Mass artist controller refactoring

app/models/music/artist.rb

@@ -3,4 +3,14 @@ class Artist < ActiveRecord::Base
   has_many :artist_links, :dependent => :destroy
   has_many :artist_aliases, :dependent => :destroy
   has_many :tracks, :through => :track_artists
+  
+  after_initialize :prepare_description
+  
+  def status_str
+    %w(loading ok fail)[self.status]
+  end
+  
+  def prepare_description
+    self.desc.gsub! /[\[<].*?[\]>]/, ''
+  end
 end

app/models/music/track.rb

@@ -2,4 +2,16 @@ class Track < ActiveRecord::Base
   belongs_to :album
   has_many :track_artists
   has_many :artists, :through => :track_artists
+  @duration
+  
+  def duration
+    if self.length
+      time = self.length
+      time_m = (time / 60).floor
+      time_s = time - time_m * 60
+      time_m.to_s + ':' + (time_s < 10 ? '0' : '') + time_s.to_s
+    else
+      '0:00'
+    end
+  end
 end