arailsdemo 10

为什么80%的码农都做不了架构师？>>>   

Atom Web 订阅

修改我们的 Post Controller index 方法

app/controlllers/posts_controller.rb

class PostsController < ApplicationController
  ...
  def index
    @posts = Post.all

    respond_to do |format|
      format.html
      format.atom
    end
  end
  ...
end

创建要 Atom 的页面

app/views/posts/index.atom.builder

atom_feed do |feed|
  feed.title "aRailsDemo"
  feed.subtitle "Building This Site"
  feed.updated @posts.first.created_at
  
  for post in @posts
    feed.entry(post, :url => post_url(post.sequence)) do |entry|
      entry.title post.title
      entry.content post.description, :type => 'html'
      entry.author do |author|
        author.name "aRailsDemo"
      end
    end
  end
end

布局渲染/侧边栏提供链接

app/views/layouts/application.html.haml 和 app/views/shared/_sidebar.html.haml

# application.html.haml
...
  ...
    #container
      ...
      #sidebar
        #innerSidebar
          = render 'shared/sidebar'
___________________________________

# _sidebar.html.haml

%p.feedButton= link_to "Subscribe", "http://feeds.feedburner.com/arailsdemo"

auto_discovery_link_tag 辅助方法

如果我们使用 auto_discovery_link_tag， 很多‘浏览器’ 就能够知道我们是在浏览订阅信息。

app/views/layouts/application.html.haml

!!!
%html(lang="en")
  %head
    ...
    = auto_discovery_link_tag :atom, "http://feeds.feedburner.com/arailsdemo"

转载于:https://my.oschina.net/kelby/blog/193118