django allauth 自定义注册表单分配不同的组

我的系统中有两种类型的用户，我想在注册时分配适当的组。参考使用 django-allauth 时如何自定义用户配置文件 https://stackoverflow.com/questions/12303478/how-to-customize-user-profile-when-using-django-allauth，我想我可以覆盖注册表单并执行以下操作：

class CustomSignupForm(forms.Form):
    login_widget = forms.TextInput(attrs={'type': 'email',
                                              'placeholder': _('email'),
                                              'autofocus': 'autofocus',
                                              'class': 'form-control'
                                      })

    email = forms.EmailField(label='Email', widget=login_widget)
    password = PasswordField(label='Password', widget=forms.PasswordInput(attrs={'class': 'form-control'}))
    password2 = PasswordField(label='Re-type Password', widget=forms.PasswordInput(attrs={'class': 'form-control'}))

    def save(self, request, user):
        role = request.GET.get('type')
        print(role)
        group = role or "group1"
        g = Group.objects.get(name=group)
        user.groups.add(g)
        user.save()

但我不断收到以下错误：

save() missing 1 required positional argument: 'user'

另外，我已将 allauth 配置为使用电子邮件登录。

感谢您的帮助。

注册是覆盖而不是保存的方法。

class LocalSignupForm(forms.Form):
    pass

    def signup(self, request, user):
        role = request.session.get('user_type')
        group = role or "Default"
        g = Group.objects.get(name=group)
        user.groups.add(g)
        user.save()

另外设置必须是

ACCOUNT_SIGNUP_FORM_CLASS = 'useraccount.forms.LocalSignupForm'