重置实训

app/controllers/myshixuns_controller.rb

@@ -22,8 +22,8 @@ class MyshixunsController < ApplicationController
       tip_exception("403", "")
     end
     begin
+      @shixun = Shixun.select(:id, :identifier, :challenges_count).find(@myshixun.shixun_id)
       ActiveRecord::Base.transaction do
-          @shixun = Shixun.select(:id, :identifier, :challenges_count).find(@myshixun.shixun_id)
           @myshixun.destroy!
 
           StudentWork.where(:myshixun_id => @myshixun.id)