#Post_controller
::feed()
def feed
require "rss"
articles = Article.find :all, :order => 'post_date DESC', :lim
IT => 10
feed = RSS::Maker.make("2.0") do |maker|
maker.channel.title = "Gang of Techno
LOGy"
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.p
ubDate(event.created_at.to_s(:r
fc822))
xml.guid(event.id)
xml.link(”http://…
..#{event.id}”)
end
end
end
end
到这一步就算完了,没有下文了,其实不对。到这一步,访问http://localhost:3000/post/feed仍然是出来的html的界面。g之,找到介绍:rails 2.0会根据不同的格式对模板进行渲染。这段代码放在/views/post/feed.rhtml中是没有用的,需要放在/views/post/feed.atom.builder中,并且需要通过http://localhost:3000/post/feed/123.atom(这里123没有什么实际意义 随便抓的一个),或是http://localhost:3000/post/feed?format=atom才能正确地按rss+xml输出。