[Django]-Django user profile

Conceptually, OneToOneField is similar to a ForeignKey with unique=True, but the “reverse” side of the relation will directly return a single object. This is the recommended way of extending User class.

class UserProfile(models.Model):  
    user = models.OneToOneField(User)
    ...

Current Django is 1.9 and here are some updates to the outdated accepted answer

1. use models.OneToOneField(User)
2. add related_name='profile'
3. use .__str__() and .format() for Python 3

like so

class UserProfile(models.Model):  
    user = models.OneToOneField(User, related_name='profile')
    location = models.CharField(max_length=140)  
    gender = models.CharField(max_length=140)  
    ...

    def __str__(self):
        return 'Profile of user: {}'.format(self.user.username)

Using related_name you can access a user’s profile easily, for example for request.user

request.user.profile.location
request.user.profile.gender

No need for additional lookups.

Django provides a way of storing additional information about users in a separate table (called user profile).

Starting with Django 1.5 you can replace the default User with your custom user object using a simple settings entry:

AUTH_USER_MODEL = 'myapp.MyUser'

For slightly more details, check this Django documentation entry.

There’s a solution I found here. Basically you just extend the default form UserCreationForm but keeping the same name. It works seamlessly with the way Django’s docs tell you to do UserProfiles.

Answer can be updated to add signal receiver which will create the profile if it does not exist and update if it is already there.

@receiver(post_save, sender=User)
def create_or_update_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)
    instance.profile.save()

This https://simpleisbetterthancomplex.com/tutorial/2016/11/23/how-to-add-user-profile-to-django-admin.html post also includes how to edit, list the custom profile in admin panel.

The current 2 top answers are outdated

If you reference User directly (for example, by referring to it in a foreign key), your code will not work in projects where the AUTH_USER_MODEL setting has been changed to a different user model. [..] Instead of referring to User directly [..] when you define a foreign key or many-to-many relations to the user model, you should specify the custom model using the AUTH_USER_MODEL setting.

from django.conf import settings
from django.db import models

class UserProfile(models.Model):
    user = models.OneToOneField(
        settings.AUTH_USER_MODEL,
        on_delete=models.CASCADE,
        related_name="userprofile",
    )

https://docs.djangoproject.com/en/3.2/topics/auth/customizing/#referencing-the-user-model

If you want to get user profile data from user objects.

from django.contrib.auth.models import User
request.user.profile