Add latest added tracks list on the home page

app/controllers/home_controller.rb

@@ -1,5 +1,6 @@
 class HomeController < ApplicationController
   def index
     @playlists = Playlist.all
+    @tracks = Track.latest
   end
 end

app/models/track.rb

@@ -15,4 +15,8 @@ class Track < ActiveRecord::Base
     end
     save!
   end
+
+  def self.latest
+    Track.order('created_at DESC')
+  end
 end

app/views/home/index.html.haml

@@ -2,3 +2,6 @@
 %ul
   - @playlists.each do |p|
     %li= p.name
+%ul
+  - @tracks.each do |t|
+    %li= t.name