Django Bulk Update to Trigger save()

--------------------------------------------------
Hire the world's top talent on demand or became one of them at Toptal: https://topt.al/25cXVn
and get $2,000 discount on your first invoice
--------------------------------------------------

Take control of your privacy with Proton's trusted, Swiss-based, secure services.
Choose what you need and safeguard your digital life:
Mail: https://go.getproton.me/SH1CU
VPN: https://go.getproton.me/SH1DI
Password Manager: https://go.getproton.me/SH1DJ
Drive: https://go.getproton.me/SH1CT

Music by Eric Matyas
https://www.soundimage.org
Track title: Switch On Looping

--

Chapters
00:00 Django Bulk Update To Trigger Save()
00:37 Accepted Answer Score 6
01:09 Thank you

--

Full question
https://stackoverflow.com/questions/2832...

--

Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...

--

Tags
#python #django #djangoorm

#avk47

ACCEPTED ANSWER

Score 6

No, this is impossible:

Realize that update() does an update at the SQL level and, thus, does not call any save() methods on your models, nor does it emit the pre_save or post_save signals (which are a consequence of calling Model.save()). If you want to update a bunch of records for a model that has a custom save() method, loop over them and call save()

$ ./manage.py shell
Python 2.7.6 (default, Mar 22 2014, 22:59:38) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from django.contrib.auth.models import User
>>> for u in User.objects.all():
...     u.is_active = True
...     u.save()
... 
>>>