如何在doctrine2querybuilder中实现（…或…）mysql查询

我在MYSQL中有一个SQL查询： 比如说

SELECT s.* FROM vplanning.cities as c1
INNER JOIN vplanning.cities as c2
ON (c1.id = c2.area_id)
INNER JOIN vplanning.storages as s
ON (s.city_id = c2.id OR s.city_id = c1.id)
WHERE c1.id = 109;

在理论中，我可以这样写（从我的工作代码）：

正如你所看到的，我在照片中展示了我的关系

->innerJoin('s.city', 'c1')

但我也需要这样的关系

->innerJoin('s.city', 'c2')

在这种情况下：

ON (s.city_id = c2.id OR s.city_id = c1.id)

但它抛出了一个错误：

错误：“c2”已定义

c1

和

c2

是同一个实体，有着内在的联系。

试试这个：

$repository = $em->getRepository('VplanningPageBundle:Storage');
$qb = $repository->createQueryBuilder('storage');
//We can now use the expr()
$qb->join('storage.city', 'city', Join::WITH)
   ->join('city.area', 'area', Join::WITH, $qb->expr()->eq('area.id', ':cityID'))
   ->join('storage.storagestype', 'type', Join::WITH, $qb->expr()->eq('type.typename', ':storagesTypeName'))
   ->where('storage.active = :active')
   ->setParameters(array(
       'cityID' => $cityID,
       'storagesTypeName' => $storagesTypeName,
       'active' => 1
   ))
   ->orderBy('storage.adress');
$query = $qb->getQuery();

像这样试试看

$qb = $this->getRepository('VplanningPageBundle:City')->createQueryBuilder('c');
$qb->leftJoin('c.area', 'a')
    ->join('c.storage', 's', Join::ON, $qb->expr()->orX($qb->expr()->eq('c.id', 's.id'), $qb->expr()->eq('a.id', 's.id')))
    ->innerJoin('s.storagestype', 'st')
    ->where('c.id = :cityID')
    ->andWhere('st.typename = :storagesTypeName')
    ->andWhere('s.active = :active')
    ->setParameters(array(
       'cityID' => $cityID,
       'storagesTypeName' => $storagesTypeName,
       'active' => 1,
    ))
    ->orderBy('s.adress')
    ->getQuery()
;

---

这个问题的解决非常困难，对我来说，我必须学习：）

以下是我在某论坛上提出的问题的答案：

$qb = $em->getRepository('VplanningPageBundle:Storage')->createQueryBuilder('storage');
            $query = $qb->join('storage.city', 'city1', Join::WITH)
                ->leftJoin('city1.area', 'area', Join::WITH, $qb->expr()->eq('area.id', ':cityID'))
                ->leftJoin('storage.city', 'city2', Join::WITH, $qb->expr()->eq('city2.id', ':cityID'))
                ->join('storage.storagestype', 'type', Join::WITH, $qb->expr()->eq('type.typename', ':storagesTypeName'))
                ->where('storage.active = :active')
                ->andWhere($qb->expr()->orX($qb->expr()->isNotNull('city2'), $qb->expr()->isNotNull('area')))
                ->setParameters(array(
                'cityID' => $cityID,
                'storagesTypeName' => $storagesTypeName,
                'active' => 1
            ))
                ->orderBy('storage.adress')
            ->getQuery();

---

我认为更好的选择应该是使用..我考虑过这种方法，这似乎是唯一正确的方法。我的结果和以前一样，但你的代码对我来说是新的，我会和他一起玩。谢谢。谢谢你的回答，它抛出了一个

[Syntax Error]行0，第92列：错误：预期字符串结束，得到了“ON”

，但我认为你给了我一个想法，是时候阅读文档了：）但我认为这实际上是更复杂的sql请求。

$qb = $em->getRepository('VplanningPageBundle:Storage')->createQueryBuilder('storage');
            $query = $qb->join('storage.city', 'city1', Join::WITH)
                ->leftJoin('city1.area', 'area', Join::WITH, $qb->expr()->eq('area.id', ':cityID'))
                ->leftJoin('storage.city', 'city2', Join::WITH, $qb->expr()->eq('city2.id', ':cityID'))
                ->join('storage.storagestype', 'type', Join::WITH, $qb->expr()->eq('type.typename', ':storagesTypeName'))
                ->where('storage.active = :active')
                ->andWhere($qb->expr()->orX($qb->expr()->isNotNull('city2'), $qb->expr()->isNotNull('area')))
                ->setParameters(array(
                'cityID' => $cityID,
                'storagesTypeName' => $storagesTypeName,
                'active' => 1
            ))
                ->orderBy('storage.adress')
            ->getQuery();