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Django post_save signal on parent class with multi-table inheritance

Feb 18, 2015 · Updated: Nov 07, 2017 · by Tim Kamanin

Entity is a parent class of polymorphic multi-table inheritance. We want to attach post_save signal to every child of this class.

# Propagate signal across all children of a polymorphic parent.
for subclass in Entity.__subclasses__():
    post_save.connect(delete_comments, sender=subclass)

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