A Django template is a text document or a Python string marked-up using the Django template language. Django being a powerful Batteries included framework provides convenience to rendering data in a template. Django templates not only allow passing data from view to template, but also provides some limited features of programming such as variables, for loops, comments, extends, url, etc.
This article revolves about how to use url tag in Templates. url tag Returns an absolute path reference (a URL without the domain name) matching a given view and optional parameters. This is a way to output links without violating the DRY principle by having to hard-code URLs in your templates:
Syntax
{% url 'some-url-name' v1 v2 %}
The first argument is a URL pattern name. It can be a quoted literal or any other context variable. Additional arguments are optional and should be space-separated values that will be used as arguments in the URL.
Example
{% url 'template1' %}
url – Django template Tags Explanation
Illustration of How to use url tag in Django templates using an Example. Consider a project named neveropen having an app named Lazyroar.
Refer to the following articles to check how to create a project and an app in Django.
Now create two views through which we will access the template,
In Lazyroar/views.py,
# import Http Response from djangofrom django.shortcuts import render # create a functiondef Lazyroar_view(request): # return response return render(request, "Lazyroar.html") def nav_view(request): # return response return render(request, "nav.html") |
Create a url path to map to this view. URLs need to have a name which then can be used in templates and with url tag. In Lazyroar/urls.py,
from django.urls import path # importing views from views..pyfrom .views import Lazyroar_view, nav_view urlpatterns = [ path('1/', Lazyroar_view, name = "template1"), path('2/', nav_view, name = "template2"),] |
Now we will create two templates to demonstrate now tag. Create a template in Lazyroar.html,
<html><h1>Template 1</h1><!-- Link to template 2 --><a href = "{% url 'template2' %}">Go to template 2</a></html> |
Create a template in Lazyroar.html,
<html><<h2>Template 2</h2><!-- Link to template 1 --><a href = "{% url 'template1' %}">Go to template 1</a></html> |
Now visit http://127.0.0.1:8000/1,
Click on the link and it will redirect to other url.
Advanced Usage
suppose you have a view, app_views.client, whose URLconf takes a client ID (here, client() is a method inside the views file app_views.py). The URLconf line might look like this:
path('client/<int:id>/', app_views.client, name='app-views-client')
If this app’s URLconf is included into the project’s URLconf under a path such as this:
path('clients/', include('project_name.app_name.urls'))
…then, in a template, you can create a link to this view like this:
{% url 'app-views-client' client.id %}
The template tag will output the string /clients/client/123/.
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