[Radiant] Google sitemap.xml support + ActionView helpers in behaviors?

[Jay Levitt]

Xavier wrote:
> Hi folks,
> 
> I added a tiny extra chunk of code in my SiteController to generate a
> sitemap.xml file (
> http://www.google.com/support/webmasters/bin/topic.py?topic=8467 )
> from the list of all published pages.
> 
> If there's any wider interest for such a feature, I could package it
> as a Behavior.

Definitely.  I just did something similar, already set up as a behavior, 
but it's hardcoded to my site at the moment, while I tried to figure out 
how to get at the full URL..

--

   class SiteMapBehavior < Behavior::Base

     register "Sitemap"

     description %{
       Creates a Google sitemap.
     }

     define_tags do
       tag "sitemap" do |tag|
         root = Page.find_by_parent_id(nil)
         sitemap_header
         sitemap_for(root)
         sitemap_footer
       end
     end

   private

     def sitemap_for(page)
       sitemap_url(page.url, page.published_at)

       page.children.each do |child|
         if child.published? and not child.virtual?
           sitemap_for(child)
         end
       end
     end

     def sitemap_header
       @sitemap = '<?xml version="1.0" encoding="UTF-8"?>' + "\n" +
         '<urlset xmlns="http://www.google.com/schemas/sitemap/0.84">' + 
"\n"

       @sitemap << DummyController.new(self).url_for("/testing")
     end

     def sitemap_footer
           @sitemap << "</urlset>"
     end

     def sitemap_url(url, published_at)
       @sitemap << "<url>\n"

       full_url = "http://www.wellesleycarriagehouse.com#{url}"
       @sitemap << " <loc>#{full_url}</loc>\n"

       if published_at
         pub_date = published_at.strftime("%Y-%m-%d")
         @sitemap << " <lastmod>#{pub_date}</lastmod>\n"
       end

       @sitemap << "</url>\n"
     end
   end