Ruby on Rails ActiveRecord::DangerousAttributeError

Posted on 17 August 2009

If you get a Rails exception ActiveRecord::DangerousAttributeError then you'll find it's because one of your attributes is using a name reserved by Active Record. Particularly when the attribute has the name of one of Active Record instance methods.

For me I was using owner_id as a custom foreign key. A quick change to owned_by_id and all was fixed.

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Comments left...

• What version of rails?
  I’m using 2.1.0 on one of my apps and when I used connection_id as a model attribute, I got no such error and had to spend hours figuring it out.

  austin_web_developer at 27 Aug 09 at 03:02

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