优化代码

app/controllers/challenges_controller.rb

@@ -138,7 +138,7 @@ class ChallengesController < ApplicationController
   # tab 0,nil 过关任务, 1 评测设置, 2 参考答案
   def edit
     @tab = params[:tab].to_i
-    @power = current_user.manager_of_shixun?(@shixun) && @shixun.status == 0
+    @power =  @shixun.status == 0
     challenge_num = Challenge.where(:shixun_id => @shixun).count
     @position = @challenge.position
     @chooses = @challenge.challenge_chooses
@@ -279,9 +279,6 @@ class ChallengesController < ApplicationController
 
   def find_shixun
     @shixun = Shixun.find_by_identifier(params[:shixun_identifier])
-    if !current_user.shixun_permission(@shixun)
-      tip_exception(403, "..")
-    end
   end
 
   # 通用接口