class Client(AbstractUser):
    phone = models.CharField(max_length=15,
                             validators=[RegexValidator(
                                 regex=r'^[0-9+]+$',
                                 message='Invalid phone number.', )])
    address = models.CharField(max_length=255)

    class Meta:
        verbose_name = 'Client'

    def __str__(self):
        return self.first_name

class ClientForm(UserCreationForm):
    password = forms.CharField(widget=(forms.PasswordInput()))

    class Meta:
        model = Client
        fields = ('username', 'first_name', 'last_name', 'email', 'phone', 'address')

class HomeView(CreateView):
    template_name = 'index.html'
    model = Client
    form = ClientForm
    fields = ('username', 'password', 'first_name', 'last_name', 'email', 'phone', 'address')
    success_url = reverse_lazy('index')