Integrity Error: NOT NULL constraint failed: users_profile.user_id - django

Question

I want to implement update User Profile,in django rest framework.
I am getting the above mentioned error, no matter what I try and change in my code.
Below is the the code for my user serializers, user model and api views.
users/api/serializers.py:
from rest_framework import serializers
from ..models import User,Profile
class UserSerializer(serializers.ModelSerializer):
class Meta:
model = User
fields = ('username','first_name','last_name','phone','id')
class UserProfileSerializer(serializers.ModelSerializer):
user = UserSerializer(read_only=True)
class Meta:
model = Profile
fields = ('user', 'bio', 'image')
def update(self,instance,validated_data):
user_data = validated_data.pop('user',{})
user = instance.user
instance.bio = validated_data.get('bio',instance.bio)
instance.image = validated_data.get('image',instance.image)
instance.save()
return instance
Is there anything wrong in my serializer, cause I tried hardcoding and saving a particular user profile also by using for ex: instance.user.id = 21 and then saving it, but i get the same error
Is there anything wrong in my serializer, cause I tried hardcoding and saving a particular user profile also by using for ex: instance.user.id = 21 and then saving it, but i get the same error
users/models.py
from django.db import models
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager
from django.conf import settings
import os
import random
import string
class MyAccountManager(BaseUserManager):
def create_user(self,phone,username,first_name,last_name):
if not phone:
raise ValueError("Users must have a valid phone number")
if not username:
raise ValueError("Users must have a valid username")
if not first_name:
raise ValueError("Users must have a valid First Name")
if not last_name:
raise ValueError("Users must have a valid last name")
user = self.model(
phone=phone,
username=username,
first_name=first_name,
last_name=last_name
)
user.save(using=self._db)
return user
def create_superuser(self,username,phone,first_name,last_name,password = None):
user = self.create_user(
username=username,
phone=phone,
first_name=first_name,
last_name=last_name,
)
user.set_password(password)
user.is_admin=True
user.is_staff=True
user.is_superuser=True
user.save(using=self._db)
return user
class User(AbstractBaseUser):
phone = models.CharField(unique=True,max_length=20)
username = models.CharField(max_length=50,unique=True)
first_name = models.CharField(max_length=40)
last_name = models.CharField(max_length=30, blank=True)
date_joined = models.DateTimeField(verbose_name='date_joined', auto_now_add=True)
last_login = models.DateTimeField(verbose_name='last_login', auto_now_add=True)
is_admin = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
is_staff = models.BooleanField(default=False)
is_superuser = models.BooleanField(default=False)
otp = models.CharField(max_length=10,default='')
USERNAME_FIELD = 'phone'
REQUIRED_FIELDS = ['username','first_name','last_name']
objects = MyAccountManager()
def __str__(self):
return self.username
def has_perm(self,perm,obj = None):
return self.is_admin
def has_module_perms(self,app_label):
return True
class Profile(models.Model):
user = models.OneToOneField(User,on_delete = models.CASCADE)
bio = models.CharField(max_length=140)
image = models.ImageField(default='default.jpg',upload_to='profile_pics')
def __str__(self):
return f'{self.user.username}'
users/api/views.py
from rest_framework import status
from rest_framework.response import Response
from rest_framework import viewsets
from rest_framework.views import APIView
from .serializers import UserSerializer,UserProfileSerializer
from ..models import User,Profile
from django_filters.rest_framework import DjangoFilterBackend
class ProfileViewset(viewsets.ModelViewSet):
model = Profile
serializer_class = UserProfileSerializer
queryset = Profile.objects.all()
filter_backends = [DjangoFilterBackend]
filterset_fields = ['user']

Answer 1

Please add null=True if you want to insert null value.This is my suggestion
class Profile(models.Model):
user = models.OneToOneField(User,null=True,on_delete = models.CASCADE)
bio = models.CharField(max_length=140)
image = models.ImageField(default='default.jpg',upload_to='profile_pics')
def __str__(self):
return f'{self.user.username}'