Template Tags in Django
Introduction
In Django, template tags are used to add logic in templates. They help in rendering the dynamic content in the templates. Template tags are used inside curly braces and percent signs {% %}. This tutorial will guide you through various commonly used template tags with examples.
{% for %} Tag
The {% for %} tag is used for iterating over a sequence (like a list or a queryset). It allows you to loop through items and display them.
Example:
{% raw %}
-
{% for item in item_list %}
- {{ item }} {% endfor %}
{% if %} Tag
The {% if %} tag is used for conditional statements. It allows you to render content based on certain conditions.
Example:
{% raw %}
{% if user.is_authenticated %}
Welcome, {{ user.username }}!
{% else %}
Please log in.
{% endif %}
{% endraw %}
{% block %} and {% extends %} Tags
The {% block %} and {% extends %} tags are used for template inheritance. The {% extends %} tag is used in child templates to inherit from a parent template, and the {% block %} tag defines a block that the child template can override.
Example (base.html):
{% raw %}
{% block title %}My Site{% endblock %}
My Site
{% block content %}
{% endblock %}