The chain function from itertools
In this example, we first import the chain function from itertools. Then, we retrieve the QuerySets for both the Author and Book models using objects.all(). Finally, we use a chain to combine these QuerySets and convert the result into a list.
Python3
from itertools import chain from .models import Author, Book authors = Author.objects. all () books = Book.objects. all () combined_queryset = list (chain(authors, books)) |
How to combine multiple QuerySets in Django?
QuerySets allow you to filter, order, and manipulate data from your database using a high-level Pythonic syntax. However, there are situations where you may need to combine multiple QuerySets into a single QuerySet to work with the data more efficiently. This article will explore various methods to achieve this in Django.