alternative-backend-service/users/managers.py

from django.contrib.auth.models import BaseUserManager
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _
from django.core.validators import validate_email

class CustomUserManager(BaseUserManager):
    def valide_email(self, email):
        if not email:
            raise ValidationError(_('The Email field must be set'))
        try:
            validate_email(email)
        except ValidationError:
            raise ValidationError(_('Enter a valid email address.'))
        return self.normalize_email(email)
    
    def create_user(self, email, first_name, last_name, password=None, **extra_fields):
        email = self.valide_email(email)
        user = self.model(email=email, first_name=first_name, last_name=last_name, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_superuser(self, email, first_name, last_name, password=None, **extra_fields):
        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)
        extra_fields.setdefault('is_active', True)
        extra_fields.setdefault('isVerified', True)
        if extra_fields.get('is_staff') is not True:
            raise ValueError(_('Superuser must have is_staff=True.'))
        if extra_fields.get('is_superuser') is not True:
            raise ValueError(_('Superuser must have is_superuser=True.'))
        
        return self.create_user(email, first_name, last_name, password, **extra_fields)