Limit subfolders depth

[stefanKBL]

Hi, is there a way to limit the subfolders creation depth. eg

• root
  • thenFolderA
  • thenFolderB
  • ...
    But do not accept creation under FolderA.
    I try to use bind in backend constructor with mkdir.pre, but not able to check if parent dir is root or not.
    Thanks

[nao-pon]

You can verify that the parent directory is root as follows:

$target = $volume->file($args['target']);
if (!empty($target['phash']) && strpos($target['phash'], $volume->id()) === 0) {
    // not root
    $parent = $volume->file($args['phash']);
} else {
    // is root
}