Google sitemap files for Rails projects -

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is there easy way create sitemaps file rails projects? dynamic sites (such stack overflow example) there should way dynamically create sitemaps file. way go in ruby and/or rails?

what suggest? there gem out there?

add route towards bottom of config/routes.rb file (more specific routes should listed above it):

map.sitemap '/sitemap.xml', :controller => 'sitemap'

create sitemapcontroller (app/controllers/sitemap_controller):

class sitemapcontroller < applicationcontroller   layout nil    def index     headers['content-type'] = 'application/xml'     last_post = post.last     if stale?(:etag => last_post, :last_modified => last_post.updated_at.utc)       respond_to |format|         format.xml { @posts = post.sitemap } # sitemap named scope       end     end   end end

—as can see, blog, using post model. haml view template (app/views/sitemap/index.xml.haml):

- base_url = "http://#{request.host_with_port}" !!! xml %urlset{:xmlns => "http://www.sitemaps.org/schemas/sitemap/0.9"}   - post in @posts     %url       %loc #{base_url}#{post.permalink}       %lastmod=post.last_modified       %changefreq monthly       %priority 0.5

that's it! can test bringing http://localhost:3000/sitemap.xml (if using mongrel) in browser, or perhaps using curl.

note controller uses stale? method issue http 304 not modified response if there no new posts sinces sitemap last requested.


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