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| <?php | |
| /** | |
| * @file | |
| * Hooks for file module. | |
| */ | |
| /** | |
| * @addtogroup hooks | |
| * @{ | |
| */ | |
| /** | |
| * 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. | |
| * | |
| * @param \Drupal\file\FileInterface $file | |
| * The file entity being validated. | |
| * @return array | |
| * An array of error messages. If there are no problems with the file return | |
| * an empty array. | |
| * | |
| * @see file_validate() | |
| */ | |
| 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; | |
| } | |
| /** | |
| * Respond to a file that has been copied. | |
| * | |
| * @param \Drupal\file\FileInterface $file | |
| * The newly copied file entity. | |
| * @param \Drupal\file\FileInterface $source | |
| * The original file before the copy. | |
| * | |
| * @see file_copy() | |
| */ | |
| function hook_file_copy(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) { | |
| // Make sure that the file name starts with the owner's user name. | |
| if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) { | |
| $file->setFilename($file->getOwner()->name . '_' . $file->getFilename()); | |
| $file->save(); | |
| \Drupal::logger('file')->notice('Copied file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->getFilename())); | |
| } | |
| } | |
| /** | |
| * Respond to a file that has been moved. | |
| * | |
| * @param \Drupal\file\FileInterface $file | |
| * The updated file entity after the move. | |
| * @param \Drupal\file\FileInterface $source | |
| * The original file entity before the move. | |
| * | |
| * @see file_move() | |
| */ | |
| function hook_file_move(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) { | |
| // Make sure that the file name starts with the owner's user name. | |
| if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) { | |
| $file->setFilename($file->getOwner()->name . '_' . $file->getFilename()); | |
| $file->save(); | |
| \Drupal::logger('file')->notice('Moved file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->getFilename())); | |
| } | |
| } | |
| /** | |
| * @} End of "addtogroup hooks". | |
| */ |