Question

The #new_record? function determines if a record has been saved. But it is always false in the after_save hook. Is there a way to determine whether the record is a newly created record or an old one from update?

I’m hoping not to use another callback such as before_create to set a flag in the model or require another query into the db.

Any advice is appreciated.

Edit: Need to determine it in after_save hook, and for my particular use case, there is no updated_at or updated_on timestamp

Answer 1

I was looking to use this for an after_save callback.

A simpler solution is to use id_changed? (since it won’t change on update) or even created_at_changed? if timestamp columns are present.

Update: As @mitsy points out, if this check is needed outside of callbacks then use id_previously_changed?. See docs.