Hi all,
http://dpaste.org/1vhf6/
With the following models.py, and the output seen further
down, can anyone explain why pre_remove and post_remove
"actions" are not happening when I remove an item from
a M2M relation?
class Interface(models.Model):
name = models.CharField('Interface',
primary_key=True,
max_length=80)
class Netgroup(models.Model):
name = models.CharField('Netgroup',
primary_key=True,
max_length=80)
interfaces = models.ManyToManyField(Interface,
null=True,
blank=True)
def __unicode__(self):
return self.name
from django.db.models.signals import m2m_changed
def tester(sender, **kwargs):
action = kwargs['action']
instance = kwargs['instance']
pk_set = kwargs['pk_set']
model = kwargs['model']
fd = open('/tmp/m2m.log', 'a+')
fd.write('%s on %s pk_set of %s is %s\n' % (action, instance, model,
str(pk_set)))
fd.close()
m2m_changed.connect(tester, dispatch_uid="whatever")
#===============================================================
#
# IN ADMIN UI: Removed 'barley.foo.org' from jbtest2 which
# had 4 interfaces (and then has 3, correctly)
#
# Logs the following...
#
# Where's the "remove" actions?
#
#===============================================================
pre_clear on instance jbtest2: pk_set of <class 'hostdb.models.Interface'> is
None
post_clear on instance jbtest2: pk_set of <class 'hostdb.models.Interface'> is
None
pre_add on instance jbtest2: pk_set of <class 'hostdb.models.Interface'> is
set([u'babylon.foo.org', u'ape.foo.org', u'baker.foo.org'])
post_add on instance jbtest2: pk_set of <class 'hostdb.models.Interface'> is
set([u'babylon.foo.org', u'ape.foo.org', u'baker.foo.org'])
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