DZone Snippets: seo code

Make your model play nice with SEO

jerome () — Wed, 09 Jan 2008 15:13:08 GMT



## config/initializers/string_extensions.rb



require 'unicode'



class String

  def to_slug

    str = Unicode.normalize_KD(self).gsub(/[^\x00-\x7F]/n,'')

    str = str.gsub(/\W+/, '-').gsub(/^-+/,'').gsub(/-+$/,'').downcase

  end



  def numeric?

    if self =~ /^\d+$/

      self.to_i

    elsif self =~ /^\d+([,\.]\d+)?$/

      self.tr(',','.').to_f

    else

      false

    end

  end

end





## app/models/article.rb



# string :title

# text   :body

# string :permalink

class Article < ActiveRecord::Base

  before_save :set_permalink



  # article_path(@article)

  # >> /article/5

  # article_path(@article.permalink)

  # /article/pink-ferret

  def self.find(*args)

    if args.first.is_a?(String) and !args.first.numeric?

      find_by_permalink(args.shift,*args) or raise ActiveRecord::RecordNotFound

    else

      super

    end

  end



  # article_path(@article)

  # >> /article/5-pink-ferret

  def to_param

    "#{id}-#{permalink}"

  end



  private

  def set_permalink

    self.permalink = title.to_slug

  end

end

Create strings for SEO-friendly URLs

labuschin (Martin Labuschin) — Thu, 27 Sep 2007 11:53:58 GMT

this method returns string, which is perfect for SEO-friendly URLs.

features:
- converts every improper character to a hyphen
- returns a lowercase string

I POSTED AN EVEN BETTER METHOD ON MY BLOG: http://tinyurl.com/2vurbq



def create_callname (title)

	title.downcase.gsub(/[^a-z0-9]+/i, '-')

end

Google PageRank Ruby Checker

sevkin (Vsevolod Balashov) — Mon, 15 Jan 2007 15:59:31 GMT



#!/usr/bin/env ruby

# -*- coding: utf-8 -*-

# $Id: google-pr.rb,v b205c14e4ef5 2007-01-15 13:53 +0300 $

# (C) 2006-2007 under terms of LGPL v2.1 

# by Vsevolod S. Balashov 

# based on 3rd party code snippets (see comments)



require 'uri'

require 'open-uri'



module SEO



  # http://blog.outer-court.com/archive/2004_06_27_index.html#108834386239051706

  class GooglePR



    def initialize(uri)

      @uri = uri

    end



    M=0x100000000 # modulo for unsigned int 32bit(4byte)



    def m1(a,b,c,d)

      (((a+(M-b)+(M-c))%M)^(d%M))%M # mix/power mod

    end



    def i2c(i)

      [i&0xff, i>>8&0xff, i>>16&0xff, i>>24&0xff]

    end



    def c2i(s,k=0)

      ((s[k+3].to_i*0x100+s[k+2].to_i)*0x100+s[k+1].to_i)*0x100+s[k].to_i

    end



    def mix(a,b,c)

      a = a%M; b = b%M; c = c%M

      a = m1(a,b,c, c >> 13); b = m1(b,c,a, a <<  8); c = m1(c,a,b, b >> 13)

      a = m1(a,b,c, c >> 12); b = m1(b,c,a, a << 16); c = m1(c,a,b, b >>  5)

      a = m1(a,b,c, c >>  3); b = m1(b,c,a, a << 10); c = m1(c,a,b, b >> 15)

      [a, b, c]

    end



    def old_cn(iurl = 'info:' + @uri)

      a = 0x9E3779B9; b = 0x9E3779B9; c = 0xE6359A60

      len = iurl.size 

      k = 0

      while (len >= k + 12) do

        a += c2i(iurl,k); b += c2i(iurl,k+4); c += c2i(iurl,k+8)

        a, b, c = mix(a, b, c)

        k = k + 12

      end

      a += c2i(iurl,k); b += c2i(iurl,k+4); c += (c2i(iurl,k+8) << 8) + len

      a,b,c = mix(a,b,c)

      return c

    end



    def cn

      ch = old_cn

      ch = ((ch/7) << 2) | ((ch-(ch/13).floor*13)&7)

      new_url = []

      20.times { i2c(ch).each { |i| new_url << i }; ch -= 9 }

      ('6' + old_cn(new_url).to_s).to_i

    end



    def request_uri

      # http://www.bigbold.com/snippets/posts/show/1260 + _ -> %5F

      "http://toolbarqueries.google.com/search?client=navclient-auto&hl=en&ch=#{cn}&ie=UTF-8&oe=UTF-8&features=Rank&q=info:#{URI.escape(@uri, /[^-.!~*'()a-zA-Z\d]/)}"

    end

 

    def page_rank(uri = @uri)

      @uri = uri if uri != @uri

      open(request_uri) { |f| return $1.to_i if f.string =~ /Rank_1:\d:(\d+)/ }

      nil

    end



    private :m1, :i2c, :c2i, :mix, :old_cn

    attr_accessor :uri

  end



end



if __FILE__ == $0 and 1 == ARGV.size

  puts SEO::GooglePR.new(ARGV[0]).page_rank

end

geourl

ovhaag (Oliver Haag) — Sat, 16 Sep 2006 19:36:02 GMT

// add website to geourl
// long desciption on http://geourl.org/add.html



#1 get coordinates



#2 add meta tags to head







#3 ping http://geourl.org/ping/

// lots of backlinks
// but no change in pagerank (in 3 month)

301 example.com to www.example.com

Syam (Syam Kumar R.) — Sat, 23 Apr 2005 18:01:08 GMT

RewriteEngine On



RewriteCond %{HTTP_HOST} !^(.*)\.example\.com$ [NC]

RewriteRule ^(.*)$ http://www.example.com/$1 [R=301,L]