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

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Backport of bfae195b0a2c8dae755610a7e23add5c6bc37b5e from master
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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
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docs/ref/models/expressions.txt
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@ -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
~~~~~~~~~~~~~~~~~~~~~~~~