DRF - nested serializer - django

Question

I have several models
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
gender = models.CharField(max_length=2)
name = models.CharField(max_length=200)
birthday = models.DateField(auto_now=False, auto_now_add=False)
weight = models.IntegerField(default=0)
heigth = models.IntegerField(default=0)
sign = models.CharField(max_length=200, choices=SIGNS_CHOICES, default='E')
orientation = models.CharField(max_length=200, choices=ORIENTATION_CHOICES, default='E')
bodytype = models.CharField(max_length=200, choices=BODYTYPE_CHOICES, default='E')
education = models.CharField(max_length=200, choices=EDUCATION_CHOICES, default='E')
religion = models.CharField(max_length=200, choices=RELIGION_CHOICES, default='E')
smoking = models.CharField(max_length=200, choices=SMOKING_CHOICES, default='E')
alcohol = models.CharField(max_length=200, choices=ALCOHOL_CHOICES, default='E')
kids = models.CharField(max_length=200, choices=KIDS_CHOICES, default='E')
pets = models.CharField(max_length=200, choices=KIDS_CHOICES, default='E')
location = models.CharField(max_length=100)
latitude = models.FloatField()
longtitude = models.FloatField()
class ProfilePic(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
profilePic = models.ImageField(upload_to='Images/', default='Images/None/No-img.jpg')
class ProfileFields(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
title = models.CharField(max_length=200)
text = models.TextField()
order = models.IntegerField(default=0)
and several serizlizers
class ProfilePicSerializer(ModelSerializer):
class Meta:
model = ProfilePic
fields = [
'profilePic',
'user',
]
class ProfileSerializer(ModelSerializer):
class Meta:
model = Profile
fields = '__all__'
class ProfileFieldsSerializer(ModelSerializer):
class Meta:
model = ProfileFields
fields = [
'user',
'title',
'text',
'order'
]
What I try to do is to create user serizlizer that will show profile, profilePic and profileFields
I do it like so
class UserSerializer(ModelSerializer):
profile = ProfileSerializer(many=False)
profilePic = ProfilePicSerializer(many=False)
profile_fields = ProfileFieldsSerializer(many=True)
class Meta:
model = User
fields = '__all__'
write_only_fields = ('password',)
read_only_fields = ('id',)
def create(self, validated_data):
user = User.objects.create(
username=validated_data['username'],
email=validated_data['email'],
)
user.set_password(validated_data['password'])
user.save()
return user
But I get error
Got AttributeError when attempting to get a value for field `profilePic` on serializer `UserSerializer`.The serializer field might be named incorrectly and not match any attribute or key on the `User` instance.Original exception text was: 'User' object has no attribute 'profilePic'.
Profile model adds to JSON, but profilePic and profileFields return error about not matching and attribute. What Am I doing wrong here ?

Answer 1

It is not recognizing profilePic on the user instance because it doesn't exist. If you try to do user.profilePic you'll get the same error.
You should be able to set the related_name on the ProfilePic model user ForeignKey so that user has a profilePic property and user.profilePic returns the user's profile pic.
class ProfilePic(models.Model):
user = models.OneToOneField(User, related_name="profilePic", on_delete=models.CASCADE)
...