没有 session cookie 时 Doctrine 对象不完整，为什么？

Question

今天早上我遇到了一个愚蠢的问题，我很难找到一个体面的解决方案。也许你可以给我小费...

我在实体存储库中有这个简单的函数，带有一个简单的查询：

public function findAvailabilityByDr($delivery_round_id) {
    $qb = $this->_em->createQueryBuilder()
        ->select('partial dro.{id}, 
                  partial drp.{id, maxDeliveries, countDeliveries},
                  partial zdd.{id, day},
                  partial rer.{id, maxOrders, countOrders}')
        ->from($this->_entityName, 'dro')
        ->leftJoin('dro.parts', 'drp')
        ->leftJoin('drp.day', 'zdd')
        ->leftJoin('drp.relayRounds', 'rer')
        ->where('dro.id = :delivery_round_id')
        ->setParameters(array(
            'delivery_round_id' => $delivery_round_id,
        ));

    dump($qb->getQuery()->getOneOrNullResult());
    die();
}

在第一次加载时（没有创建会话 cookie），我得到了一个不完整的结果：

DeliveryRound {#342 ▼
  -id: 117
  -endOfOrdersDate: DateTime {#346 ▶}
  -parts: PersistentCollection {#428 ▼
    -snapshot: array:2 [ …2]
    -owner: DeliveryRound {#342}
    -association: array:15 [ …15]
    -em: EntityManager {#695 …11}
    -backRefFieldName: "deliveryRound"
    -typeClass: ClassMetadata {#373 …}
    -isDirty: false
    #collection: ArrayCollection {#412 ▼
      -elements: array:2 [▼
        0 => DeliveryRoundPart {#425 ▼
          -id: 134
          -deliveryDate: DateTime {#347 ▶}
          -deliveryHourStart: null
          -deliveryHourEnd: null
          -maxDeliveries: null <------ HERE !!!!!!!!!!!
          -countDeliveries: null
          -deliveryRound: DeliveryRound {#342}
          -day: ZoneDeliveryDay {#1302 ▶}
          -ordersCustomers: PersistentCollection {#358 ▶}
          -ordersProviders: PersistentCollection {#410 ▶}
          -relayRounds: PersistentCollection {#637 ▶}
          -roadSheetOptimizationData: null
        }
        1 => DeliveryRoundPart {#1444 ▶}
      ]
    }
    #initialized: true
  }
  -ordersProvidersGenDate: null
  -roadSheetPath: null
  -roadSheetGenDate: null
  -preparationSheetPath: null
  -preparationSheetGenDate: null
  -deliveryMailNotificationsSendingDate: null
  -deliveryNotificationsSendingDate: null
  #translations: PersistentCollection {#420 ▶}
  #newTranslations: null
  #currentLocale: "fr"
  #defaultLocale: "fr"
}

并且在第二次调用（刷新）时，会话 cookie 被创建并且结果是正确的（maxDeliveries: 30 是正确的值）：

DeliveryRound {#1657 ▼
  -id: 117
  -endOfOrdersDate: null
  -parts: PersistentCollection {#1794 ▼
    -snapshot: array:2 [ …2]
    -owner: DeliveryRound {#1657}
    -association: array:15 [ …15]
    -em: EntityManager {#695 …11}
    -backRefFieldName: "deliveryRound"
    -typeClass: ClassMetadata {#1673 …}
    -isDirty: false
    #collection: ArrayCollection {#1795 ▼
      -elements: array:2 [▼
        0 => DeliveryRoundPart {#1747 ▼
          -id: 134
          -deliveryDate: null
          -deliveryHourStart: null
          -deliveryHourEnd: null
          -maxDeliveries: 30 <------ HERE !!!!!!!!!!!
          -countDeliveries: 0
          -deliveryRound: DeliveryRound {#1657}
          -day: ZoneDeliveryDay {#2063 ▶}
          -ordersCustomers: PersistentCollection {#1904 ▶}
          -ordersProviders: PersistentCollection {#1896 ▶}
          -relayRounds: PersistentCollection {#2187 ▶}
          -roadSheetOptimizationData: null
        }
        1 => DeliveryRoundPart {#2188 ▶}
      ]
    }
    #initialized: true
  }
  -ordersProvidersGenDate: null
  -roadSheetPath: null
  -roadSheetGenDate: null
  -preparationSheetPath: null
  -preparationSheetGenDate: null
  -deliveryMailNotificationsSendingDate: null
  -deliveryNotificationsSendingDate: null
  #translations: PersistentCollection {#1799 ▶}
  #newTranslations: null
  #currentLocale: "fr"
  #defaultLocale: "fr"
}

当我使用 $qb->getQuery()->getArrayResult() 结果在这两种情况下都是正确的。

WTF？是bug吗？

感谢您的帮助！

编辑

如果我将其简化为最简单的表达式，没有部分和来自控制器的调用，那么错误仍然存​​在......

存储库：

public function findAvailabilityByDr($delivery_round_id) {
    $qb = $this->_em->createQueryBuilder()
        ->select('dro, 
                  drp')
        ->from($this->_entityName, 'dro')
        ->leftJoin('dro.parts', 'drp')
        ->where('dro.id = :delivery_round_id')
        ->setParameters(array(
            'delivery_round_id' => $delivery_round_id,
        ));

    return $qb->getQuery()->getOneOrNullResult();
}

控制器：

class StructureController extends BasePublicCommonController
{
    public function indexAction()
    {
        $delivery_round = $this->getDoctrine()->getManager()->getRepository('ProxymartDeliveryBundle:DeliveryRound')->findAvailabilityByDr(117);
        dump($delivery_round);
        die();
    }
}

这是为了这样的事情，我有时讨厌编程 :)

Answer 1

http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/partial-objects.html

我不知道cookie，但我知道arrayResult()：

部分对象问题通常不适用于未将查询结果作为对象检索的方法或查询。例如：Query#getArrayResult() [...]