public function getChapterregion($con = null) { include_once 'lib/model/om/BaseChapterregionPeer.php'; if ($this->aChapterregion === null && $this->chapterregion_id !== null) { $this->aChapterregion = ChapterregionPeer::retrieveByPK($this->chapterregion_id, $con); } return $this->aChapterregion; }