/**
  * Function called when a project is deleted.
  * It Marks all project documents as deleted
  *
  * @param mixed $params ($param['group_id'] the ID of the deleted project)
  *
  * @return void
  */
 function project_is_deleted($params)
 {
     $groupId = $params['group_id'];
     if ($groupId) {
         require_once 'Docman_ItemFactory.class.php';
         $docmanItemFactory = new Docman_ItemFactory();
         $docmanItemFactory->deleteProjectTree($groupId);
     }
 }