カスタムユーザーモデル

from django.db import models
from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin, BaseUserManager


class UserManager(BaseUserManager):
    def create_user(self, email, password=None, **extra_fields):
        if not email:
            raise ValueError('メールアドレスは必須です')

        email = self.normalize_email(email)
        email = email.lower()
        user = self.model(email=email, **extra_fields)
        user.set_password(password)
        user.save()

        return user

    def create_superuser(self, email, password=None, **extra_fields):
        user = self.create_user(email, password, **extra_fields)
        user.is_superuser = True
        user.is_staff = True
        user.save()

        return user


class UserAccount(AbstractBaseUser, PermissionsMixin):
    email = models.EmailField("メールアドレス", max_length=255, unique=True)
    name = models.CharField("名前", max_length=255)

    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)

    objects = UserManager()

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['name']

    def __str__(self):
        return self.email