add repository method AttributeRepository#find_all_by_learning_object

app/repositories/orient_db/attribute_repository.rb

@@ -8,6 +8,10 @@ module OrientDb
       build_object(result.first)
     end
 
+    def find_all_by_learning_object(learning_object)
+      build_objects get_edges_end("HasAttr", "out", learning_object.id)
+    end
+
     def build_object(args={})
       attribute = nil
       unless args.nil?