Rails 3: How to identify after_commit action in observers? (create/update/destroy)

Question

I have an observer and I register an after_commit callback. How can I tell whether it was fired after create or update? I can tell an item was destroyed by asking

Answer 1

You can change your event hook from after_commit to after_save, to capture all create and update events. You can then use:

id_changed?

...helper in the observer. This will be true on create and false on an update.