尝试添加指向表单域标签的链接时，__init __ () 出现意外'initial'关键字参数

Question

当我尝试添加链接到django UserCreationForm字段的标签时，我得到错误:

__init__() got an unexpected keyword argument 'initial'.

我的代码是这样的:

#forms.py
class RegisterUserForm(UserCreationForm):
email = forms.EmailField(required=True, label='Адрес электронной почты')
check = forms.BooleanField()
def __init__(self):
super(RegisterUserForm, self).__init__()
self.fields['check'].label = 'Принимаю политику конфиденциальности' % reverse('user:privacy')
class Meta:
model = AdvUser
fields = ('username', 'email', 'password1', 'password2', 'check')

views.py如下:

#views.py 
class RegisterUserView(SuccessMessageMixin, CreateView):
model = AdvUser
template_name = 'users/register_user.html'
form_class = RegisterUserForm
success_url = reverse_lazy('articles:list_view')
success_message = 'Вы успешно зарегистрировались!'
def form_valid(self, form):
valid = super(RegisterUserView, self).form_valid(form)
username, password = form.cleaned_data.get('username'), form.cleaned_data.get('password1')
new_user = authenticate(username=username, password=password)
login(self.request, new_user)
return valid
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
# 5 тегов с наибольшим количеством публикаций
context['tags_list'] = Tag.objects.annotate(articles_quantiy=Count('taggit_taggeditem_items')).order_by(
'-articles_quantiy')[:10]
context['securities_types_list'] = StocksETFsBonds.objects.all()
return context

---

将*args和**kwargs添加到def __init__后，我得到了如下所示的回溯:

Request Method: GET
Request URL: http://127.0.0.1:8000/accounts/register/
Traceback (most recent call last):
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangourlsbase.py", line 71, in reverse
extra, resolver = resolver.namespace_dict[ns]
During handling of the above exception ('user'), another exception occurred:
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangocorehandlersexception.py", line 47, in inner
response = get_response(request)
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangocorehandlersbase.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangoviewsgenericbase.py", line 70, in view
return self.dispatch(request, *args, **kwargs)
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangoviewsgenericbase.py", line 98, in dispatch
return handler(request, *args, **kwargs)
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangoviewsgenericedit.py", line 168, in get
return super().get(request, *args, **kwargs)
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangoviewsgenericedit.py", line 133, in get
return self.render_to_response(self.get_context_data())
File "C:UsersuserDesktopdjangosandboxsecuritieswebsiteusersviews.py", line 139, in get_context_data
context = super().get_context_data(**kwargs)
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangoviewsgenericedit.py", line 66, in get_context_data
kwargs['form'] = self.get_form()
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangoviewsgenericedit.py", line 33, in get_form
return form_class(**self.get_form_kwargs())
File "C:UsersuserDesktopdjangosandboxsecuritieswebsiteusersforms.py", line 71, in __init__
self.fields['check'].label = 'Принимаю политику конфиденциальности' % reverse('user:privacy')
File "C:UsersuserDesktopdjangosandboxsecuritiesvenvlibsite-packagesdjangourlsbase.py", line 82, in reverse
raise NoReverseMatch("%s is not a registered namespace" % key)
Exception Type: NoReverseMatch at /accounts/register/
Exception Value: 'user' is not a registered namespace

• 如何解决这个问题?
• 是否有其他方法可以添加到标签或help_text的链接django表单字段?

Answer 1

这个错误是因为__init__现在不接受任何args或kwargs:

def __init__(self): # Not expecting anything

args和kwargs需要保留，所以只需将其更改为:

class RegisterUserForm(UserCreationForm):
...
def __init__(self, *args, **kwargs): # Add back args and kwargs
super(RegisterUserForm, self).__init__(*args, **kwargs) # And pass to parent

Answer 2

当我将def __init__更改为以下代码时，正确的链接出现在我的注册页面中:

def __init__(self, *args, **kwargs):
super(RegisterUserForm, self).__init__(*args, **kwargs)
self.fields['check'].label = mark_safe('Принимаю <a href=%s> политику конфиденциальности</a>' % reverse_lazy('users:privacy'))