Doctrine2 ORM使用本机查询

Question

我有以下命令：

 $rsm = new ResultSetMapping();
        $query = $this->em->createNativeQuery('SELECT userid FROM prospective_shop WHERE LENGTH(bio) = 0 ORDER BY RAND()', $rsm);
        //$query->setMaxResults(10);
        $prospectiveShops = $query->getResult();

这里它给了我一个空数组。我复制粘贴SQL，它工作得非常好。知道为什么吗？

Answer 1

你有没有忘记使用：

$rsm->addFieldResult(...);

将查询结果映射到学说对象？

编辑：

尝试这种方式：

 $rsm = new ResultSetMapping();
 $rsm->addEntityResult('my\bundle\Entity\ProsprectiveShop', 's');
 $rsm->addFieldResult('s','userid','userid');
 $query = $this->em->createNativeQuery('SELECT userid FROM prospective_shop s WHERE LENGTH(bio) = 0 ORDER BY RAND()', $rsm);
 $prospectiveShops = $query->getResult();