在Rails中将HTML添加到我的RSS/Atom提要

class Admin::ContentPublishersController< ApplicationController
  def rss_feed
    @content_publishers = ContentPublisher.all
    render rss: 'content_publishers', content: @content_publishers.map(&:rss_feed).join("\n"), format: 'xml'
  end
end

module ApplicationHelper
  def formatted_rss_feed(content_publishers)
    content = content_publishers.map(&:rss_feed).join("\n")
    link = link_to('#', href: admin_content_publishers_path) + '&rss=1'
    "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<rss version=\"2.0\">\n" + link + "\n" + content + "\n</rss>\n"
  end
end

- content_publishers.each do |cp|
  = formatted_rss_feed cp