Retrieving related data in Django

Retrieving related data in Django

Retrieving one-to-many and many-to-many related data is a recurring theme in Web apps. This post attempts a best approach in Django.

All applications are different. However some themes keep coming up.

One such theme is retrieving data from several tables. Tables related using one-to-many and many-to-many relationships.

Since this post is inspired by Django’s own docs, it builds on the Pizza and Topping example entities to demonstrate a typical many-to-many relationship. I.e. a Pizza has one-to-many Toppings. And a Topping can be on one-to-many Pizzas:

Initial Entity-Relationship Diagram

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