lib/mongoid/relations/cascading/destroy.rb in mongoid-2.2.0 vs lib/mongoid/relations/cascading/destroy.rb in mongoid-2.2.1

@@ -9,10 +9,17 @@
         # objects from the db.
         #
         # @example Perform the cascading destroy.
         #   strategy.cascade
         def cascade
-          relation.to_a.each { |doc| doc.destroy } if relation
+          if relation
+            if relation.is_a?(Enumerable)
+              relation.entries
+              relation.each { |doc| doc.destroy }
+            else
+              relation.destroy
+            end
+          end
         end
       end
     end
   end
 end