Symfony2在自定义存储库类中使用查询

Question

我有一个Repository类,其中包含一个调用自定义Query的方法.当我尝试findAllWithRating()从控制器内部调用时,我得到以下异常:

[2/2] QueryException: [Syntax Error] line 0, col 156: Error: Unexpected 'NULL'

如果我尝试在phpmyadmin中调用查询,则查询效果很好!

任何的想法？

<?php
namespace Anchorbrands\Bundle\MessageBundle\Entity;

use Doctrine\ORM\EntityRepository;

class MessageRepository extends EntityRepository
{

    public function findAllWithRating() {
        return $this->getEntityManager()
            ->createQuery("SELECT id, user_id, title, slug, content, question, image_name, created_at, updated_at,
                    MAX(CASE WHEN rating = '1' THEN totalCount ELSE NULL END) 'Rating 1',
                    MAX(CASE WHEN rating = '2' THEN totalCount ELSE NULL END) 'Rating 2',
                    MAX(CASE WHEN rating = '3' THEN totalCount ELSE NULL END) 'Rating 3'
            FROM
            (
                SELECT  a.id, a.user_id, a.title, a.slug , a.content, a.question, a.image_name, a.created_at, a.updated_at,
                        rating, COUNT(*) totalCount
                FROM    AnchorbrandsMessageBundle:Message a
                        LEFT JOIN AnchorbrandsMessageBundle:Rating b
                            ON a.id = message_id
                GROUP BY a.id, a.user_id, a.title, a.slug, a.content, a.question, a.image_name, a.created_at, a.updated_at, rating
            ) r
            GROUP BY id, user_id, title, slug, content, question, image_name, created_at, updated_at")->getResult();
    }

}

Answer 1

您似乎混合了DQL和SQL.您可以在这里查看 DQL的可能性.

查看您的查询,我建议您使用SQL而不是DQL.

如何在存储库中执行SQL查询的示例:

$sql = 'SELECT * FROM table WHERE id = :id';
$params = array(
    'id' => 4,
);

return $this->getEntityManager()->getConnection()->executeQuery($sql, $params)->fetchAll();