SQL 将 DQL 与 symfony 一起使用时出错

Question

我正在使用 symfony 框架，当我尝试使用此 DQL 方法为 FOSUser 包

生成的 Fos_user table 恢复用户名时

namespace UserBundle\Repository;
use Doctrine\ORM\EntityRepository;

class UserRepository extends EntityRepository
{
    public function findEmailDQL($email)
    {
        $query=$this->getEntityManager()
             ->createQuery("SELECT u.username
              FROM UserBundle:User u
              WHERE u.id  = $email");
         return $query->getResult();
    }
}

具有控制器功能

public function findByEmailJsonAction($email)
{
    $users=$this->getDoctrine()->getManager()
                ->getRepository('UserBundle:User')
                ->findEmailDQL($email);
    $serializer =  new Serializer([new ObjectNormalizer()]);
    $formatted =$serializer->normalize($users);
    return new JsonResponse($formatted);
}

当我尝试查找 ID 为 127 的用户时，我不断收到此错误：

执行时出现异常'SELECT u0_.username AS username_0 FROM user u0_ WHERE u0_.id = 127':

SQLSTATE[42S22]: Column not found: 1054 Champ 'u0_.username' inconnu dans field list

Answer 1

:-)

试试这个！

$users = $this->getDoctrine()->getRepository("UserBundle:User")->findBy(array("email" => $email));

或者只有一个：

$user = $this->getDoctrine()->getRepository("UserBundle:User")->findOneBy(array("email" => $email));

祝你好运！ :-)

Answer 2

Symfony EntityRepository 创建 queryBuilder:

class UserRepository extends EntityRepository
{
    public function findEmailDQL($email)
    {
        return $this->createQueryBuilder('u')
            ->select('u.username')
            ->where('u.your_stuff_field = :stuff')
            ->setParameter('stuff' => $email)
            ->getQuery()
            ->getSingleResult();
    }
}

SQL 将 DQL 与 symfony 一起使用时出错

SQL error when using DQL with symfony

sql

dql

symfony