module NiceParam
  module InstanceMethods
    def to_param
      "#{id}-#{title.downcase.
        gsub("å","aa").
        gsub("æ","ae").
        gsub("ø","oe").
        gsub(/[^[:alnum:]]/,'-')}".
        gsub(/-{2,}/,'-')
    end
  end
  def self.included(receiver)
    receiver.send :include, InstanceMethods
  end
end