/**
  * Rename a file/folder
  *
  * @param  string $file
  * @param  string $newName
  * @param  boolean $isFolder
  * @return array result
  */
 public function renameFile($file, $newName, $isFolder)
 {
     $src = basename($file);
     $newFile = substr($file, 0, -1 * strlen($src)) . $newName;
     $success = tx_em_Tools::renameFile($file, $newFile);
     return array('success' => $success, 'oldFile' => $file, 'newFile' => $newFile, 'newFilename' => basename($newFile));
 }