/**
  * Set parent page
  *
  * @param Page $page
  * @return null
  */
 function setPage($page)
 {
     $this->setPageId($page->getId());
     if ($this->isNew()) {
         $this->setName($page->old_name ? $page->old_name : $page->getName());
         $this->setBody($page->old_body ? $page->old_body : $page->getBody());
         $this->setVersion($page->getRevisionNum());
     }
     // if
 }