public function getUserById($id) {
		$oQB = $this->createQueryBuilder('U');
		$oQB->select()
			->where($oQB->expr()->eq('U.id', ':id'))
			->setParameter(':id', $id);
		
		$aResult = $oQB->getQuery()->getOneOrNullResult();
		
		return $aResult;
	}