Field name user_username is not valid for model Profile

Question

Error Name: Field name

user_username

is not valid for model

Profile

I'm building my Edit Profile View.

Here is my

views.py

class ProfileEditAPIView(DestroyModelMixin, UpdateModelMixin, generics.RetrieveAPIView):

    serializer_class = ProfileEditSerializer



    def get_queryset(self):

        logged_in_user = User.objects.filter(username=self.request.user.username)

        return logged_in_user



    def get_object(self):

        queryset = self.get_queryset()

        obj = get_object_or_404(queryset)

        return obj.profile



    def put(self, request, *args, **kwargs):

        return self.update(request, *args, **kwargs)



    def delete(self, request, *args, **kwargs):

        return self.destroy(request, *args, **kwargs)

I can get user_id correctly but somehow I can't access to its username field

This is

serializers.py

class ProfileEditSerializer(serializers.ModelSerializer):

    class Meta:

        model = Profile

        fields = (

            'user_username', <<<

            'title',

            'gender',

            'birth',

            'height',

            'height_in_ft',

            'profile_img',

        )

models.py

class Profile(models.Model):

    user = models.OneToOneField(settings.AUTH_USER_MODEL)

    title = models.TextField(max_length=155, blank=True)

    gender = models.CharField(max_length=10, choices=GENDER_CHOICES, default='u') # Recommend Factor

    location = models.CharField(max_length=40, choices=LOCATION_CHOICES, default='ud') # Recommend Factor

    birth = models.DateField(default='1992-07-23', blank=True, null=True) # Recommend Factor

    height = models.CharField(max_length=5, default='undefined')

    height_in_ft = models.BooleanField(default=True)

    profile_img = models.ImageField(

        upload_to=upload_location,

        null=True,

        blank=True)

Why can't we access to user's username? And how can we solve this?

Thanks

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Answer 1

You can get the username from User model using this way.

class ProfileEditSerializer(serializers.ModelSerializer):
    username = serializers.CharField(read_only=True, source="user.username")

    class Meta:
        model = Profile
        fields = (
            'username',
            'title',
            . . . .
        )

Field name user_username is not valid for model Profile

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