lib/active_median/model.rb in active_median-0.2.7 vs lib/active_median/model.rb in active_median-0.2.8

@@ -65,10 +65,10 @@
         else
           raise "Connection adapter not supported: #{connection.adapter_name}"
         end
 
       # same as average
-      relation = relation.unscope(:order).distinct!(false) if relation.group_values.empty?
+      relation = relation.unscope(:order).distinct!(false) if group_values.empty?
 
       result = connection.select_all(relation.to_sql)
 
       # typecast
       rows = []