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Home/ Questions/Q 6904553
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Editorial Team
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Editorial Team
Asked: May 27, 20262026-05-27T08:04:32+00:00 2026-05-27T08:04:32+00:00

I have a model that looks like this – class Car < ActiveRecord::Base validates

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I have a model that looks like this –

class Car < ActiveRecord::Base
  validates :name,:presence =>true
end

Can I set it up so that the car’s name is not required when preforming a create action but it is required when doing an ‘edit’ action?

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  1. Editorial Team
    Editorial Team
    2026-05-27T08:04:33+00:00Added an answer on May 27, 2026 at 8:04 am

    Yup, that’s possible:

    class Car < ActiveRecord::Base
      validates :name, presence: true, on: :update
    end
    

    Might have a look at the Active Record Validations and Callbacks Guide.

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