How is transaction management implemented in Django and how to do it correctly?

In Django, transaction management is handled through the django.db.transaction module. Main methods include:

• The @transaction.atomic decorator — wraps a function or method in an atomic transaction. If an exception occurs inside, all changes are rolled back.
• The with transaction.atomic(): context manager — explicitly defines a block of code to run within a transaction.

Example:

from django.db import transaction

def create_order():
    with transaction.atomic():
        order = Order.objects.create(...)
        # other database operations
        if some_error:
            raise Exception("Error, rolling back transaction")

Proper transaction implementation guarantees data integrity and prevents partial updates in case of errors.