symfony doctrine QueryBuilder到数组结果

Question

我想从doctrine查询中获取数组。我是自我引用的实体

应用程序\实体\ AccessModule

/**
 * @ORM\ManyToOne(targetEntity="App\Entity\AccessModule", inversedBy="children")
 * @ORM\JoinColumn(name="parent_id", referencedColumnName="id", nullable=true)
 */
private $parent;

/**
 * @ORM\OneToMany(targetEntity="App\Entity\AccessModule", mappedBy="parent", fetch="EAGER")
 * @Serializer\MaxDepth(2)
 */
private $children;


/**
 * AccessModule constructor.
 */
public function __construct()
{
    $this->children = new ArrayCollection();
}

在这个存储库中

应用程序\实体\ AccessModuleRepository

 public function findAllArray()
{
    return $this->createQueryBuilder('a')
        ->getQuery()
        ->getResult();
}

这返回带有子项和父项的对象的集合。但是当我想把这个查询作为数组->getArrayResult()时，我得到的数组只有“id”和“name”而没有子目的“children”和“parent”。

return $ this-> createQueryBuilder（'a'） - > getQuery（） - > getArrayResult（）;

array:3 [▼
 0 => array:2 [▼
   "id" => 2
   "name" => "Common module"
  ]
  1 => array:2 [▼
    "id" => 3
    "name" => "User Module"
 ]
 2 => array:2 [▼
    "id" => 4
    "name" => "Admin Module"
  ]
]

return $ this-> createQueryBuilder（'a'） - > getQuery（） - > getResult（）;

  array:3 [▼
  0 => AccessModule {#5118 ▼
    -id: 2
    -name: "Common module"
    -parent: null
    -children: PersistentCollection {#5208 ▼
      -snapshot: array:2 [ …2]
      -owner: AccessModule {#5118}
      -association: array:15 [ …15]
      -em: EntityManager {#2624 …11}
      -backRefFieldName: "parent"
      -typeClass: ClassMetadata {#3093 …}
      -isDirty: false
      #collection: ArrayCollection {#5209 ▼
        -elements: array:2 [▼
          0 => AccessModule {#5325 ▼
            -id: 3
            -name: "User Module"
            -parent: AccessModule {#5118}
            -children: PersistentCollection {#5327 ▶}
          }
          1 => AccessModule {#5328 ▼
            -id: 4
            -name: "Admin Module"
            -parent: AccessModule {#5118}
            -children: PersistentCollection {#5330 ▶}
          }
        ]
      }
      #initialized: true
    }
  }
  1 => AccessModule {#5325 ▶}
  2 => AccessModule {#5328 ▶}
]

如何使用引用对象从getResult（）获取数组？

预期结果

[
 [0] => [
    'id' => 1,
    'name' => 'Common Module',
    'parent' => null,
    'children => [
        [0] => [
            'id' => 2,
            'name' => 'User Module',
            'parent' => 1,
            'children' => []
            ],
        [1] => [
            'id' => 3,
            'name' => 'Admin Module',
            'parent' => 1,
            'children' => []
            ]
        ]
    ],
 [1] => [
    'id' => 2,
    'name' => 'User Module',
    'parent' => 1,
    'children' => []
    ],
 [2] => [
    'id' => 3,
    'name' => 'Admin Module',
    'parent' => 1,
    'children' => []
    ]
]

Answer 1

您可以使用可选参数调用getResult方法：

return $this->createQueryBuilder('a')
    ->getQuery()
    ->getResult(Query::HYDRATE_ARRAY);

Answer 2

Doctrine Array层次结构

如果您希望将嵌套集层次结构水化为数组而不是对象，则可以使用HYDRATE_ARRAY_HIERARCHY常量来实现。它与HYDRATE_RECORD_HIERARCHY相同，只是它使用PHP数组而不是对象。

http://doctrine.readthedocs.io/en/latest/en/manual/data-hydrators.html#nested-set-array-hierarchy

public function findAllArray()
{
    return $this->createQueryBuilder('a')
        ->getQuery()
        ->execute(array(), Doctrine_Core::HYDRATE_ARRAY_HIERARCHY);;
}