我的个人资料对象在用户序列化程序中没有被序列化。

我正在使用Django rest auth对我的用户进行身份验证，这一切运行得很好。我的模型设置是，我有用于身份验证的自定义用户模型，还有一个通过信号创建的配置文件模型。

我希望当在其URL中获取用户时，该用户的配置文件也被调用为用户对象。

我的models.py（我没有包括某些模型，如用户管理器、技能等，因为我觉得它们不相关）

class User(AbstractBaseUser, PermissionsMixin):
    username = None
    email = models.EmailField(max_length=254, unique=True)
    fullname = models.CharField(max_length=250)
    is_staff = models.BooleanField(default=False)
    is_superuser = models.BooleanField(default=False)
    is_active = models.BooleanField(default=True)
    last_login = models.DateTimeField(null=True, blank=True)
    date_joined = models.DateTimeField(auto_now_add=True)
    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['fullname']
    objects = UserManager()
class Profile(models.Model):
    '''
    Note:
    profile photo is expecting photos link gotten from cloudnairy from the frontend
    - The height is calculated in feets and inches
    - Need to sort out location (lives in)
    - Need to add an age function
    - Need to add achievemnet as a foreign field 
    - Need to add education also as a foreign field
    - Add follow functionality
    '''
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    date_of_birth = models.DateField(blank=True, verbose_name="DOB", null=True)
    bio = models.TextField(max_length=500, blank=True, null=True)
    profile_photo = models.CharField(blank=True, max_length=300, null=True)
    skills = models.ManyToManyField(Skill)
    sex = models.CharField(max_length=1, choices=SEX, blank=True, null=True)
    type_of_body = models.CharField(max_length=8, choices=BODYTYPE, blank=True, null=True)
    feet = models.PositiveIntegerField(blank=True, null=True)
    inches = models.PositiveIntegerField(blank=True, null=True)
    lives_in = models.CharField(max_length=50, blank=True, null=True)
    updated_on = models.DateTimeField(auto_now_add=True)

serializers.py代码

class ProfileSerializer(serializers.ModelSerializer):
    class Meta:
        model = Profile
        fields = "__all__"
        read_only_fields = ('pk',)
class CustomUserDetailsSerializer(serializers.ModelSerializer):
    profile = ProfileSerializer(read_only=True)
    class Meta:
        model = User
        fields = ('pk', 'email', 'fullname', 'profile')
        read_only_fields = ('email', 'fullname', 'profile')

view.py

class ListUsersView(APIView):
    permission_classes = [AllowAny]
    def get(self, request):
        user = User.objects.all()
        serializer = CustomUserDetailsSerializer(user, many=True)
        return Response(serializer.data)

urls.py

url(r'^list-users/$', ListUsersView.as_view(), name='list-users'),

我得到的JSON响应

[

我如何使配置文件在响应中显示出来？