Django user model override

Question

I'm not advanced in Django and would like to know how and if it's possible to do it.

I need to override Django's user model, and change the fields "username" to "sr_usuario" and "password" to "sr_password", but I would like to continue using all Django's default authentication scheme and permissions. I want not only to change the description in the database or a label, I want to change the name of the field in the model, for when for example I needed to make a query, I would use User.objects.filter(sr_usuario="user_name") and everything would work usually.

It's possible? I couldn't find anything in the documentation or on forums I've searched.

Thank you very much in advance!

Answer 1

This is not possible, as all the django code is strictly coupled to the fields in the user.

You can, however, create a custom authentication backend and use a custom user model with the field names mentioned. But this would require a lot of coding.

Answer 2

Yes, if you want to override the User Model you need to add to your settings:

AUTH_USER_MODEL = "<THE PATH OF THE USER MODEL>"

And in that model extend it using the AbstractUser

Django Documentation here: https://docs.djangoproject.com/en/4.1/topics/auth/customizing/#using-a-custom-user-model-when-starting-a-project

Answer 3

    You should subclass AbstractBaseUser [doc], and set this custom user model as AUTH_USER_MODEL [doc] in your settings.
    This will instruct Django to use your custom user model everywhere, and retain all the built-in auth/permission behavior.
    For example:
    from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin
    from django.db import models
    
    class MyUser(AbstractBaseUser, PermissionsMixin):
        sr_usuario = models.CharField(max_length=100, unique=True)
        sr_password = models.CharField(max_length=100)
        # ...
    Then use this in settings:
    AUTH_USER_MODEL = 'my_app.MyUser'
    Note that migrations can be tricky here, so it is best to do this at the start of a new project.

class MyUser(AbstractUser):
    username = None
    sr_usuario = models.CharField(max_length=150, unique=True)

    USERNAME_FIELD = 'sr_usuario'