“Ruby on Rails sitemap plugin”

rails, Uncategorized

I have created a plugin named Dynamic Sitemaps that enables you to easily create flexible, dynamic sitemaps in Ruby on Rails. It generates sitemaps in the sitemaps.org standard which is supported by several crawlers including Google, Bing, and Yahoo. If the sitemap has more than 50.000 urls – or whatever you set it to using per_page – the plugin will automatically split the sitemap into smaller chunks and generate a sitemap index as specified at sitemaps.org.

To install in Rails 3:

rails plugin install git@github.com:lassebunk/dynamic_sitemaps.git

In config/initializers/sitemap.rb:

Sitemap::Map.draw do

  # default page size is 50.000 which is the specified maximum at http://sitemaps.org.
  per_page 10

  url root_url, :last_mod => DateTime.now, :change_freq => 'daily', :priority => 1


  Product.all.each do |product|
    url product_url(product), :last_mod => product.updated_at, :change_freq => 'monthly', :priority => 0.8


  autogenerate  :products, :categories,
                :last_mod => :updated_at,
                :change_freq => 'monthly',
                :priority => 0.8


  autogenerate  :users,
                :last_mod => :updated_at,
                :change_freq => lambda { |user| user.very_active? ? 'weekly' : 'monthly' },
                :priority => 0.5


In config/routes.rb:

match 'sitemap' => 'sitemaps#sitemap'

You are now able to access your sitemap at http://yourdomain.com/sitemap.xml.

In public/robots.txt:

Sitemap: http://yourdomain.com/sitemap.xml

And at last submit it to Google, Bing, and Yahoo.

Check out the plugin at GitHub.


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