autoloading new flatten son adapter

joaomdmoura · joaomdmoura · commit a0753cb0bcbf · 2015-06-14T03:25:00.000-03:00
diff --git a/lib/active_model/serializer/adapter.rb b/lib/active_model/serializer/adapter.rb
@@ -5,6 +5,7 @@ class Serializer
     class Adapter
       extend ActiveSupport::Autoload
       autoload :Json
+      autoload :FlattenJson
       autoload :Null
       autoload :JsonApi
 
@@ -82,7 +83,7 @@ def meta_key
       end
 
       def root
-        serializer.json_key
+        serializer.json_key.to_sym
       end
 
       def include_meta(json)
