Django Custom login using email not working

Question

I am trying to log a user in via email in django, everything is working fine(code wise), no errors and functions execute in a right manner. However, when I perform a check in the template it always return false.

Here is my code:

authenticate_user.py

def authenticate(self, request, email=None, password=None):
    try:
      user = User.objects.get(email=email)
    except User.DoesNotExist:
      messages.add_message(request, messages.INFO, 'Email or Password is not correct.')
      print("User not found")
      return None
    else:
      user_password_is_valid = check_password(password, user.password)
      if user_password_is_valid:
        print("User found")
        return user
      else:
        messages.add_message(request, messages.INFO, 'Email or Password is not correct.')
        return None
    return None

And for the handle_login view:

def handle_login(request):
  context= {
    'title': 'Login'
  }
  if request.method == 'POST':
    email = request.POST['email']
    password = request.POST['password']
    user = authenticate(request, email=email, password=password)
    print('User is', user)
    # This prints user no problem
    if user is not None:
      login(request, user)
      # No errors up to this point
      return redirect(reverse('mainapp:homepage'))
    else:
      return redirect(reverse('mainapp:homepage'))

Now upon checking -> {% user.is_authenticated %} in the template.html it always return false.

Answer 1

Upon further checking, I realized that the problem was at:

def get_user(self, email):
    try:
      return User.objects.get(email=email)
    except User.DoesNotExist:
      return None

It should be:

def get_user(self, user_id):
    try:
      return User.objects.get(pk=user_id)
    except User.DoesNotExist:
      return None

However, I am not still sure how the behavior of get_user() work.