How can atomic operations be ensured in Django applications?

In Django, transaction management is used to ensure atomicity of operations using the django.db.transaction module.

The main way is to use the decorator or context manager @transaction.atomic or with transaction.atomic():.

This guarantees that all operations inside the block are executed as a single transaction: either all changes are committed or, in case of an error, all changes are rolled back.

Example:

from django.db import transaction

def update_data():
    with transaction.atomic():
        obj1.save()
        obj2.save()
        # if an exception occurs here, changes will not be saved

Thus, transaction.atomic ensures data integrity and prevents partial application of changes.