Respond to a file that has been copied.
Drupal\file\File $file: The newly copied file entity.
Drupal\file\File $source: The original file before the copy.
Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.
function hook_file_copy(Drupal\file\File $file, Drupal\file\File $source) {
$file_user = user_load($file->uid);
// Make sure that the file name starts with the owner's user name.
if (strpos($file->filename, $file_user->name) !== 0) {
$file->filename = $file_user->name . '_' . $file->filename;
$file
->save();
watchdog('file', t('Copied file %source has been renamed to %destination', array(
'%source' => $source->filename,
'%destination' => $file->filename,
)));
}
}