Re: access the state of a Model object prior to it's modification ?

On Mon, Jul 30, 2012 at 6:22 PM, Tomas Neme <lacrymology@gmail.com> wrote:

uhm, if you register a listener to the pre_save signal, then you can do this:


if instance.published:
  # the instance about to be saved has the published flag on
  dbojb = MyModel.objects.get(id=instance.id)

  # did it have it on the database?
  if not dbobj.published:
    do_stuff()

you probably need to check the "created" argument on the listener that tells you if the object is a new one, or a modification

Great! ... this is what I was looking for. Signals is what I meant by 

"the django way of .."

Thanks all!

 

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