我一直在尝试让我的 Django 自定义后端工作，但它拒绝接受我的凭据，这些凭据在数据库中是正确的（我已经验证了这一点）。它只是一直说电子邮件和密码不正确。
我迷路了，不知道从这里到哪里去。在这一点上我真的需要帮助。
意见.PY
class MyLogin(LoginView):
template_name = 'employees/login.html'
success_url = 'employees:emp-home'
authentication_form = LoginForm
def get_success_url(self):
return super().get_success_url()
def form_valid(self, form):
user = self.request.POST['username']
password = self.request.POST['password']
authenticate(EmpBackend, self.request, user, password)
return HttpResponseRedirect(self.get_success_url())
模型.PY
class EmpUserManager(BaseUserManager):
def create_user(self, email, password=None):
if not email:
raise ValueError("Users must have an email address")
user = self.model(email=self.normalize_email(email))
user.set_password(password)
user.save()
return user
def create_staffuser(self, email, password):
"""
Creates and saves a staff user with the given email and password.
"""
user = self.create_user(
email,
password=password,
)
user.staff = True
user.save(using=self._db)
return user
def create_superuser(self, email, password):
user = self.create_user(email, password=password)
user.staff = True
user.save()
return user
class Emp(AbstractBaseUser):
user = models.OneToOneField(User, on_delete=models.CASCADE)
email = models.CharField(max_length=100, default=None, unique=True)
first_name = models.CharField(max_length=100, default=None, null=True)
last_name = models.CharField(max_length=100, default=None, null=True)
username = models.CharField(max_length=100, default=None, null=True)
password = models.CharField(max_length=100, default=None)
phone = models.CharField(max_length=20, default=None, null=True, blank=True)
address1 = models.CharField(max_length=100, default=None, null=True, blank=True)
address2 = models.CharField(max_length=100, default=None, null=True, blank=True)
city = models.CharField(max_length=100, default=None, null=True, blank=True)
state = models.CharField(max_length=100, default=None, null=True, blank=True)
zip = models.CharField(max_length=10, default=None, null=True, blank=True)
position = models.CharField(max_length=50, default=None)
date_hired = models.DateTimeField(auto_now_add=True)
date_updated = models.DateTimeField(auto_now_add=True)
date_terminated = models.DateTimeField(default=None, null=True, blank=True)
status = models.SmallIntegerField(default=0)
emp_is_salary = models.BooleanField(default=False)
emp_pto_rate = models.DecimalField(max_digits=8, decimal_places=4, default=0.0)
emp_user_level = models.SmallIntegerField(default=1)
emerg_contact1 = models.CharField(max_length=100, default=None, null=True, blank=True)
emerg_contact1_phone = models.CharField(max_length=20, default=None, null=True, blank=True)
emerg_contact1_address = models.CharField(max_length=200, default=None, null=True, blank=True)
emerg_contact1_city_st = models.CharField(max_length=200, default=None, null=True, blank=True)
emerg_contact2 = models.CharField(max_length=100, default=None, null=True, blank=True)
emerg_contact2_phone = models.CharField(max_length=20, default=None, null=True, blank=True)
emerg_contact2_address = models.CharField(max_length=200, default=None, null=True, blank=True)
emerg_contact2_city_st = models.CharField(max_length=200, default=None, null=True, blank=True)
emp_note = models.TextField(default=None, null=True, blank=True)
emp_hourly_rate = models.DecimalField(max_digits=8, decimal_places=4, default=0.0)
emp_net_pto = models.DecimalField(max_digits=8, decimal_places=4, default=0.0)
emp_pto_prev = models.DecimalField(max_digits=8, decimal_places=4, default=0.0)
emp_image = models.ImageField(upload_to='media/employees/profile-pics/',
default='media/employees/profile-pics/default.png', null=True, blank=True)
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = []
def get_full_name(self):
return f'{self.first_name} {self.last_name}'
def get_email(self):
return self.email
def __str__(self):
return self.email
def save(self, *args, **kwargs):
super(Emp, self).save(*args, **kwargs)
self.username = self.email
img = Image.open(self.emp_image.path)
if img.height > 300 or img.width > 300:
output_size = (300, 300)
img.thumbnail(output_size)
img.save(self.emp_image.path)
def get_user_permissions(self, obj=None):
return True
def get_absolute_url(self):
return reverse('employees:emp-detail', args=[self.id])
objects = UserManager()
后端.PY
from django.contrib.auth import get_user_model
from django.contrib.auth.backends import ModelBackend
from django.contrib.auth.models import User
from .models import Emp
from .views import *
User = get_user_model()
class EmpBackend(ModelBackend):
supports_object_permissions = True
supports_anonymous_user = False
supports_inactive_user = False
def authenticate(self, email=None, password=None, **kwargs):
username = kwargs.get('username')
password = kwargs.get('password')
if username is None or password is None:
return
try:
user = User.objects.get(email=username)
if user.check_password(password) and self.user_can_authenticate(user):
return user
except User.DoesNotExist:
return None
return None
def user_can_authenticate(self, user):
is_active = getattr(user, 'is_active', None)
return is_active or is_active is None
def get_user(self, user_id):
try:
return Emp.objects.get(pk=user_id)
except Emp.DoesNotExist:
return None
def has_perm(self, perm, obj=None):
return True
def has_module_perms(self, app_label):
return True
设置.py
# Login model override
AUTH_USER_MODEL = 'auth.User'
# AUTH_PROFILE_MODEL = 'employess.Emp'
LOGIN_URL = 'employees:login'
LOGIN_REDIRECT_URL = 'employees:emp-home'
AUTHENTICATION_BACKENDS = [
'django.contrib.auth.backends.ModelBackend',
'employees.backends.EmpBackend',
]