lib/mongoid/contextual/mongo.rb in mongoid-3.0.17 vs lib/mongoid/contextual/mongo.rb in mongoid-3.0.18

@@ -217,9 +217,11 @@
         criteria.send(:merge_type_selection)
         @query = collection.find(criteria.selector)
         apply_options
       end
 
+      delegate(:database_field_name, to: :@klass)
+
       # Get the last document in the database for the criteria's selector.
       #
       # @example Get the last document.
       #   context.last
       #