表单错误 - __init __（）得到了一个意外的关键字参数＆＃39;前缀＆＃39;

时间：2016-01-21 14:27:32

标签： django forms django-models django-forms

我在一个中有2个表单，我添加了前缀以在视图中将其分开。但是我收到错误： __ init __（）得到了一个意外的关键字参数＆＃39;前缀＆＃39;

我在堆栈上阅读有关前缀和其他问题的文档，但这对我没有帮助。

我的view.py： 

@user_passes_test(lambda u: u.is_staff, login_url='/account/login/')
def client_create(request):
    dict = {}
    dict['title'] = 'New client'

    if request.method == 'POST':
        form_user = ClientUserCreateForm(request.POST, prefix="test1")
        form_client = ClientCreateForm(request.POST, prefix="test2")
        return HttpResponse(request.POST['first_name'])
        # if form_user.is_valid() and form_client.is_valid():
        #     print(request.POST)
    else:
        dict['form_user'] = ClientUserCreateForm(prefix="test1")
        dict['form_client'] = ClientCreateForm(prefix="test2")
        return render(request, 'panel/client/create.html', dict)

我有两个表单，他们有init，当我从表单中删除它然后前缀工作正确。

我的forms.py 

class ClientUserCreateForm(forms.ModelForm):
    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'email')

    def __init__(self):
        super(ClientUserCreateForm, self).__init__()
        self.fields['first_name'].widget.attrs.update({
            'type': 'text',
            'class': 'form-control',
            'id': 'input-text',
        })
        self.fields['last_name'].widget.attrs.update({
            'type': 'text',
            'class': 'form-control',
            'id': 'input-text',
        })
        self.fields['email'].widget.attrs.update({
            'type': 'text',
            'class': 'form-control',
            'id': 'input-text',
        })


class ClientCreateForm(forms.ModelForm):
    country = forms.CharField(max_length=2, widget=forms.Select(
        choices=CountriesShortcut.objects.all().values_list('code', 'name').order_by('id')
    ))
    forwarding_country = forms.CharField(max_length=2, widget=forms.Select(
        choices=CountriesShortcut.objects.all().values_list('code', 'name').order_by('id')
    ))

    class Meta:
        model = Client
        fields = ('name', 'vat', 'address', 'zip_code', 'city', 'country', 'forwarding_address',
                  'forwarding_zip_code', 'forwarding_city', 'forwarding_country', 'phone',
                  'mailing_email', 'regon')

    def __init__(self):
       super(ClientCreateForm, self).__init__()
        self.fields['name'].widget.attrs.update({
            'type': 'text',
            'class': 'form-control',
            'id': 'input-text',
        })
        self.fields['vat'].widget.attrs.update({
            'type': 'text',
            'class': 'form-control',
            'id': 'input-text',
        })
        (....)
        self.fields['regon'].widget.attrs.update({
            'type': 'text',
            'class': 'form-control',
            'id': 'input-text',
        })

回溯： 

Environment:

Request Method: GET
Request URL: http://127.0.0.1:8000/panel/client/create/

Django Version: 1.8.8
Python Version: 3.5.1
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'core',
 'client',
 'registration',
 'avatar',
 'filer',
 'mptt',
 'easy_thumbnails',
 'reversion',
'guardian')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware')


Traceback:
File "C:\Users\loc\dJangoEnvironment\lib\site-packages\django\core\handlers\base.py" in get_response
  132.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\loc\dJangoEnvironment\lib\site-packages\django\contrib\auth\decorators.py" in _wrapped_view
  22.                 return view_func(request, *args, **kwargs)
File "C:\Users\loc\PycharmProjects\CRM\core\views.py" in client_create
  72.         dict['form_user'] = ClientUserCreateForm(prefix="test1")

Exception Type: TypeError at /panel/client/create/
Exception Value: __init__() got an unexpected keyword argument 'prefix'

回溯2 - 更新后__init __： 

Environment:

Request Method: GET
Request URL: http://127.0.0.1:8000/panel/client/create/

Django Version: 1.8.8
Python Version: 3.5.1
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'core',
 'client',
 'registration',
 'avatar',
 'filer',
 'mptt',
 'easy_thumbnails',
 'reversion',
 'guardian')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware')


Traceback:
File "C:\Users\loc\dJangoEnvironment\lib\site-packages\django\core\handlers\base.py" in get_response
  132.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\loc\dJangoEnvironment\lib\site-packages\django\contrib\auth\decorators.py" in _wrapped_view
  22.                 return view_func(request, *args, **kwargs)
File "C:\Users\loc\PycharmProjects\CRM\core\views.py" in client_create
  73.         dict['form_client'] = ClientCreateForm(prefix="test2")
File "C:\Users\loc\PycharmProjects\CRM\core\forms.py" in __init__
  75.         super(ClientUserCreateForm, self).__init__(*args, **kwargs)

Exception Type: TypeError at /panel/client/create/
Exception Value: super(type, obj): obj must be an instance or subtype of type

1 个答案:

答案 0 :(得分：7)

您重写了表单的__init__方法，并且您不接受新方法中的任何参数。它最容易接受并传递所有参数：

ClientUserCreateForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(ClientUserCreateForm, self).__init__(*args, **kwargs)
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