I am Unable to extend the User model in Django - django

Question

Here I have changed the model and view name but I am unable to extend my user model why it gives the error like Registration() got an unexpected keyword argument 'myuser' please try to solve this error.
And this problem arises many time please give me the solution.
models.py
from django.db import models
from django.contrib.auth.models import User
# Create your models here.
class Registration(models.Model):
fname = models.CharField(max_length=30)
lname = models.CharField(max_length=30)
dob=models.DateField()
user = models.OneToOneField(User, on_delete=models.CASCADE, primary_key=True)
def __str__(self):
return self.fname
class Candidate(models.Model):
full_name = models.CharField(max_length=30)
position = models.CharField(max_length=30)
total_vote = models.IntegerField(default=0)
def __str__(self):
return "{} -- {}".format(self.full_name,self.position)
views.py
def register(request):
if request.method == "POST":
# Get the post parameters
username = request.POST['username']
email = request.POST['email']
fname = request.POST['fname']
lname = request.POST['lname']
dob = request.POST['dob']
pass1 = request.POST['pass1']
pass2 = request.POST['pass2']
# check for errorneous input
if User.objects.filter(username=username).exists():
messages.error(request, 'This Aadhaar is Already Used')
return redirect('home')
if User.objects.filter(email=email).exists():
messages.error(request, 'This Email is already Used')
return redirect('home')
if (pass1 != pass2):
messages.error(request, " Passwords do not match")
return redirect('home')
# Create the user
myuser = User.objects.create_user(username, email, pass1)
myuser.first_name = fname
myuser.last_name = lname
reg = Registration(dob=dob,myuser=myuser)
reg.save()
messages.success(request, "You are successfully registered")
return redirect('home')
else:
return HttpResponse("404 - Not found")
error:
TypeError at /register
Registration() got an unexpected keyword argument 'myuser'
Request Method: POST
Request URL: http://127.0.0.1:8000/register
Django Version: 3.1.7
Exception Type: TypeError
Exception Value:
Registration() got an unexpected keyword argument 'myuser'
Exception Location: C:\Python3.9\lib\site-packages\django\db\models\base.py, line 501, in __init__
Python Executable: C:\Python3.9\python.exe
Python Version: 3.9.2
Python Path:
['C:\\Users\\DeLL\\PycharmProjects\\E_VotigSystem\\ovs',
'C:\\Python3.9\\python39.zip',
'C:\\Python3.9\\DLLs',
'C:\\Python3.9\\lib',
'C:\\Python3.9',
'C:\\Python3.9\\lib\\site-packages']
Server time: Sun, 30 May 2021 12:30:11 +0000

Answer 1

Registration model has a user field, you give it a myuserargument.
reg = Registration(dob=dob, user=myuser)
should fix it. But then again, fname and lname are not nullable.
Also, please be more verbose about your fields.
dob? fname? lname?
date_of_birth, first_name, last_name
Also, please finish the official tutorial, it has most of these things covered.

Answer 2

You need to create a new Registration like Registration(dob=dob, user=myuser) because the field is named user in your Registration model - and you don’t need to call reg.save() the create step already persists the instance in your database - if you use Registration.objects.create(dob=dob, user=myuser)