model add scope

app/models/product.rb

@@ -129,11 +129,10 @@ class Product < ActiveRecord::Base
     rails_admin do 
         navigation_label '商品管理'
         weight -240
-
+        authenticate_admin_user!
         list do
 
-
-            if Devise.current_admin_user.id==1
+            if current_admin_user.id==1
                 scopes [:inactive]
             end