示例#1
0
 public static function get_instance()
 {
     if (self::$instance === null) {
         self::$instance = new URE_Task_Queue();
     }
     return self::$instance;
 }
 /**
  *  execute on plugin activation
  */
 function setup()
 {
     $this->lib->make_roles_backup();
     $this->lib->init_ure_caps();
     $task_queue = URE_Task_Queue::get_instance();
     $task_queue->add('on_activation');
 }