#87 Generating RSS Feeds (revised)

curl http://localhost:3000/articles.atom
curl http://localhost:3000/articles.atom | pbcopy

atom_feed do |feed|
  feed.title "Superhero Articles"
  feed.updated @articles.maximum(:updated_at)
  
  @articles.each do |article|
    feed.entry article, published: article.published_at do |entry|
      entry.title article.name
      entry.content article.content
      entry.author do |author|
        author.name article.author
      end
    end
  end
end

<% content_for :head, auto_discovery_link_tag(:atom, articles_url(format: "atom")) %>

<%= link_to image_tag("feed-icon-28x28.png"), articles_url(format: "atom") %>

<%= yield :head %>

xml.instruct! :xml, version: "1.0" 
xml.rss version: "2.0" do
  xml.channel do
    xml.title "Superhero Articles"
    xml.description "From Batman to Superman"
    xml.link articles_url

    @articles.each do |article|
      xml.item do
        xml.title article.name
        xml.description article.content
        xml.pubDate article.published_at.to_s(:rfc822)
        xml.link article_url(article)
        xml.guid article_url(article)
      end
    end
  end
end