В настоящее время у меня есть пользовательский пользователь ниже, у которого есть индивидуальная модель с моделью под названием customer.
class UserManager(BaseUserManager):
def create_user(self, email, password=None,is_active=True, is_staff=False, is_admin=False):
if not email:
raise ValueError("Users must have email address")
user_obj = self.model(email = self.normalize_email(email))
if not password:
raise ValueError("Users must have a password")
user_obj.set_password(password)
user_obj.staff = is_staff
user_obj.admin = is_admin
user_obj.active = is_active
user_obj.save(using=self._db)
return user_obj
def create_staffuser(self,email,password=None):
user = self.create_user(email, password=password,is_staff=True)
return user
def create_superuser(self, email, password=None):
user = self.create_user(email, password=password, is_staff=True, is_admin=True)
return user
class User(AbstractBaseUser):
email = models.EmailField(max_length=255,unique=True)
active = models.BooleanField(default=True)
staff = models.BooleanField(default=False)
admin = models.BooleanField(default=False)
USERNAME_FIELD = 'email'
# email and password are required by default
REQUIRED_FIELDS = []
objects = UserManager()
def __str__(self):
return self.email
def get_full_name(self):
return self.email
def get_short_name(self):
return self.email
def has_perm(self, perm, obj=None):
return True
def has_module_perms(self, app_label):
return True
@property
def is_staff(self):
return self.staff
@property
def is_admin(self):
return self.admin
@property
def is_active(self):
return self.active
class Customer(models.Model):
GENDER = (
('Male', 'Male'),
('Female', 'Female'),
)
TITLE = (
('Mr', 'Mr'),
('Mrs', 'Mrs'),
('Miss', 'Miss'),
('Ms', 'Ms'),
('Dr', 'Dr'),
('Sir', 'Sir'),
('Madam', 'Madam'),
)
user = models.OneToOneField(User,on_delete=models.CASCADE)
title = models.CharField(max_length=200, null=True, choices=TITLE)
first_name = models.CharField(max_length=200, null=True)
middle_name = models.CharField(max_length=200, blank=True,default='')
last_name = models.CharField(max_length=200, null=True)
phone = models.CharField(max_length=200, null=True)
country = CountryField()
birth_year = models.CharField(max_length=4, null=True)
gender = models.CharField(max_length=200, null=True, choices=GENDER)
date_created = models.DateTimeField(auto_now=True, null=True)
profile_pic = models.ImageField(null=True, blank=True)
last_purchase = models.DateTimeField(blank=True, null=True)
def __str__(self):
return self.first_name
Однако мой вопрос в том, когда мне нужно сделать поле «многие ко многим» с другой моделью, например, как показано ниже.
class Order(models.Model):
STATUS = (
('Pending', 'Pending'),
('Out for delivery', 'Out for delivery'),
('Delivered', 'Delivered'),
)
customer = models.ForeignKey(Customer, null=True, on_delete = models.SET_NULL)
product = models.ForeignKey(Product, null=True, on_delete = models.SET_NULL)
date_created = models.DateTimeField(auto_now_add=True, null=True)
status = models.CharField(max_length=200, null=True, choices=STATUS)
note = models.CharField(max_length=1000, null=True)
b_address1 = models.CharField(max_length=1000, null=True)
b_address2 = models.CharField(max_length=1000, null=True, blank=True, default='')
b_city = models.CharField(max_length=1000, null=True)
b_county = models.CharField(max_length=1000, null=True)
b_post_code = models.CharField(max_length=1000, null=True)
def __str__(self):
return self.product.name
Как показано в модели заказа, что лучше иметь внешний ключ в качестве модели пользователя или модели клиента, когда необходимо использовать поле «многие ко многим»?