Object auth for ad_banner

app/controllers/admin/module_apps_new_interface_controller.rb

@@ -37,8 +37,9 @@ class Admin::ModuleAppsNewInterfaceController < ApplicationController
 
   protected
   def update_setting_by_params
+    user_sat = []
     ma = ModuleApp.find params[:module_app][:id]
-    user_sat = User.find params[:users].keys
+    user_sat = User.find params[:users].keys if params.has_key? :users
     users_to_new = user_sat - ma.managing_users
     users_to_remove = ma.managing_users - user_sat