Basic setting playlist

app/assets/javascripts/player.coffee

@@ -187,6 +187,25 @@ class window.Player
     if _session.getUser().lastfm_username
       _session.query '/lastfm/scrobble?r=' +Math.random(), track
     false
+  
+  emptyPlaylist: ->
+    $('.playlist li').remove()
+    $('#jplayer').jPlayer 'clearMedia'
+    $('.player .now-playing').text 'Add some music to playlist'
+    $('.player .loaded, .player .played').width 0
+    false
+  
+  setPlaylist: (data) ->
+    this.emptyPlaylist()
+    tracks = []
+    for item in data.playlist_items
+      tracks.push
+        id: item.track.id
+        name: item.track.name
+        artist: item.track.artists[0].name
+        length: item.track.length
+    this.addTracks tracks
+    false
 
 
 # Player Controls
@@ -216,10 +235,7 @@ $('.repeat, .shuffle').live 'click', ->
 
 $('.do_empty').live 'click', ->
   if confirm('Are you sure?')
-    $('.playlist li').remove()
-    $('#jplayer').jPlayer 'clearMedia'
-    $('.player .now-playing').text 'Add some music to playlist'
-    $('.player .loaded, .player .played').width 0
+    _player.emptyPlaylist()
   false
 
 # Playlist Actions
@@ -267,3 +283,11 @@ $('.s-add').live 'click', ->
       _player.addTracks [item]
       return false
   false
+
+$('.set-playlist').live 'click', ->
+  _search.showSpinner()
+  $.get "/playlist/#{$(this).data('playlist-id')}", (playlist) ->
+    _player.setPlaylist playlist
+    _search.hideSpinner()
+    false
+  false

app/controllers/playlist_controller.rb

@@ -0,0 +1,6 @@
+class PlaylistController < ApplicationController
+  def data
+    @playlist = Playlist.find_by_id(params[:id])
+    render json: @playlist, include: { playlist_items: { include: { track: { include: { artists: {} }}}}}
+  end
+end

app/models/beathaven/playlist.rb

@@ -1,4 +1,5 @@
 class Playlist < ActiveRecord::Base
   belongs_to :user
+  belongs_to :artist
   has_many :playlist_items
 end

app/models/music/artist.rb

@@ -3,6 +3,7 @@ class Artist < ActiveRecord::Base
   has_many :artist_links, :dependent => :destroy
   has_many :artist_aliases, :dependent => :destroy
   has_many :tracks, :through => :track_artists
+  has_many :playlists
   
   after_initialize :prepare_description
   

app/models/music/track.rb

@@ -2,7 +2,7 @@ class Track < ActiveRecord::Base
   belongs_to :album
   has_many :track_artists
   has_many :artists, :through => :track_artists
-  @duration
+  has_many :playlist_items
   
   def duration
     if self.length

app/views/artist/_page.html.haml

@@ -11,29 +11,31 @@
     %p= @artist.desc.html_safe unless @artist.desc.nil?
     - unless @artist.artist_links.empty?
       .service-icons
-        %a.foreign-link{ :href => "http://last.fm/artist/#{@artist.name.gsub(" ", "+")}", :target => '_blank' }
+        %a.foreign-link{ href: "http://last.fm/artist/#{@artist.name.gsub(" ", "+")}", target: '_blank' }
           = image_tag 'services/lastfm.ico'
         - @artist.artist_links.each do |service|
           - if ['wikipedia', 'microblog', 'official_homepage', 'social_network', 'youtube'].include?(service.service)
-            %a.foreign-link{ :href => service.url, :target => '_blank' }
+            %a.foreign-link{ href: service.url, target: '_blank' }
               = image_tag 'services/'+service.service+(service.service == 'official_homepage' ? '.png' : '.ico')
 
-.row
-  .span7.offset4
-    %h3 Playlists
-    %table.zebra-striped
-      %tr
-        %td
-          %a{ href: "" } Last.fm TOP
+- unless @artist.playlists.empty?
+  .row
+    .span7.offset4
+      %h3 Playlists
+      %table.zebra-striped
+        %tr
+          - @artist.playlists.each do |playlist|
+            %td
+              %a.set-playlist{ href: "", 'data-playlist-id' => playlist.id }= playlist.name
 
 - @artist.albums.each do |album|
   .row.album
     .span4.columns.art
-      %img{ :src => album.pic_url }
+      %img{ src: album.pic_url }
       .button-container
-        %a.btn.add-album{ :'data-album-id' => album.id }= I18n.t 'player.add'
+        %a.btn.add-album{ 'data-album-id' => album.id }= I18n.t 'player.add'
     .span7.columns.tracks
-      %h3{ :'data-album-id' => album.id }
+      %h3{ 'data-album-id' => album.id }
         = album.name
         %small= " ("+album.year.to_s+")"
       %table.zebra-striped.tracklist
@@ -42,4 +44,4 @@
             %td.song-title= track.name
             %td.song-duration
               .s-duration= (track.duration != '0:00' ? track.duration : ' '.html_safe)
-              %span.label.success.s-add{ :'data-album-id' => album.id, :'data-id' => track.id }= I18n.t 'player.add_one'
+              %span.label.success.s-add{ 'data-album-id' => album.id, 'data-id' => track.id }= I18n.t 'player.add_one'

config/routes.rb

@@ -15,6 +15,8 @@ Beathaven::Application.routes.draw do
   match 'track/update_length' => 'track#update_length'
   match 'track/report' => 'track#report_unavailable'
   
+  match 'playlist/(:id)' => 'playlist#data'
+  
   match 'settings' => 'user#settings'
   
   match 'artist/autocomplete' => 'last_fm#autocomplete'

db/migrate/20111126142207_add_artist_to_playlists.rb

@@ -0,0 +1,5 @@
+class AddArtistToPlaylists < ActiveRecord::Migration
+  def change
+    add_column :playlists, :artist_id, :integer
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20111012064322) do
+ActiveRecord::Schema.define(:version => 20111126142207) do
 
   create_table "album_formats", :force => true do |t|
     t.integer "album_id"
@@ -155,6 +155,7 @@ ActiveRecord::Schema.define(:version => 20111012064322) do
     t.string   "name"
     t.datetime "created_at"
     t.datetime "updated_at"
+    t.integer  "artist_id"
   end
 
   create_table "release_formats", :force => true do |t|