add #387 RSSフィード作成

必要なタグがわからなかったので、すぐ出せる情報のみでRSSフィードページを作成しました

Author: odlovesq

app/controllers/podcasts_controller.rb

@@ -14,4 +14,12 @@ def show
     @content  = Kramdown::Document.new(@episode.content, input: 'GFM').to_html
     @url      = request.url
   end
+
+  def feed
+    @episodes   = Podcast.all.sort_by{|episode| episode.filename.rjust(3, '0')}
+    @domainname = request.base_url
+    respond_to do |format|
+      format.rss { render :layout => false }
+    end
+  end
 end

app/views/podcasts/feed.rss.builder

@@ -0,0 +1,17 @@
+xml.instruct! :xml, :version => "1.0"
+xml.rss :version => "2.0" do
+  xml.channel do
+    xml.title full_title ""
+    xml.description full_description ""
+    xml.link root_url
+
+    @episodes.each do |episode|
+      xml.item do
+        xml.title episode.title
+        xml.description episode.description
+        xml.link @domainname + episode.url + ".mp3"
+        xml.guid({:isPermaLink => "false"}, @domainname + episode.url)
+      end
+    end
+  end
+end

config/routes.rb

@@ -11,6 +11,7 @@
   get "/docs/charter_en",       to: redirect('/charter_en')
   get "/docs/financial-report", to: redirect('/financial-report')
   get "/login",                 to: redirect('/login-8717e64efaf19d7d')
+  get "/podcasts/feed"    => "podcasts#feed"
   get "/charter"          => "docs#show", id: 'charter'
   get "/charter_en"       => "docs#show", id: 'charter_en'
   get "/financial-report" => "docs#show", id: 'financial-report'