@object.class will return Ransack::Search instead of mongoid criteria

Author: pencilcheck

lib/active_admin/mongoid/filters/formtastic_addons.rb

@@ -4,7 +4,7 @@ module FormtasticAddons
 
       # The resource class, unwrapped from Ransack
       def klass
-        @object.klass
+        @object.object.klass
       end
 
     end