Am Donnerstag, 24. Januar 2008 13:08 schrieb Tim Sawyer:
> Hi Folks,
>
> I'm just evaluating django for use on a project. I have a multiuser
> application where many users can be changing data at once.
>
> What's the status of hibernate style optimistic locking, where each object
> has a version and update/deletes are prevented if the last saved version of
> that object is newer than the one being saved?
Hi,
I use this solution:
The model class has an field mtime which get's updated automatically:
class MyObject(models.Model):
mtime=models.DateTimeField(verbose_name=u'Letzte Änderung am',
editable=False, auto_now=True)
def mtime_has_changed(self, request):
mtime=request.POST['mtime']
mtime=datetime.datetime(*[int(i) for i in re.findall(r'[\d]+',
mtime)])
return self.mtime!=mtime
Comments welcome
HTH,
Thomas
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