删除关卡问题

app/controllers/challenges_controller.rb

@@ -313,19 +313,27 @@ class ChallengesController < ApplicationController
       end
     rescue => e
       tip_exception("上移失败： #{e.message}")
+      raise ActiveRecord::Rollback
     end
 
   end
 
   def destroy
     next_challenges = @shixun.challenges.where("position > #{@challenge.position}")
-    next_challenges.update_all("position = position - 1")
-    # Todo: 实训修改后,关卡需要重置
-    # shixun_modify_status_without_publish(@shixun, 1)
-    @challenge.destroy
-    # 关卡位置被删除，需要修改脚本
-    script = modify_shixun_script @shixun, @shixun.evaluate_script
-    @shixun.shixun_info.update_column(:evaluate_script, script)
+    begin
+      ActiveRecord::Base.transaction do
+        next_challenges.update_all("position = position - 1")
+        # Todo: 实训修改后,关卡需要重置
+        # shixun_modify_status_without_publish(@shixun, 1)
+        @challenge.destroy
+        # 关卡位置被删除，需要修改脚本
+        script = modify_shixun_script @shixun, @shixun.evaluate_script
+        @shixun.shixun_info.update_column(:evaluate_script, script)
+      end
+    rescue => e
+      tip_exception("删除关卡失败： #{e.message}")
+      raise ActiveRecord::Rollback
+    end
   end