hi again so, auto_now is deprecated and can be replaced by overriding the save()method. but what about auto_now_add?
how to distinguish between creation and update in save()??? is this<http://groups.google.com/group/django-developers/browse_thread/thread/4cd631c225cb4e52?tvc=2&q=auto_add_now>still being worked on? class Foo(models.Model): created = models.DateTimeField(auto_now_add=True) modified = models.DateTimeField(auto_now=True) thanks André On Mon, Jul 21, 2008 at 8:18 AM, Andre Meyer <[EMAIL PROTECTED]> wrote: > hi Julien > > that makes perfect sense and looks much better than auto_now. always good > to avoid deprecated stuff. > > thanks a lot > André > > > > > On Mon, Jul 21, 2008 at 6:26 AM, Julien Phalip <[EMAIL PROTECTED]> wrote: > >> >> Hi, >> >> The declarative attribute 'auto_now' (as well as 'auto_now_add') is >> deprecated and its support will eventually be dropped. To achieve that >> you need to override the 'save' method. In that same method you can >> also call the parent's 'save' method to propagate the change to the >> ancestors: >> >> ModelA(models.Model): >> modified = models.DateTimeField() >> parent = models.ForeignKey('self', related_name='children', >> null=True, >> blank=True) >> >> def save(def): >> self.modified = datetime.now() >> if self.parent: >> self.parent.save() >> super(ModelA, self).save() >> >> On Jul 20, 6:28 pm, "Andre Meyer" <[EMAIL PROTECTED]> wrote: >> > hi all >> > >> > i have a model with a modifed field >> > >> > modified = models.DateTimeField(auto_now=True) >> > >> > and a parent field >> > >> > parent = models.ForeignKey('self', related_name='children', null=True, >> > blank=True) >> > >> > in order to allow for creating a tree of items. >> > >> > what is the best way to propagate a modification in a child to set all >> its >> > parents to the same modification time? >> > >> > or is it possible to sort a query set that retrieves only the top-most >> items >> > (parent=None) on the latest modification time of its children? maybe >> using a >> > method that calculates and returns that date on the fly? >> > >> > thanks a lot for your help >> > André >> > >> > using trunk 8004, full code is >> > here<http://code.google.com/p/pastiche/source/browse> >> > . >> >> >> > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
