/Django 1.11

Related objects reference

Direct Assignment

A related object set can be replaced in bulk with one operation by assigning a new iterable of objects to it:

>>> new_list = [obj1, obj2, obj3]
>>> e.related_set = new_list

If the foreign key relationship has null=True, then the related manager will first disassociate any existing objects in the related set before adding the contents of new_list. Otherwise the objects in new_list will be added to the existing related object set.

Deprecated since version 1.10: Direct assignment is deprecated in favor of the set() method:

>>> e.related_set.set([obj1, obj2, obj3])

This prevents confusion about an assignment resulting in an implicit save.

© Django Software Foundation and individual contributors
Licensed under the BSD License.