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# accounts/models.py — custom user model
from django.contrib.auth.models import AbstractUser
from django.db import models

class CustomUser(AbstractUser):
    bio     = models.TextField(blank=True)
    website = models.URLField(blank=True)
    avatar  = models.ImageField(upload_to='avatars/', blank=True, null=True)

def __str__(self):
        return self.username

# mysite/settings.py
AUTH_USER_MODEL = 'accounts.CustomUser'

# accounts/forms.py — registration form
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth import get_user_model

User = get_user_model()

class RegisterForm(UserCreationForm):
    email = forms.EmailField(required=True)

class Meta(UserCreationForm.Meta):
        model  = User
        fields = ['username', 'email', 'password1', 'password2']

# accounts/views.py — registration view
from django.shortcuts import render, redirect
from django.contrib.auth import login
from .forms import RegisterForm

def register(request):
    if request.method == 'POST':
        form = RegisterForm(request.POST)
        if form.is_valid():
            user = form.save()
            login(request, user)
            return redirect('blog:post-list')
    else:
        form = RegisterForm()
    return render(request, 'registration/register.html', {'form': form})