Rails - Apr 2007 - ActiveRecord: removing validations or callbacks on a subclass

Often a parent class has validations (or callbacks or associations)
which I don''t want the subclass to have.  Is there any simple way to
remove these?


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On 4/30/07, S. Robert James
<srobertjames-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Often a parent class has validations (or callbacks or associations)
> which I don''t want the subclass to have.  Is there any simple way
to
> remove these?
Not really.  Just don''t add them.  If you have 5 sub classes, and only
3 of them need the validations or callbacks, set it up in a special
mixin:

module PickyCallbacks
  def self.included(base)
    base.after_save :foo
    base.validates_format_of :email, :with => /.../
  end
end

-- 
Rick Olson
http://lighthouseapp.com
http://weblog.techno-weenie.net
http://mephistoblog.com

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