public function display_tablenav($which)
 {
     if ('top' == $which) {
         $_SERVER['REQUEST_URI'] = $this->wp->removeQueryArgument('_wp_http_referer', $_SERVER['REQUEST_URI']);
     }
     parent::display_tablenav($which);
 }
 /**
  * Retrieve user meta field for current logged in user
  *
  * @param string $key
  * @return string
  */
 protected function getCurrentUserMeta($key)
 {
     return $this->wp->getUserMeta($this->wp->getCurrentUserId(), $key, true);
 }
 protected function defineConstants()
 {
     defined('WP_DB_PREFIX') or define('WP_DB_PREFIX', $this->wp->getTablePrefix());
     defined('WPT_DB_PREFIX') or define('WPT_DB_PREFIX', WP_DB_PREFIX . 't_');
     defined('DB_TYPE') or define('DB_TYPE', 'mysql');
 }