Validate URIs by Pinging the Server

canadaduane (Duane Johnson) — Fri, 14 Apr 2006 02:12:38 GMT



require 'open-uri'



class ActiveRecord::Base

  def self.validates_uri_existence_of(*attr_names)

    configuration = { :message => "is not a valid web address" }

    configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)

    validates_each attr_names do |m, a, v|

      begin

        # Try to open the URI

        open v

      rescue

        # Report the error if it throws an exception

        m.errors.add(a, configuration[:message])

      end

    end

  end

end

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Validate URIs by Pinging the Server