Django 2 by Example

Creating custom template tags

Django provides the following helper functions that allow you to create your own template tags in an easy manner:

• simple_tag: Processes the data and returns a string
• inclusion_tag: Processes the data and returns a rendered template

Template tags must live inside Django applications.

Inside your blog application directory, create a new directory, name it templatetags, and add an empty __init__.py file to it. Create another file in the same folder and name it blog_tags.py. The file structure of the blog application should look like the following:

blog/    __init__.py    models.py    ...    templatetags/        __init__.py        blog_tags.py

The way you name the file is important. You will use the name of this module to load tags in templates. ...