Determine if ActiveRecord Object is New

Question

How can I check if an ActiveRecord object is new or is already persisted?

Damien · Accepted Answer · 2013-12-07 18:10:09Z

418

An ActiveRecord object lifecycle:

1.new record

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

2.persisted

item.save
item.persisted? #=> true

3.changed

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

4.destroyed

item.destroy
item.destroyed? #=> true

answered Sep 10, 2013 at 22:35

Damien

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1 Comment

I'd like to add item.previously_new_record? and item.previously_persisted? to the list

ndnenkov · Accepted Answer · 2017-04-11 13:59:53Z

317

#new_record? does just that:

object.new_record?

ndnenkov

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answered Oct 20, 2011 at 22:20

John Beynon

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