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Editorial Team
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Asked: 2026-05-31T12:45:22+00:00

In rails 3.2.1, I have a model: class Player < ActiveRecord::Base attr_accessor :password attr_accessible

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In rails 3.2.1, I have a model:

class Player < ActiveRecord::Base
  attr_accessor :password
  attr_accessible :email, :password
  attr_accessible :email, :password, :confirmed, :as => :admin
end

I keep getting a ActiveModel::MassAssignmentSecurity::Error for the following:

params[:player]
#=> {:email => "some@email.com", :password => "12345", :confirmed => true)
player = Player.new(params[:player])

Why is this happening when all I want it to do is ignore the :confirmed attribute and move on with it’s business. The documentation makes it seem like I should be able to do that, but I keep getting this exception and it’s really getting to me because either I am doing it wrong or the docs are wrong.

I’d love any help with this.

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1 Answer

  1. Editorial Team

    Comment out this line in development.rb:

    config.active_record.mass_assignment_sanitizer = :strict

    The strict setting will raise an error and the default setting will just log a warning.

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