mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2025-08-04 10:59:45 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

[2.2.x] Fixed #30326 -- Doc'd how to avoid persistence of F() assignment.

Browse source 
Backport of bfae195b0a from master
This commit is contained in:
sage 2019-04-13 09:17:33 +07:00 • committed by Mariusz Felisiak
parent 896cc71901
commit 86de106864
1 changed files with 3 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

4
docs/ref/models/expressions.txt
View file

@ -185,7 +185,9 @@ instance and will be applied on each :meth:`~Model.save()`. For example::
reporter.save()
``stories_filed`` will be updated twice in this case. If it's initially ``1``,
the final value will be ``3``.
the final value will be ``3``. This persistence can be avoided by reloading the
model object after saving it, for example, by using
:meth:`~Model.refresh_from_db()`.
Using ``F()`` in filters
~~~~~~~~~~~~~~~~~~~~~~~~