Django 404 Error page not found...当前路径与上一个匹配

Question

我是 django 的新手，我正在研究我自己的民意调查教程变体。我的应用程序运行良好，每个页面都正确加载。然后我做了一个改变；我创建然后删除了一个模型。现在，许多网址似乎已损坏。我不明白这个错误：

Page not found (404)
Request Method: GET
Request URL:    http://127.0.0.1:8000/polls/1/pick/
Raised by:  polls.views.pick
Using the URLconf defined in mySite.urls, Django tried these URL patterns, in this order:

polls/ [name='index']
polls/ <int:pk>/ [name='detail']
polls/ <int:pk>/results/ [name='results']
polls/ <int:question_id>/vote/ [name='vote']
polls/ <int:question_id>/tally/ [name='tally']
polls/ <int:question_id>/pick/ [name='pick']
The current path, polls/1/pick/, matched the last one.

You’re seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.

所以我不明白为什么它说：当前路径，polls/1/pick/，匹配最后一个。

还有找不到页面？这是如何运作的？当应用程序之前运行良好时，是什么导致了这种情况？

我的urls.py:

from django.urls import path

from . import views

app_name = 'polls'

urlpatterns = [
    path('', views.IndexView.as_view(), name='index'),
    path('<int:pk>/', views.DetailView.as_view(), name='detail'),
    path('<int:pk>/results/', views.ResultsView.as_view(), name='results'),
    path('<int:question_id>/vote/', views.vote, name='vote'),
    path('<int:question_id>/tally/', views.tally, name='tally'),
    path('<int:question_id>/pick/', views.pick, name='pick'),
    path('<int:pk>/video/', views.VideoView.as_view(), name='video'),
    path('<int:pk>/reveal/', views.RevealView.as_view(), name='reveal'),
]

和观看片段：

def pick(request, question_id):
    question = get_object_or_404(Question, pk=question_id)
    player = get_object_or_404(Player, pk=1)
    question.score = player.score
    question.save()
    return HttpResponseRedirect(reverse('polls:video', args=(question.id,)))

Answer 1

这行错误

Raised by:  polls.views.pick

告诉你你没有得到 404 是因为没有找到匹配 URL，你得到 404 是因为你的视图函数 polls.views.pick 引发了 404。你有两行那个可以引发 404

的函数

question = get_object_or_404(Question, pk=question_id)
player = get_object_or_404(Player, pk=1)

因此在您的数据库中，您要么没有 pk=1 的问题，要么没有 pk=1 的玩家。

Django 404 Error page not found...当前路径与上一个匹配

Django 404 Error page not found...the current path matched the last one

django

http-status-code-404