/**
  * Recursively creates parent folders
  *
  * @param string $path
  * @return sfAssetFolder
  */
 public static function createFromPath($path)
 {
     $path = self::cleanPath($path);
     list($parent_path, $name) = sfAssetsLibraryTools::splitPath($path);
     if (!($parent_folder = self::retrieveByPath($parent_path))) {
         $parent_folder = self::createFromPath($parent_path);
         $parent_folder->save();
     }
     $folder = new sfAssetFolder();
     $folder->setName($name);
     $folder->setRelativePath($path);
     $folder->insertAsLastChildOf($parent_folder);
     $folder->save();
     return $folder;
 }