[FIXED] Syntax confusion over posting to database

Issue

I am following a tutorial by Telusko. He switched to PostgreSQL but I decided to continue with SQLite. He showed this code to add a user to the database:

def register(request):

  if request.method == "POST":
    firstname= request.POST['firstname']
    lastname= request.POST['lastname']
    email= request.POST['email']
    phone= request.POST['phone']
    username= request.POST['username']
    password1= request.POST['password1']
    password2= request.POST['password2']
    dob= request.POST['dob']
    gender= request.POST['gender']

    user = User.objects.create_user(username=username, email=email, phone=phone, password=password1, dob=dob, gender=gender, firstname=firstname, lastname=lastname,)  
    user.save();
    print('user created')
    return redirect("/")
  else:
    return render(request, 'register.html')  ;

But I get this error when I submit :

Environment:

Request Method: POST
Request URL: http://127.0.0.1:8000/register

Django Version: 4.1.3
Python Version: 3.11.0
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'login.apps.LoginConfig']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']

Traceback (most recent call last):
  File "C:\Users\yuri\Desktop\naisuback\venv\Lib\site-packages\django\core\handlers\exception.py", line 55, in inner
    response = get_response(request)
  File "C:\Users\yuri\Desktop\naisuback\venv\Lib\site-packages\django\core\handlers\base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\yuri\Desktop\naisuback\login\views.py", line 30, in register
    user = User.objects.create_user(username=username, email=email, phone=phone, password=password1, dob=dob, gender=gender, firstname=firstname, lastname=lastname,)

Exception Type: AttributeError at /register
Exception Value: 'Manager' object has no attribute 'create_user'

I wanted I could enter information into my HTML form (which is configured properly) and it's sent to database using POST method, adding a new user. My database db.sqlite3 is opened automatically when I run server.

I have a table login_user which already has 2 users I added through the admin panel.

Solution

You must be using django's default ModelManager, which doesn't have the create_user method. You need to inherit from AbstractBaseUser class instead of models.Model in your User model and add objects = UserManager() to your model, like below:

from django.contrib.auth.models import AbstractBaseUser, UserManager

class User(AbstractBaseUser):
    ...
    objects =  UserManager()

Answered By - Divya Prakash