xml.instruct! :xml, :version => "1.0"
xml.rss :version => "2.0" do
  xml.channel do
    xml.title BLOG_TITLE
    xml.link blog_posts_url

    for post in @blog_posts
      xml.item do
        xml.title post.title
        xml.description post.teaser
        xml.pubdate post.pubdate.to_s(:rfc822)
        xml.link blog_post_url(post)
        xml.guid blog_post_url(post)
      end
    end
  end
end