User.objects.filter(pk=pk)
        return signup

Permission.py：

此文件指定权限级别，因为只有所有者才能编辑对象。

class IsOwnerOrReadOnly(permissions.BasePermission):
    """
    Custom permission to only allow owners of an object to edit it.
    """

    def has_object_permission(self, request, view, obj):
        # Read permissions are allowed to any request,
        # so we'll always allow GET, HEAD or OPTIONS requests.


        return obj.username == request.user.username

我这里有一个模型，Profile，其中存在多个对象，并且与auth.User一一对应；和一个名为 Userprofile 的子类。

模型.py

class Profile(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    avatar = models.ImageField(blank=True, upload_to=get_image_path)
    street_address = models.CharField(max_length=100, blank=True)
    city = models.CharField(max_length=100, blank=True)
    state = models.CharField(max_length=100, blank=True)
    country = models.CharField(max_length=100, blank=True)
    persian_address = models.CharField(max_length=100, blank=True)
    about = models.TextField(max_length=100, blank=True)
    social_links = models.TextField(blank=True)
    update = models.DateTimeField(auto_now=True)
    timestamp = models.DateTimeField(auto_now_add=True)
    location = GeopositionField()


# User Profile
class UserProfile(Profile):
    user = models.OneToOneField(User, related_name='user_profile')
    gender = models.CharField(choices=sex, max_length=1)
    birthday = models.DateField(blank=True, null=True)
    phone_regex = RegexValidator(regex=r'^\+?1?\d{9,11}$', message="Phone number must be entered in the format: "
                                                                   "'9123456789'. Up to 15 digits allowed.")
    call_no = models.CharField(validators=[phone_regex], max_length=15, blank=False, default='9123456789')
    verification_code = models.CharField(default=generator(4), max_length=5, blank=False)
    is_verified = models.BooleanField(default=False)

Answer 1

您是否检查过是否尝试过使用“POST”。还要确保表单没有与旧数据一起缓存，我自己也遇到过这个问题。

Answer 2

我将我的 serializer.py 更改为以下内容，它可以正常工作：

class UserSignUpSerializer(serializers.ModelSerializer):
    user_profile = UserProfileSignUpSerializer()

    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'username', 'user_profile')

    def update(self, instance, validated_data):
        user_profile_data = validated_data.pop('user_profile')

        for attr, value in validated_data.items():
            setattr(instance, attr, value)

        instance.save()
        try:
            UserProfile.objects.get(user=instance)
            for attr, value in user_profile_data.items():
                setattr(instance.user_profile, attr, value)
        except ObjectDoesNotExist:
            UserProfile.objects.create(user=instance, **user_profile_data)
        instance.user_profile.save()
        return instance