public function __construct($id, $title, $screens = null, $context = 'advanced', $priority = 'default')
{
parent::__construct($id, $title, $screens, $context, $priority);
add_action('save_post', array($this, 'saveData'));
}
public function add()
{
if (!$this->is_needed()) {
return;
}
parent::add();
}
