#форма для регистрации
class RegistrationForm(forms.Form):
    username = forms.CharField(min_length=5, label='Логин:')
    password = forms.CharField(min_length=8, widget=forms.PasswordInput, label='Пароль:')
    password2 = forms.CharField(min_length=8, widget=forms.PasswordInput, label='Повторите ввод:')
    email = forms.EmailField(label='Email:')
    first_name = forms.CharField(max_length=30, label='Введите имя:')
    last_name = forms.CharField(max_length=30, label='Введите фамилию:')

    def clean_username(self):
        username = self.cleaned_data.get('username')
        try:
            user = User.objects.get(username=username)
            raise forms.ValidationError('Логин уже занят')
        except User.DoesNotExist:
            return username

    def clean_password2(self):
        pass1 = self.cleaned_data['password']
        pass2 = self.cleaned_data['password2']
        if pass1 != pass2:
            raise forms.ValidationError('Пароли не совпадают, введите одинакоые пароли')

    def save(self):
        user = User()
        data = self.cleaned_data
        user.username = data.get('username')
        user.password = make_password(data.get('password'))
        user.email = data.get('email')
        user.first_name = data.get('first_name')
        user.last_name = data.get('last_name')
        user.is_active = True
        user.is_superuser = False
        user.save()
        return authenticate(username=user.username, password=user.password)