Rails - Oct 2007 - Extend ActiveRecord::Base with a public_content_columns()?

Hi all

I have added the following code to my application.rb:

class ActiveRecord::Base
  def public_content_columns
    content_columns.reject{|column| [''created_at'',
''updated_at'',
''lock_version''].include?(column.name)}
  end
end

Sadly the following code in a view...

<% MusicArtist.public_content_columns.each do |column| %>
...

gives me an error message the this method does not exist for
MusicArtist.

Any idea?

Thanks
Josh
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Newbie newbie newbie! Forgot to add a "self." to the method 
definition... :-P
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