php - 使用复合键的 Doctrine 2 Hydration

Question

我有 3 个实体:

1.

/**
 * @ORM\Entity
 */
class Product
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer", name="uid")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\OneToMany(targetEntity="ProductLabel", mappedBy="product")
     */
    protected $labels;

    public function __construct() {
        $this->labels = new ArrayCollection();
    }

    public function addLabels(Collection $labels) {
        foreach ($labels as $label) {
            $label->setProduct($this);
            $this->labels->add($label);
        }
    }

    public function removeLabels(Collection $labels) {
        foreach ($labels as $label) {
            $label->setProduct(null);
            $this->labels->removeElement($label);
        }
    }

    public function getLabels() {
        return $this->labels;
    }

}

2.

/**
 * @ORM\Entity
 * @ORM\Table(name="product_label")
 */
class ProductLabel
{

    /**
     * @ORM\Id
     * @ORM\ManyToOne(targetEntity="Product")
     * @ORM\JoinColumn(name="product_id", referencedColumnName="uid")
     */
    protected $product;

    /**
     * @ORM\Id
     * @ORM\ManyToOne(targetEntity="Label")
     * @ORM\JoinColumn(name="label_id", referencedColumnName="uid")
     */
    protected $label;

    public function setProduct($product)
    {
        $this->product = $product;
    }

    public function getProduct()
    {
        return $this->product;
    }

    public function setLabel($label)
    {
        $this->label = $label;
    }

    public function getLabel()
    {
        return $this->label;
    }

}

3.

/**
 * @ORM\Entity
 * @ORM\Table(name="label")
 */

class Label {
    /**
     * @ORM\Id
     * @ORM\Column(type="integer", name="uid")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\Column(type="string")
     */
    protected $title;

    public function setId($id)
    {
        $this->id = $id;
    }

    /**
     * @return mixed
     */
    public function getId()
    {
        return $this->id;
    }

    public function setTitle($title)
    {
        $this->title = $title;
    }

    public function getTitle()
    {
        return $this->title;
    }



}

我正在尝试使用标签来滋润产品:

    $hydrator = new DoctrineObject($this->getEntityManager());
    $entity = new \Application\Entity\Product();
    $data = [
        'id' => 1,
        'title' => 'asdasd',
        'labels' => [
            [ 'product' => 1, 'label' => 1],
            [ 'product' => 1, 'label' => 2],
            [ 'product' => 1, 'label' => 3],
        ]
    ];
    $entity = $hydrator->hydrate($data, $entity);
    $this->getEntityManager()->merge($entity);
    $this->getEntityManager()->flush();

但是我在数据库中没有任何变化。我只从 product_label 表中得到 4 个 SELECT 查询。我的错误在哪里？可以这样使用复合键吗？

Answer 1

'标签'=> [
[ '产品' => 1, '标签' => 1],
[ '产品' => 1, '标签' => 2],
[ '产品' => 1, '标签' => 3],
]

这不应该在数组中。它应该是标签类的实例为标签类创建一个实例并将值设置为该实体而不是数组

应该是类的实例(即)应该传递标签实例