rails制作rss feed代码

　　#Post_controller::feed()

　　def feed

　　require "rss"

　　articles = Article.find :all, :order => 'post_date DESC', :limit => 10

　　feed = RSS::Maker.make("2.0") do |maker|

　　maker.channel.title = "Gang of Technology"

　　maker.channel.description = "Gang of Technology site"

　　maker.channel.link = "http://up-u.com"

　　maker.items.do_sort = true

　　articles.each do |article|

　　item = maker.items.new_item

　　item.link = "http://www.***.com/archives/#{article.id}"

　　item.title = article.title

　　item.date = article.post_date

　　item.description = ""

　　end

　　end

　　send_data feed.to_s, :type => "application/rss+xml", :disposition =>

　　'inline'

　　end

　　#Post_controller::feed

　　def feed

　　@posts=Post.find :all,:limit=>”id desc”

　　end

　　erb模板:

　　xml.instruct!

　　xml.rss(”version”=>”2.0″,

　　“xmlns:dc”=>”http://purl.org/dc/elements/1.1/”) do

　　xml.channel do

　　xml.title “renlu.xu 's blog”

　　xml.link(url_for(:action=>”start”,:only_path=>false))

　　xml.description “My life My love”

　　xml.language “zh_CN”

　　xml.ttl 60

　　for event in @posts do

　　xml.item do

　　xml.title(event.title)

　　xml.description(event.body)

　　xml.pubDate(event.created_at.to_s(:rfc822))

　　xml.guid(event.id)

　　xml.link(”http://…..#{event.id}”)

　　end

　　end

　　end

　　end