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python - 在 django 中找不到查看功能

问题描述

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.

艺术数据库/urls.py：

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

模板/artdb/base.html：

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

艺术数据库/views.py：

def getonboard(request):

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

模板/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 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？

标签： pythondjangourlroutingmatch

解决方案

当您包含来自不同应用程序的 urlpatterns 时，您通常会通过将该行添加app_name = 'artdb'到应用程序内的 urls.py 文件来命名这些 URL。因此，如果主 urls.py 文件有以下行：

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

artdb/urls.py 文件有以下几行：

app_name = 'artdb'

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

然后你可以通过命名空间来反转这个 URL：

reverse('artdb:getonboard')

这允许您在多个应用程序中使用相同的名称（例如index很常见），例如，拥有artdb:index和user:index。

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