I'd be interested in a signal for related add/remove relationships.
This would involve a signal for one-to-many, many-to-one, and
many-to-many saves.  Something like:

dispatcher.send(signal=signals.pre_related_add, \
  sender=self.__class__, related_object=self, instance=self)

It is backwards-compatible, and the many-to-one/one-to-many signals seem
easy enough to add to existing code.  The many-to-many may take some
work.

Does this sound useful?

Casey



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