RSS Feed

Here’s the code for the behavior I’m using to help generate the RSS feed for this Web site:


class XMLFeedBehavior < Behavior::Base

  register "XML Feed"

  description %{
    Modifies page headers so that the content type is set to text/xml.
    Adds the <r:escape_html /> tag.
  }

  def page_headers
    super.merge('Content-Type' => 'text/xml')
  end

  define_tags do
    tag "escape_html" do |tag|
      CGI.escapeHTML(tag.expand)
    end
  end

end

And the code from the page part:


<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <channel>
    <title>Fun With Radiant</title>
    <link>http://radiantcms.org/</link>
    <language>en-us</language>
    <ttl>40</ttl>
    <description>The main blog for Radiant CMS</description>
<r:find url="/blog/">
<r:children:each limit="10">
    <item>
      <title><r:title /></title>
      <description><r:escape_html><r:content /></r:escape_html></description>
      <pubDate><r:date format="%a, %d %b %Y %H:%M:%S GMT" /></pubDate>
      <guid>http://radiantcms.org<r:url /></guid>
      <link>http://radiantcms.org<r:url /></link>
    </item>
</r:children:each>
</r:find>
  </channel>
</rss>

Pretty nifty, eh?