lib/mongoid/factory.rb in mongoid-2.0.0.rc.7 vs lib/mongoid/factory.rb in mongoid-2.0.0.rc.8

@@ -12,9 +12,9 @@
     # klass: The class to instantiate from if _type is not present.
     # attributes: The +Document+ attributes.
     def self.build(klass, attributes)
       attrs = {}.merge(attributes)
       type = attrs["_type"]
-      type ? type.constantize.instantiate(attrs) : klass.instantiate(attrs)
+      type.present? ? type.constantize.instantiate(attrs) : klass.instantiate(attrs)
     end
   end
 end