lib/bolognese/readers/datacite_reader.rb in bolognese-1.0.9 vs lib/bolognese/readers/datacite_reader.rb in bolognese-1.0.10

@@ -91,11 +91,11 @@
             { "title" => sanitize(r["__content__"]), "titleType" => r["titleType"], "lang" => r["lang"] }.compact
           end
         end
 
         alternate_identifiers = Array.wrap(meta.dig("alternateIdentifiers", "alternateIdentifier")).map do |r|
-          { "alternateIdentifierType" => r["alternateIdentifierType"], "alternateIdentifier" => r["__content__"] }
-        end
+          { "alternateIdentifierType" => r["alternateIdentifierType"], "alternateIdentifier" => r["__content__"].presence }.compact
+        end.compact
         descriptions = Array.wrap(meta.dig("descriptions", "description")).select { |r| r["descriptionType"] != "SeriesInformation" }.map do |r|
           { "description" => sanitize(r["__content__"]), "descriptionType" => r["descriptionType"], "lang" => r["lang"] }.compact
         end
         rights_list = Array.wrap(meta.dig("rightsList", "rights")).map do |r|
           { "rights" => r["__content__"], "rightsUri" => normalize_url(r["rightsURI"]), "lang" => r["lang"] }.compact