Extending User Model for Different User Types

Based on your requirement to have two different user types (A and B) with specific profile pages, you can implement this using Django's user model extension capabilities. Since both user types inherit from the User model, you have a few approaches to consider.

Option 1: Using Profile Models with OneToOneField

You can create separate profile models for each user type:

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from django.contrib.auth.models import User
from django.db import models

class UserTypeA(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    # Type A specific fields
    a_specific_field = models.CharField(max_length=100)
    
class UserTypeB(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    # Type B specific fields
    b_specific_field = models.CharField(max_length=100)

Determining User Type in Views

In your view that handles the profile page, you can check which type the user belongs to:

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from django.shortcuts import render, redirect

def profile_view(request):
    user = request.user
    
    # Check if user is of type A
    try:
        user_a = user.usertypea
        return render(request, 'profiles/type_a_profile.html', {'profile': user_a})
    except UserTypeA.DoesNotExist:
        pass
        
    # Check if user is of type B
    try:
        user_b = user.usertypeb
        return render(request, 'profiles/type_b_profile.html', {'profile': user_b})
    except UserTypeB.DoesNotExist:
        # Handle case where user doesn't have either profile
        return render(request, 'profiles/generic_profile.html')

Creating Profiles Automatically

Since profile models aren't automatically created when a user is created, you can use signals to create the appropriate profile:

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from django.db.models.signals import post_save
from django.dispatch import receiver

@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        # Logic to determine which type of profile to create
        if some_condition:  # Define your condition to identify user type
            UserTypeA.objects.create(user=instance)
        else:
            UserTypeB.objects.create(user=instance)

URL Configuration

Set up your URLs to direct to the appropriate view:

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from django.urls import path
from . import views

urlpatterns = [
    path('profile/', views.profile_view, name='profile'),
]

This approach allows you to maintain a single User model while providing different profile experiences based on user type. The system will automatically detect which type of user is accessing their profile and display the appropriate page.