在django的登录表单中添加一个新字段以及用户名和密码

Question

我想要编辑django提供的登录表单，并且不想因为安全问题而构建新的表单。我已经看过像How to use another field for logging in with Django Allauth?这样的其他解决方案，这是一个很好的例子，但它根据手机号码分配电子邮件id。但是，我想添加另一个字段，该字段并不是专门用于身份验证，只是为了根据重定向完成的输入进行身份验证。我对我的方法以及是否可以这样做感到相当困惑。敬请指教。谢谢。

Answer 1

你可以在你的forms.py文件中这样做。

class UserLoginForm(forms.Form):
    username = forms.CharField(widget=forms.TextInput(attrs={'class':'form-control','placeholder':'Username'}))
    password = forms.CharField(widget=forms.PasswordInput(attrs={'class':'form-control','placeholder':'Password'}))
    yourfield = forms.CharField(widget=forms.TextInput(attrs={'class':'form-control','placeholder':'yourfield'}))
    def clean(self, *args, **kwargs):
        username = self.cleaned_data.get("username")
        password = self.cleaned_data.get("password")

        #user_qs = User.objects.filter(username=username)
        #if user_qs.count() == 1:
        #   user = user_qs.first()
        if username and password:
            user = authenticate(username=username, password=password)
            if not user:
                raise forms.ValidationError("This user does not exist")
            if not user.check_password(password):
                raise forms.ValidationError("Incorrect password")
            if not user.is_active:
                raise forms.ValidationError("This user is no longer active")
            return super(UserLoginForm, self).clean(*args, **kwargs)

Answer 2

如果我误解了你的问题，很抱歉，但这里是我如何为用户注册添加额外的字段，这看起来非常简单。为了详细起见，我已经包含了一些额外的相关方法：

../forms.py：

class CustomRegistrationForm(RegistrationForm):
    """
    Form for registering a new user account.

    Subclasses should feel free to add any additional validation they
    need, but should avoid defining a ``save()`` method -- the actual
    saving of collected user data is delegated to the active
    registration backend.

    """
    username = forms.RegexField(regex=r'^[\w.@+-]+$',
                                max_length=30,
                                label="Username",
                                error_messages={'invalid': "This value may contain only letters, numbers and @/./+/-/_ characters."})

    email = forms.EmailField(label="E-mail")
    password1 = forms.CharField(widget=forms.PasswordInput,
                                label="Password")
    password2 = forms.CharField(widget=forms.PasswordInput,
                                label="Password (again)")

    extra_field = forms.CharField([field options])


    def clean(self):

        if 'password1' in self.cleaned_data and 'password2' in self.cleaned_data:
            if self.cleaned_data['password1'] != self.cleaned_data['password2']:
                raise forms.ValidationError("The two password fields didn't match.")
        return self.cleaned_data

然后，只需将您的注册URL设置为使用适当的表单类：

../urls.py：

url(r'^accounts/register/$', RegistrationView.as_view(form_class=accounts.forms.CustomRegistrationForm), name='registration_register'),

这个字段不是您的标准模型的一部分吗，或者您的输入需要做一些额外的工作？您可以设置一个信号，以便在用户注册时产生一些额外的魔力：

from forms import CustomRegistrationForm
def user_created(sender, user, request, **kwargs):
    form = CustomRegistrationForm(request.POST)
    user_account = get_user_account(user)
    user_account.persona = form.data['persona_tier']
    user_account.save()

from registration.signals import user_registered
user_registered.connect(user_created)

仅供参考，我使用的是django- regardless redux后端，但这种方法应该会帮助你更接近。