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How to limit users to one vote per IP address | kev.in

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URL: http://kev.in/2007/08/27/de-tangling-attr_reader-attr_writer-and-attr_accessor-from-attr_protected-attr_accessible-part-1.html

Tags: ruby_tips

URL: http://kev.in/2008/01/18/how-to-limit-users-to-one-vote-per-ip-address.html