实训关卡列表问题

app/controllers/challenges_controller.rb

@@ -164,7 +164,7 @@ class ChallengesController < ApplicationController
 
     @challenges = @shixun.challenges.joins(join_sql).select(base_columns).uniq
 
-    @shixun_modify = (@challenges.select{|c| c.status.present? }.size == @challenges.size)
+    @shixun_modify = (@challenges.select{|c| !c.status.nil? }.size == @challenges.size)
 
     logger.info("########shixun_modify：#{@shixun_modify}")
     logger.info("########challenges.size：#{@challenges.size}")