extends - Теги шаблонов Django
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 paassing data from view to template, but also provides some limited features of a programming such as variables, for loops, comments, extends etc.
This article revolves about how to use extends tag in Templates. extends
tag is used for inheritance of templates in django. One needs to repeat the same code again and again. Using extends
we can inherit templates as well as variables.
Syntax
{% extends "template_name.html" %}
Example
assume the following directory structure:
dir1/ template.html base2.html my/ base3.html base1.html
In template.html, the following paths would be valid:
{% extends "./base2.html" %} {% extends "../base1.html" %} {% extends "./my/base3.html" %} |
extends – Django template Tags Explanation
Illustration of How to use extends tag in Django templates using an Example. Consider a project named geeksforgeeks
having an app named geeks
.
Refer to the following articles to check how to create a project and an app in Django.
- How to Create a Basic Project using MVT in Django?
- How to Create an App in Django ?
Now create a view through which we will access the template,
In geeks/views.py
,
# import Http Response from django from django.shortcuts import render # create a function def geeks_view(request): # return response return render(request, "extendedgeeks.html" ) |
Create a url path to map to this view. In geeks/urls.py
,
from django.urls import path # importing views from views.py from .views import geeks_view urlpatterns = [ path("", geeks_view), ] |
extends
is always used with block
tags so that can be inherited and overriden. Create a template as base template in templates/geeks.html
.
< h1 >Main Template</ h1 > {% block content %} {% endblock %} |
Now create a template which will use geeks.html as base template. Create a new template extendedgeeks.html
,
{% extends "geeks.html" %} {% block content %} < h2 > GeeksForGeeks is the Best {% endblock %} |
Let’s check if data is displayed from both the templates in extendedgeeks.html
Advanced Usage
{% extends variable %}
uses the value of variable. If the variable evaluates to a string, Django will use that string as the name of the parent template. If the variable evaluates to a Template object, Django will use that object as the parent template.
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