Gdn::userMetaModel PHP Method

    public static function userMetaModel()
    {
        static $UserMetaModel = null;
        if (is_null($UserMetaModel)) {
            $UserMetaModel = new UserMetaModel();
        }
        return $UserMetaModel;
    }

 public function profileController_usernameMeta_handler($sender, $args)
 {
     // get all fields since that is better for caching!
     $profileFields = Gdn::userMetaModel()->getUserMeta($sender->User->UserID, 'Profile.%', 'Profile.');
     $nickname = $profileFields['Profile.' . c('Nickname.Fieldname')];
     if ($nickname) {
         echo '<span class="Nickname">(a.k.a. ' . $nickname . ')</span>';
     }
 }