Django Authenticate Backends with Email - django

Question

I want to login with email not username like this, please help
class loginUser(View):
def get(self, request):
lF = loginForm
return render(request, 'UserMember/login.html', {'lF': lF})
def post(self, request):
username = request.POST['username']
password = request.POST['password']
user = authenticate(request, username=username, password=password)
if user is not None:
login(request, user)
return render(request, 'UserMember/private.html')
else:
return HttpResponse('login fail')

Answer 1

First thing is to create a default email field.
# models.py
class CustomUser(AbstractUser):
email = models.EmailField(_('email address'), unique=True)
# settings.py (remember to migrate)
AUTH_USER_MODEL = 'accounts.CustomUser' # new
Next, create your custom email backend:
# backends.py (in-app)
class EmailBackend(ModelBackend):
def authenticate(self, request, username=None, password=None, **kwargs):
try:
user = UserModel.objects.get(
Q(username__iexact=username) | Q(email__iexact=username))
except UserModel.DoesNotExist:
UserModel().set_password(password)
except MultipleObjectsReturned:
return User.objects.filter(email=username).order_by('id').first()
else:
if user.check_password(password) and self.user_can_authenticate(user):
return user
def get_user(self, user_id):
try:
user = UserModel.objects.get(pk=user_id)
except UserModel.DoesNotExist:
return None
return user if self.user_can_authenticate(user) else None
# settings.py (migrate again)
AUTH_USER_MODEL = 'accounts.CustomUser'
AUTHENTICATION_BACKENDS = ['accounts.backends.EmailBackend'] # new
If you plan on using Django's default register/login forms, do:
# form.py
from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
from django.contrib.auth import get_user_model
from django import forms
class RegisterForm(UserCreationForm):
class Meta:
model = get_user_model()
fields = ('email', 'username', 'password1', 'password2')
class LoginForm(AuthenticationForm):
username = forms.CharField(label='Email / Username')
And then it's only the views and URLs to handle.
Ref

Answer 2

you need to work with allAuth
Follow this Link
hope it will be helpful.