Have you worked with Subtransaction in Django for transaction management?

Django does not have direct support for subtransactions, as in some other ORM or DBMS. However, nested transactions can be used via savepoint — this allows rolling back part of a transaction without canceling the entire operation. In Django, there is a context manager transaction.savepoint() and functions savepoint_rollback() and savepoint_commit().

Example of using nested transactions:

from django.db import transaction

with transaction.atomic():
    # Main transaction
    do_something()
    sid = transaction.savepoint()
    try:
        do_something_risky()
    except Exception:
        transaction.savepoint_rollback(sid)  # Rollback only this part
    else:
        transaction.savepoint_commit(sid)  # Confirm changes
    do_something_else()

Thus, you can manage parts of a transaction without rolling back everything. This is useful for complex operations where you need to partially save changes even in case of errors.