Now, you will add search capabilities to your blog. The Django ORM allows you to perform simple matching operations using, for example, the contains filter (or its case-insensitive version, icontains). You can use the following query to find posts that contain the word framework in their body:

from blog.models import Post
Post.objects.filter(body__contains='framework')

However, if you want to perform complex search lookups, retrieving results by similarity or by weighting terms, you will need to use a full-text search engine.

Django provides a powerful search functionality built on top of PostgreSQL full-text search features. The django.contrib.postgres module provides functionalities offered by PostgreSQL that are not shared by the other databases that Django supports. You can learn about PostgreSQL full-text search at https://www.postgresql.org/docs/10/static/textsearch.html.