Create a separate user type - django

Question

I am working on an intranet web application which needs two types of users. Normal users that can be setup from django admin and specific type of users -
Employees.
I have the following model for Employee type user.
class Employee(models.Model):
emp_name = models.CharField(max_length=500)
slug = models.SlugField(unique=True, default='')
location = models.CharField(max_length=200)
email = models.EmailField()
experience = models.TextField(blank=True)
primary_skill = models.ManyToManyField(PrimarySkill)
secondary_skill = models.ManyToManyField(SecondarySkill)
I tried having a OneToOneField like this as per the official doc and
this article:
user = models.OneToOneField(User, blank=True, null=True, on_delete=models.CASCADE)
#receiver(post_save, sender=User)
def create_employee(sender, instance, created, **kwargs):
if created:
Employee.objects.create(user=instance)
#receiver(post_save, sender=User)
def save_employee(sender, instance, **kwargs):
instance.employee.save()
I realized that this is the opposite of what I want. Every time a User
is created from the admin, there was an entry created in the
app_employee table.
What I want is this:
Every time an Employee is created, I need a User created.
An Employee can be created using a separate signup form, say emp_signup
How do I approach this scenario?

Answer 1

I have achieved this using a custom user based on AbstractUser inspired by this article.
class CustomUser(AbstractUser):
pass
class Employee(CustomUser):
user = models.OneToOneField(settings.AUTH_USER_MODEL)
# other fields
In settings.py, I then add the following key:
AUTH_USER_MODEL = 'myapp.CustomUser'
And wherever I need to refer the User class, I use get_user_model(), which will substitute our custom user, in views and forms as follows:
views.py
from django.contrib.auth import get_user_model
def user_profile(request):
User = get_user_model()
user = get_object_or_404(User, username=request.user.username)
return render(request, 'user/user_profile.html', {
'site_user': user
})
forms.py
class SignUpForm(UserCreationForm):
class Meta:
model = get_user_model()
fields = ('username', 'email', 'password1', 'password2',)