在 Django 中找不到查看功能

Question

当尝试单击按钮重定向到 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)