Sigh. I hate Google Groups via web. Here is a readable version of the .save() method below.
https://gist.github.com/1591028 On Jan 10, 3:15 pm, Jeff <jbla...@mitre.org> wrote: > For example, altering 'pana.our.org''s netgroups field, the following > save() method results in this debug line which makes no sense to me: > > CHANGED: Device pana.our.org had old netgroups [{'name': > u'testnetgroup', 'desc': u''}] and now has new netgroups [{'name': > u'testnetgroup', 'desc': u''}] > > Both the new and old netgroups in that line are identical and reflect > the NEW value. Working code would state: > > CHANGED: Device pana.our.org had old netgroups [{'name': > u'testnetgroup', 'desc': u''}] and now has new netgroups [] > > class Device(models.Model): > # ... > netgroups = models.ManyToManyField(Netgroup, > null=True, > verbose_name="Netgroups", > blank=True) > # ... > def save(self, *args, **kwargs): > try: > # > # Get the THEORETICALLY old data from database for this > device > # > oldnetgroups = > Device.objects.get(pk=self.pk).netgroups.values_list() > except: > # This is likely a brand new device object, so can't look > it up > oldnetgroups = None > # > # Compare the THEORETICAL old netgroups value with the > theoretical new value > # > if (oldnetgroups != None) and (oldnetgroups != > self.netgroups.values_list()): > prefix = 'CHANGED' > else: > prefix = 'UNCHANGED' > if oldnetgroups != None: > fd = open('/tmp/test.log', 'a') > fd.write('%s: Device %s had old netgroups %s and now has > new netgroups %s\n' % (prefix, self.name, oldnetgroups, > self.netgroups.values())) > fd.close() > super(Device, self).save(*args, **kwargs) -- 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 django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
