Chris@0: /**
Chris@0:  * Implements hook_file_move().
Chris@0:  */
Chris@0: function {{ machine_name }}_file_move($file, $source) {
Chris@0:   $file_user = user_load($file->uid);
Chris@0:   // Make sure that the file name starts with the owner's user name.
Chris@0:   if (strpos($file->filename, $file_user->name) !== 0) {
Chris@0:     $file->filename = $file_user->name . '_' . $file->filename;
Chris@0:     $file->save();
Chris@0: 
Chris@0:     watchdog('file', t('Moved file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->filename)));
Chris@0:   }
Chris@0: }