Question

尝试单击按钮以重定向到getonboard.html时，出现以下错误：

django.urls.exceptions.NoReverseMatch: Reverse for 'getonboard' not found. 'getonboard' is not a valid view function or pattern name.

artdb / urls.py：

path('getonboard/',views.getonboard,name='getonboard'),

templates / artdb / base.html：

<p><a class="btn btn-primary btn-lg" href="{% url 'getonboard' %}" role="button">Get onboard &raquo;</a></p>

artdb / views.py：

def getonboard(request):

    return render(request,'artdb/getonboard.html')

templates / artdb / getonboard.html：

{% extends "artdb/base.html" %}

{% block content %}
<h2>getonboard template</h2>
     <p>this is the getonboard text</p>
{% endblock content %}

完整的主要urls.py：

"""winmalist URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""

from django.contrib import admin
from django.urls import include, path
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
    path('artdb/', include('artdb.urls')),
    path('admin/', admin.site.urls),
]+static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)

完整的artdb / urls.py：

from django.urls import path
from django.views.generic import TemplateView
from artdb.views import PersonList

from . import views

app_name='artdb'

urlpatterns = [
#    path('base/',views.base,name='base.html'),
    path('getonboard/',views.getonboard,name='getonboard'),
    path('index/',views.index,name='index'),
    path('persons/',PersonList.as_view()),
    path('',TemplateView.as_view(template_name='artdb/base.html')),
    path('test2',TemplateView.as_view(template_name='artdb/test2.html')),
#     path('', views.IndexView.as_view(), name='index'),
#     path('contract', views.contract, name='contract'), 
#     path('<int:person_id>/test1/', views.test1, name='test1'),
]

有什么想法吗？

Answer 1

当您包含其他应用程序中的urlpatterns时，通常会通过在应用程序内部的urls.py文件中添加app_name = 'artdb'行来为这些URL命名空间。因此，如果主urls.py文件包含以下行：

urlpatterns = [
    path('artdb/', include('artdb.urls')),
    ...]

artdb / urls.py文件包含以下几行：

app_name = 'artdb'

urlpatterns = [
     path('getonboard/', views.getonboard, name='getonboard'),
     ...]

然后您可以通过对名称空间进行命名来反转此URL：

reverse('artdb:getonboard')

这使您可以在多个应用程序中使用相同的名称（例如，index是常见的），例如artdb:index和user:index。

在Django中找不到视图功能

1 个答案: