function hook_file_update in Drupal 7

Respond to a file being updated.

This hook is called when file_save() is called on an existing file.

Parameters

$file: The file that has just been updated.

See also

file_save()

Related topics

2 functions implement hook_file_update()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

entity_crud_hook_test_file_update in modules/simpletest/tests/entity_crud_hook_test.module

Implements hook_file_update().

file_test_file_update in modules/simpletest/tests/file_test.module

Implements hook_file_update().

1 invocation of hook_file_update()

file_save in includes/file.inc

Saves a file object to the database.

File

modules/system/system.api.php, line 2922

Hooks provided by Drupal core and the System module.

Code

function hook_file_update($file) {
  $file_user = user_load($file->uid);

  // Make sure that the file name starts with the owner's user name.
  if (strpos($file->filename, $file_user->name) !== 0) {
    $old_filename = $file->filename;
    $file->filename = $file_user->name . '_' . $file->filename;
    $file
      ->save();
    watchdog('file', t('%source has been renamed to %destination', array(
      '%source' => $old_filename,
      '%destination' => $file->filename,
    )));
  }
}