Django - 在未请求的视图上获取ViewDoesNotExist

Question

我刚刚完成了Django教程的第四部分，但在检查服务器时遇到了这个问题：

出现了ViewDoesNotExist的错误，意思是说在渲染时找不到视图：尝试在模块polls.views中找到results，但错误提示是：这个模块没有'results'这个属性。

还有常见的错误信息：

/usr/lib/pymodules/python2.7/django/core/urlresolvers.py中的_get_callback，行170

教程的最后一部分是要从views.py中去掉除了'vote'以外的所有请求，我以为我做对了，但显然不是。

从我能看到的代码中，并没有请求'results'这个视图，我仔细检查了好几遍代码，还是找不到问题。

urls.py：

from django.conf.urls.defaults import patterns, include, url

from django.contrib import admin
admin.autodiscover()

url(r'^admin/doc/', include('django.contrib.admindocs.urls')),

url(r'^admin/', include(admin.site.urls)),

from django.conf.urls.defaults import *
from django.views.generic import DetailView, ListView
from polls.models import Poll

urlpatterns = patterns('',
    url(r'^$',
        ListView.as_view(
            queryset=Poll.objects.order_by('-pub_date')[:5],
            context_object_name='latest_poll_list',
            template_name='polls/index.html')),
    url(r'^(?P<pk>\d+)/$',
        DetailView.as_view(
            model=Poll,
            template_name='polls/detail.html')),
    url(r'^(?P<pk>\d+)/results/$',
        DetailView.as_view(
            model=Poll,
            template_name='polls/results.html'),
        name='poll_results'),
    url(r'^(?P<poll_id>\d+)/vote/$', 'polls.views.vote'),
)

views.py：

from django.http import HttpResponseRedirect, HttpResponse
from polls.models import Choice, Poll
from django.shortcuts import render_to_response, get_object_or_404
from django.http import Http404
from django.template import RequestContext
from django.core.urlresolvers import reverse

def vote(request, poll_id):
    p = get_object_or_404(Poll, pk=poll_id)
    try:
        selected_choice = p.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the poll voting form.
        return render_to_response('polls/detail.html', {
            'poll': p,
            'error_message': "You didn't select a choice.",
        }, context_instance=RequestContext(request))
    else:
        selected_choice.votes += 1
        selected_choice.save()

        return HttpResponseRedirect(reverse('poll_results', args=(p.id,)))

models.py：

from django.db import models

class Poll(models.Model):
    question = models.CharField(max_length=200)
    pub_date = models.DateTimeField('date published')
    def __unicode__(self): 
        return (self.question)

class Choice (models.Model):
    poll = models.ForeignKey(Poll)
    choice = models.CharField(max_length=200)
    votes = models.IntegerField()
    def __unicode__(self):
        return (self.choice)

admin.py：

from polls.models import Poll
from polls.models import Choice
from django.contrib import admin

class ChoiceInline(admin.TabularInline):
    model = Choice
    extra = 3

class PollAdmin(admin.ModelAdmin):
    fieldsets = [
        (None,               {'fields': ['question']}),
        ('Date information', {'fields': ['pub_date'], 'classes': ['collapse']}),
    ]
    inlines = [ChoiceInline]
    list_display = ('question', 'pub_date')
    list_filter = ['pub_date']
    date_hierarchy = 'pub_date'
    search_fields = ['question']


admin.site.register(Poll, PollAdmin)

希望能得到一些帮助来找到问题所在。:)

django web开发 models.py admin.py urls.py views.py viewdoesnotexist urlresolvers

Django - 在未请求的视图上获取ViewDoesNotExist

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