./lib/jbuilder_template.rb in jbuilder-0.8.1 vs ./lib/jbuilder_template.rb in jbuilder-0.8.2

@@ -7,12 +7,12 @@
   def partial!(options, locals = {})
     case options
     when ::Hash
       options[:locals] ||= {}
       options[:locals].merge!(:json => self)
-      @context.render(options)
-    else
-      @context.render(options, locals.merge(:json => self))
+      @context.render(options.reverse_merge(:formats => [:json]))
+    else # String
+      @context.render(:partial => options, :locals => locals.merge(:json => self), :formats => [:json])
     end
   end
 
   # Caches the json constructed within the block passed. Has the same signature as the `cache` helper
   # method in `ActionView::Helpers::CacheHelper` and so can be used in the same way.