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#1305 ✓resolved
Chris Elledge

has_one dependent nullify deletes associated object on change

Reported by Chris Elledge | October 30th, 2008 @ 09:36 PM | in 2.x

Using Rails 2.1.1

class User < ActiveRecord::Base
  has_one :device, :dependent => :nullify
u = User.find(1)
u.device = Device.find(1)
u.device =
  ActiveRecord::RecordNotFound: Couldn't find Device with ID=1

From the description of :dependent => :nullify it doesn't sound like it should be deleting the device that was previously assigned. It doesn't do this if :dependent is not set.

Why should :dependent => :nullify delete objects like this when the default setting doesn't?

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