2 * Implements hook_file_validate().
4 function {{ machine_name }}_file_validate(Drupal\file\FileInterface $file) {
7 if (!$file->getFilename()) {
8 $errors[] = t("The file's name is empty. Please give a name to the file.");
10 if (strlen($file->getFilename()) > 255) {
11 $errors[] = t("The file's name exceeds the 255 characters limit. Please rename the file and try again.");