/**
  * Construct a new Pagefile
  *
  * @param Pagefiles $pagefiles 
  * @param string $filename Full path and filename to this pagefile
  *
  */
 public function __construct(Pagefiles $pagefiles, $filename)
 {
     if (!$pagefiles instanceof Pageimages) {
         throw new WireException("Pageimage::__construct requires instance of Pageimages");
     }
     $this->pageimages = $pagefiles;
     parent::__construct($pagefiles, $filename);
 }