Django url pattern is not a registered view function or pattern

Question

I have a small Django web app, with multiple applications inside them. I have used the include in the urls.py files, but whenever I reference the URLs in the HTML files they don't load. Below are my 3 urls.py files. The one I'm having an issue will specifically is the nodes url pattern in the nodes urls.py

#main urls.py

from django.contrib import admin
from django.urls import path, include
    
urlpatterns = [
    path('admin/', admin.site.urls),
    path('account/', include('account.urls')),
]

#account urls.py

from django.urls import path, include
from django.contrib.auth import views as auth_views
from . import views

app_name = 'account'

urlpatterns = [
    path('login/', auth_views.LoginView.as_view(), name='login'),
    path('logout/', auth_views.LogoutView.as_view(), name='logout'),
    path('dashboard/', views.dashboard, name='dashboard'),
    path('nodes/', include('nodes.urls')),
]


#nodes urls.py

from django.urls import path
from . import views

app_name = 'nodes'
urlpatterns = [
    path('', views.nodes, name='nodes'),
]

This is my HTML file where I am referencing the URL pattern:

<li {% if section == 'nodes' %}class="active"{% endif %}>
     <a class="nav-link" href="{% url 'nodes' %}">Nodes</a>
</li>

You can try without the " " brackets. Just go with <a href={% url 'index' %}>Начало</a> — Ivan Dimitrov
– Ivan Dimitrov, Commented Aug 20, 2021 at 8:54
@Henty how would I do that? I thought because the account urls.py is included in the main urls.py file then nodes urls.py file would be included? — TheSunbathingCrow
– TheSunbathingCrow, Commented Aug 20, 2021 at 9:09
oh yeah i missed that sorry, i think it would be something like 'account.nodes.nodes' or a shorter version to call it — Henty
– Henty, Commented Aug 20, 2021 at 9:13

Erfan · Accepted Answer · 2021-08-20 09:27:36Z

1

Due to this pattern name you set in urls file if change HTML file to this it must be fixed:

<li {% if section == 'nodes' %}class="active"{% endif %}>
   <a class="nav-link" href="{% url 'account:nodes:nodes' %}">Nodes</a>
</li>

just for tips :) if import urls file at the django shell and print list of urlspatterns you could see default name assign to your nodes path.

answered Aug 20, 2021 at 9:27

Erfan

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4 Comments

TheSunbathingCrow Over a year ago

will I also have to change this in the settings.py at the LOGIN_URL attribute?

Erfan Over a year ago

@Morgan LOGIN_URL just the URL or named URL pattern where requests are redirected for login when using the login_required() decorator, this settings variable not related to your Django reverse path used at Django template tags, But if you use named URL these names must be the same.

Erfan Over a year ago

@Morgan Did not my answer to solve your problem ? I was test your code at empty Django project and direct path correctly to nodes view. If you still have an error please edit your question with error logs

TheSunbathingCrow Over a year ago

Yes it did thank you @Erfan, I was still having problems, but then I found one line of html which I hadn't changed and now its fixed. Thank you

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