Merge branch 'fix_dspace_metadata'

app/services/learning_object_publisher.rb

@@ -34,14 +34,15 @@ class LearningObjectPublisher
   end
 
   def update_dspace(object)
-    item = @dspace.items.find(id: object.id_dspace)
+    metadata = []
     dspace_metadata_mapper(object).each do |key, value|
       next if value.blank?
-      value = [value] if value.is_a? String
+      value = [value] unless value.is_a? Array
       value.each do |v|
-        item.add_metadata(key, v, object.language.try(:code) || 'pt') unless v.blank?
+        metadata << { 'key' => key, 'value' => v, 'language' => object.language.try(:code) || 'pt' } unless v.blank?
       end
     end
+    @dspace.items.add_metadata(metadata, id: object.id_dspace) unless metadata.empty?
   end
 
   private