Determine if ActiveRecord Object is New

An ActiveRecord object lifecycle:

1.new record

item = Item.newitem.new_record? #=> true

2.persisted

item.saveitem.persisted? #=> true

3.changed

item.name = "other"item.changed? #=> true

4.destroyed

item.destroyitem.destroyed? #=> true

ruby-on-rails activerecord

#new_record? does just that:

object.new_record?

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