lib/alba/serializer.rb in alba-0.11.1 vs lib/alba/serializer.rb in alba-0.12.0

@@ -21,10 +21,12 @@
       def initialize(resource)
         @resource = resource
         @hash = resource.serializable_hash
         @hash = {key.to_sym => @hash} if key
         # @hash is either Hash or Array
-        @hash.is_a?(Hash) ? @hash.merge!(metadata.to_h) : @hash << metadata
+        unless metadata.empty?
+          @hash.is_a?(Hash) ? @hash.merge!(metadata.to_h) : @hash << metadata
+        end
       end
 
       # Use real encoder to actually serialize to JSON
       #
       # @return [String] JSON string