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Does Django automatically update child records when the master foreign key is updated? Can it be disabled.
I can see an on.delete function but not an on.update function in the Django docs.
/vfclistsGUY
Django doesn’t touch the children at all unless you tell it to. Even in the case of DELETE CASCADE, that’s an enforcement on the database level, not in Django.
If you are using inline formsets for the children along with the main object’s form (or using inlines in the admin… same thing), then Django will update the children as well if there’s any changes to them. Otherwise, no, Django does nothing.
If you need to update the children on save, you should override your model’s
savemethod to do whatever needs to be done to the children, or use apost_savesignal.