public function clearImageCache($deleteOriginals = false)
 {
     if (!$this->getId()) {
         return;
     }
     $cached = glob(aMediaItemTable::getDirectory() . DIRECTORY_SEPARATOR . $this->getSlug() . ".*");
     foreach ($cached as $file) {
         if (!$deleteOriginals) {
             if (strpos($file, ".original.") !== false) {
                 continue;
             }
         }
         unlink($file);
     }
 }
 protected function getDirectory()
 {
     return aMediaItemTable::getDirectory();
 }