#13534: m2m_changed signal doesn't call receiver
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Reporter: Chris Targett <ch...@xlevus.net> | Owner: nobody
Status: new | Milestone: 1.2
Component: Database layer (models, ORM) | Version: 1.2-beta
Keywords: m2m_save, dispatch, signal | Stage: Unreviewed
Has_patch: 0 |
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For some reason or another the m2m_changed signal does not call the
receiver.
A rough models.py similar to my code:
{{{
#!python
class SomeContent(models.Model):
sites = models.ForeignKey(Site)
def m2m_handler(sender, instance, action, reverse, model, pk_set,
**kwargs):
raise NotImplementedError
models.signals.m2m_changed.connect(m2m_handler, SomeContent)
>>> sc = SomeContent()
>>> sc.save()
>>> sc.sites.add(Site.objects.get_current()) # Here you would expect a
"NotImplementedError"
>>>
}}}
It seems the signal loses all receivers in
`django.dispatch.dispatcher.Signal._line_receivers` line 215.
--
Ticket URL: <http://code.djangoproject.com/ticket/13534>
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