On 21 Oct 2008, at 12:58, gnunix wrote:
>
> I have an object called dealer. Dealer has two fields dealer_number
> and sub_dealer_number. It must have 1 OR the other... but not both.
> To validate this I have:
>
Use the Xor operator ( ^ ) ?
Fred
> class Dealer < ActiveRecord::Base
> validate :dealer_id?
>
> private
> def dealer_id?
> if number.blank? && sub_number.blank?
> errors.add_to_base("You must specify either a Dealer Number OR a
> Sub Dealer Number.")
> elsif (number.length > 0) && (sub_number.length > 0)
> errors.add_to_base("You must specify either a Dealer Number OR
> a Sub Dealer Number.")
> end
> end
> end
>
> This looks really messy to me. Is there a better way? Thank you for
> your thoughts.
>
> >
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