symfony中，使用原声的sql语句

 1 /**
 2 * 数组形式的原生sql
 3 */
 4 public function arrayA(array $did)
 5 {
 6 $statement = $this->getEntityManager()->getConnection()->executeQuery('
 7     SELECT did, count(1) as num
 8     FROM position_structure
 9     WHERE did in (?)
10     AND status = 1
11     GROUP BY did
12     ', array($did), array(Connection::PARAM_INT_ARRAY));
13     return $statement->fetchAll();
14 }
15
16 /**
17 * 单个值的原生sql
18 */
19 public function fetchCompaniesByUserId($userId){
20     $statement = $this->getEntityManager()->getConnection()->prepare('
21     SELECT c.id,c.name,c.type FROM company_admin ca
22     LEFT JOIN company c ON c.id = ca.company_id
23     WHERE ca.user_id = :userId');
24     $statement->bindValue('userId', $userId);
25     $statement->execute();
26     return $statement->fetchAll();
27 }