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[email protected] 在 2021年7月4日 星期日下午1:48:58 [UTC+8] 的信中寫道：
> Hello, I am using a custom auth backend and everything displays properly,
> except I cannot login with the credentials in my model. I have spent 5
> hours on this and cannot figure it out. Please help.
>
> views.py
>
> class MyLogin(LoginView):
> template_name = 'employees/login.html'
> form_class = LoginForm
>
>
> def form_valid(self, form):
> user = form.get_user()
> employee = Emp.objects.get(email=user)
> if employee.is_active:
> EmpBackend.authenticate(self.request, username=user,
> password=form.password)
>
> return HttpResponseRedirect(self.get_success_url())
>
> backends.py
>
> from django.contrib.auth.backends import ModelBackend
> from .models import Emp
>
>
> class EmpBackend(ModelBackend):
> def authenticate(self, request, username=None, password=None, **kwargs):
> try:
> user = Emp.objects.get(email=username)
> if user.check_password(password):
> return user
> except Emp.DoesNotExist:
> return None
>
> return None
>
> def get_user(self, user_id):
> try:
> return Emp.objects.get(pk=user_id)
> except Emp.DoesNotExist:
> return None
>
> models.py
>
> class Emp(AbstractBaseUser):
> first_name = models.CharField(max_length=100, default=None)
> last_name = models.CharField(max_length=100, default=None)
> email = models.EmailField(max_length=255, default=None, unique=True)
> username = models.CharField(max_length=100, default=None, null=True)
> phone = models.CharField(max_length=20, default=None, null=True,
> blank=True)
> password = models.CharField(max_length=100)
> 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)
> is_active = models.BooleanField(default=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='profile-pics/',
> default='profile-pics/default.png', null=True, blank=True)
> last_login = models.DateTimeField(default=None, null=True)
> is_staff = models.BooleanField(default=True, blank=True)
> date_joined = models.DateTimeField(auto_now_add=True, blank=True)
> is_superuser = models.BooleanField(default=False, 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 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
>
> def save(self, *args, **kwargs):
> super(Emp, self).save(*args, **kwargs)
>
> 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.image)
>
> self.last_login = timezone.utc
>
> def get_absolute_url(self):
> return reverse('employees:emp-detail', args=[self.id])
>
> objects = UserManager()
>
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