VRFS-3459 mixdown ios

ruby/lib/jam_ruby/models/genre_jam_track.rb

@@ -2,6 +2,9 @@ module JamRuby
   class GenreJamTrack < ActiveRecord::Base
 
     self.table_name = 'genres_jam_tracks'
+
+    attr_accessible :jam_track_id, :genre_id
+
     belongs_to :jam_track, class_name: 'JamRuby::JamTrack', inverse_of: :genres_jam_tracks
     belongs_to :genre, class_name: 'JamRuby::Genre', inverse_of: :genres_jam_tracks
   end

ruby/lib/jam_ruby/models/jam_track.rb

@@ -451,7 +451,7 @@ module JamRuby
     end
 
     def mixdowns_for_user(user)
-      JamTrackMixdown.where(user_id:  user.id).where(jam_track_id: self.id)
+      JamTrackMixdown.where(user_id: user.id, jam_track_id: self.id).order('created_at DESC')
     end
 
     def short_plan_code

ruby/lib/jam_ruby/models/jam_track_mixdown.rb

@@ -16,7 +16,7 @@ module JamRuby
     validates :jam_track, presence: true
     validates :settings, presence: true
 
-    validates_uniqueness_of :name, scope: :user_id
+    validates_uniqueness_of :name, scope: :jam_track_id
 
     validate :verify_settings
     validate :verify_max_mixdowns