http://snippets.dzone.com/posts Wed, 23 Jul 2008 23:43:04 GMT DZone Snippets: resources code http://snippets.dzone.com/posts/show/4967 <code> <br />## config/initializers/string_extensions.rb <br /> <br />require 'unicode' <br /> <br />class String <br /> def to_slug <br /> str = Unicode.normalize_KD(self).gsub(/[^\x00-\x7F]/n,'') <br /> str = str.gsub(/\W+/, '-').gsub(/^-+/,'').gsub(/-+$/,'').downcase <br /> end <br /> <br /> def numeric? <br /> if self =~ /^\d+$/ <br /> self.to_i <br /> elsif self =~ /^\d+([,\.]\d+)?$/ <br /> self.tr(',','.').to_f <br /> else <br /> false <br /> end <br /> end <br />end <br /> <br /> <br />## app/models/article.rb <br /> <br /># string :title <br /># text :body <br /># string :permalink <br />class Article < ActiveRecord::Base <br /> before_save :set_permalink <br /> <br /> # article_path(@article) <br /> # >> /article/5 <br /> # article_path(@article.permalink) <br /> # /article/pink-ferret <br /> def self.find(*args) <br /> if args.first.is_a?(String) and !args.first.numeric? <br /> find_by_permalink(args.shift,*args) or raise ActiveRecord::RecordNotFound <br /> else <br /> super <br /> end <br /> end <br /> <br /> # article_path(@article) <br /> # >> /article/5-pink-ferret <br /> def to_param <br /> "#{id}-#{permalink}" <br /> end <br /> <br /> private <br /> def set_permalink <br /> self.permalink = title.to_slug <br /> end <br />end <br /></code> Wed, 09 Jan 2008 15:13:08 GMT http://snippets.dzone.com/posts/show/4967 jerome ()