python - Django NoReverseMatch

Question

我不明白这是怎么回事？我试图制作一个项目的详细信息页面，例如 http://tutorial.djangogirls.org/en/extend_your_application/index.html 上的示例它在我的项目中不起作用，但在练习中一切都很好。

错误信息: NoReverseMatch at/

Reverse for 'events.views.event_detail' with arguments '()' and keyword arguments '{u'pk': 3}' not found. 1 pattern(s) tried: ['$event/(?P<pk>[0-9]+)/$']

HTML(片段)

<div class="col-xs-6"><a class="btn btn-primary" href="{% url 'events.views.event_detail' pk=event.pk %}">Read more</a></div>
         </div>

设置.py

ROOT_URLCONF = 'mysite.urls' 

应用 urls.py

from django.conf.urls import include, url
from . import views

urlpatterns = [
    url(r'^$', views.events_list),
    url(r'^event/(?P<pk>[0-9]+)/$', views.event_detail),
]

app views.py

from django.shortcuts import render, get_object_or_404
from django.utils import timezone
from .models import Event

def events_list(request):
    events = Event.objects.filter(published_date__lte=timezone.now()).order_by('published_date')
    return render(request, 'events/events_list.html', {'events': events})

def event_detail(request, pk):
    event = Event.objects.get(pk=pk)
    return render(request, 'events/event_detail.html', {'event': event})

Answer 1

您还没有显示您的 mysite.urls，但是从错误消息看来您做了这样的事情:

(r'^events/$', include('events.urls')),

您需要删除终止 $，因为这意味着正则表达式的结尾；在那之后没有什么可以匹配的。应该是:

(r'^events/', include('events.urls')),

请注意，您还应该提供事件 URL 名称，以便于引用:

url(r'^$', views.events_list, name='events_list'),
url(r'^event/(?P<pk>[0-9]+)/$', views.event_detail, name='event_detail'),

这样您现在就可以:

{% url 'event_detail' pk=event.pk %}