hook_file_validate(Drupal\file\FileInterface $file)
Check that files meet a given criteria.
This hook lets modules perform additional validation on files. They're able to report a failure by returning one or more error messages.
Parameters
\Drupal\file\FileInterface $file: The file entity being validated.
Return value
array An array of error messages. If there are no problems with the file return an empty array.
See also
Related topics
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/modules/file/file.api.php, line 27
- Hooks for file module.
Code
1 2 3 4 5 6 7 8 9 10 11 12 | function hook_file_validate(Drupal\file\FileInterface $file) { $errors = array(); if (!$file->getFilename()) { $errors[] = t("The file's name is empty. Please give a name to the file."); } if (strlen($file->getFilename()) > 255) { $errors[] = t("The file's name exceeds the 255 characters limit. Please rename the file and try again."); } return $errors;} |
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