Extend the  AbstractBaseUser  model and specify all of the fields that you require. Configure Django to use this model.

Extend the  AbstractUser  model and specify all the fields that you require. Configure Django to use this model.

Do not extend one of the abstract  User  models and configure Django to use the default  User  model.

Extend the  AbstractUser  model without specifying any fields. Configure Django to use this model.

When you first create the project.

After you configure a custom  User  model

It doesn't matter when you run the migrations.

def login_page(request):
    form = forms.LoginForm()
    if request.method == 'POST':
        form = forms.LoginForm(request.POST)
        if form.is_valid():
            user = authenticate(form.cleaned_data['username'], form.cleaned_data['password'])
            if user is not None:
                login(request, user)
    return render(request, 'authentication/login.html', context={'form': form})

def login_page(request):
    form = forms.LoginForm()
    if request.method == 'POST':
        form = forms.LoginForm(request.POST)
        if form.is_valid():
            user = login(form.cleaned_data['username'], form.cleaned_data['password'])
            if user is not None:
                authenticate(request, user)
    return render(request, 'authentication/login.html', context={'form': form})

def login_page(request):
    form = forms.LoginForm()
    if request.method == 'POST':
        form = forms.LoginForm(request.POST)
        if form.is_valid():
            authenticate(form.cleaned_data['username'], form.cleaned_data['password'])
    return render(request, 'authentication/login.html', context={'form': form})

def login_page(request):
    form = forms.LoginForm()
    if request.method == 'POST':
        form = forms.LoginForm(request.POST)
        if form.is_valid():
            user = authenticate(form.cleaned_data['username'], form.cleaned_data['password'])
            if not user:
                login()
    return render(request, 'authentication/login.html', context={'form': form})