init() 得到了意外的关键字参数 'pk'

Question

尝试按照 this 教程进行非常小的修改，以将表单和模板应用到我的对象模型，但是运行遇到一个我无法解决的错误。这应该很简单，模型创建表单，表单保存并重定向到详细信息页面。

据我所知，调用 HttpResponseRedirect 是导致错误的原因，但我不知道原因或问题所在。该代码似乎与我在教程中看到的以及我在 django 表单文档页面和其他教程中看到的相匹配（尽可能接近）。也许这是愚蠢的事情，我只是没有看到它，但我已经尝试了几个小时我能做的一切，我需要另一双眼睛来看待它。请帮忙。我在这里搞砸了什么？提前致谢。

我得到的错误是：

__init__() got an unexpected keyword argument 'pk'

这是我的 urls.py:

app_name = 'jobs'
urlpatterns = [
    # /jobs/
    url(r'^$', views.IndexView.as_view(), name='list'),
    url(r'^(?P<pk>[0-9]+)/$', views.detail, name='detail'),
    url(r'^edit/(?P<pk>[0-9]+)/$', views.edit, name='edit'),
    url(r'^edit/$', views.new, name='new'),
]

相关views.py 观点：

def new(request):
    if request.method == "POST":
        form = JobForm(request.POST)
        if form.is_valid():
            job = form.save(commit=False)
            user = request.user
            member = Member.objects.get(user=user)
            buyer = Buyer.objects.get(member=member)
            job.buyer = buyer
            job.buyer_paid = False
            job.freelancers_paid = False
            #job.created = timezone.now()
            job.save()
            return HttpResponseRedirect('detail', pk=job.pk)
    else:
        form = JobForm()
    return render(request, 'jobs/edit.html', {'form': form})

forms.py 文件:

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

    class Meta:
        model = Job
        fields = (
            'handle',
            'name',
            'venue',
            'room',
            'start_on',
            'end_on',
            'contact',
            'description',
            'instructions',
            'dress_code',
        )

回溯：

Environment:

Request Method: POST
Request URL: http://192.168.0.106:8000/jobs/edit/

Django Version: 1.8.7
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
 'django.contrib.admindocs',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.messages',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.staticfiles',
 'allauth',
 'allauth.account',
 'allauth.socialaccount',
 'rest_framework',
 'reversion',
 'commons',
 'members',
 'buyers',
 'freelancers',
 'payments',
 'geographic',
 'locations',
 'jobs',
 'technicians',
 'shifts')
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 "/home/matt/.virtualenvs/hmd/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  132.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/matt/Projects/hmd/hiremedirect/jobs/views.py" in new
  35.             return HttpResponseRedirect('detail', pk=job.pk)
File "/home/matt/.virtualenvs/hmd/local/lib/python2.7/site-packages/django/http/response.py" in __init__
  457.         super(HttpResponseRedirectBase, self).__init__(*args, **kwargs)
File "/home/matt/.virtualenvs/hmd/local/lib/python2.7/site-packages/django/http/response.py" in __init__
  340.         super(HttpResponse, self).__init__(*args, **kwargs)

Exception Type: TypeError at /jobs/edit/
Exception Value: __init__() got an unexpected keyword argument 'pk'

编辑补充：发生此错误时数据保存在数据库中。

Answer 1

您在此处将 pk 传递给 HttpResponseRedirect：

HttpResponseRedirect('detail', pk=job.pk)

HttpResponseRedirect 应该将用户重定向到另一个 URL。要从您的 urlconf 构建 url，您可以使用此处描述的多种方法：https://docs.djangoproject.com/en/dev/topics/http/urls/#reverse-resolution-of-urls

我会选择这样使用 reverse：

HttpResponseRedirect(reverse('detail', kwargs={"pk": job.pk}))

最终代码如下：

from django.core.urlresolvers import reverse

# [ other codes ]

def new(request):
    if request.method == "POST":
        form = JobForm(request.POST)
        if form.is_valid():
            job = form.save(commit=False)
            user = request.user
            member = Member.objects.get(user=user)
            buyer = Buyer.objects.get(member=member)
            job.buyer = buyer
            job.buyer_paid = False
            job.freelancers_paid = False
            #job.created = timezone.now()
            job.save()
            return HttpResponseRedirect(reverse('detail', kwargs={"pk": job.pk}))

注意： redirect 函数使用 reverse 来解析 url。

init() 得到了意外的关键字参数 'pk'

init() got an unexpected keyword argument 'pk'

python

django

django-forms

__init__() 得到了意外的关键字参数 'pk'

__init__() got an unexpected keyword argument 'pk'

python

django

django-forms

init() 得到了意外的关键字参数 'pk'

init() got an unexpected keyword argument 'pk'