id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
13021	Allowing models to influence QuerySet.update	Dennis Kaarsemaker	Dennis Kaarsemaker	"I'd like to have a bit more control over what update() does, e.g. for auditing purposes. I know that I can simply write a few lines of code near every update() call to do what I want, but that violates DRY.

Attached patch adds a few new features:

* pre_update and post_update signals
* a pre_update method for Field that does nothing
* a pre_update method for DateField for auto_now magic
* an update() method for Model that calls pre_update for all fields. This method is a classmethod
* a patched QuerySet.update() that
  - Sends the pre_update and post_update signals
  - Calls the models update method to update the kwargs dict

The patch is untested, but should give a good idea of what I want to achieve. Is this approach suitable for inclusion in django ? If so, I will complete the patch, add tests and documentation and will submit it for inclusion at the appropriate time."	New feature	closed	Database layer (models, ORM)	dev	Normal	wontfix	update	slinkp@…	Design decision needed	1	0	0	0	0	0