lib/mida_vocabulary/vocabularies/schemaorg/musicalbum.rb in mida_vocabulary-0.2 vs lib/mida_vocabulary/vocabularies/schemaorg/musicalbum.rb in mida_vocabulary-0.2.2

@@ -4,16 +4,23 @@
   module SchemaOrg
 
     autoload :MusicPlaylist, 'mida_vocabulary/vocabularies/schemaorg/musicplaylist'
     autoload :CreativeWork, 'mida_vocabulary/vocabularies/schemaorg/creativework'
     autoload :Thing, 'mida_vocabulary/vocabularies/schemaorg/thing'
+    autoload :MusicGroup, 'mida_vocabulary/vocabularies/schemaorg/musicgroup'
 
     # A collection of music tracks.
     class MusicAlbum < Mida::Vocabulary
       itemtype %r{http://schema.org/MusicAlbum}i
       include_vocabulary Mida::SchemaOrg::MusicPlaylist
       include_vocabulary Mida::SchemaOrg::CreativeWork
       include_vocabulary Mida::SchemaOrg::Thing
+
+      # The artist that performed this album or recording.
+      has_many 'byArtist' do
+        extract Mida::SchemaOrg::MusicGroup
+        extract Mida::DataType::Text
+      end
     end
 
   end
 end