text: from django.db import models
  from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, \
                                          PermissionsMixin
  
  
  class UserManager(BaseUserManager):
  
      def create_user(self, email, password=None, **extra_fields):
          """Creates and saves a new user"""
          if not email:
              raise ValueError('Users must have an email address"')
          user = self.model(email=self.normalize_email(email), **extra_fields)
          user.set_password(password)
          user.save(using=self._db)
  
          return user
  
      def create_superuser(self, email, password):
          """Creates and saves a new superuser"""
          user = self.create_user(email, password)
          user.is_staff = True
          user.is_superuser = True
          user.save(using=self._db)
  
          return user
  
  
  class User(AbstractBaseUser, PermissionsMixin):
      """Custom user model that supports email instead of username"""
      email = models.EmailField(max_length=355, unique=True)
      name = models.CharField(max_length=255)
      is_active = models.BooleanField(default=True)
      is_staff = models.BooleanField(default=True)
  
      objects = UserManager()
  
      USERNAME_FIELD = 'email'
  