1
我想克隆一個實體,其在班裏一個一對多的自我參照和目標是顯示如下:陣列空克隆一對多的關係後自我引用
parent entity:
product {
id: 34
parent_product_id: null
clone_products_id: [12,45,24]
}
child clone entity:
product {
id: null
parent_product_id: 34
clone_products_id: null
}
我成功克隆實體,但在父項中,clone_products_id數組的值始終爲空,並且無法找出原因。我的實體代碼:
/**
* @ORM\OneToMany(targetEntity="Product", mappedBy="parentProduct", cascade={"persist"})
*/
private $clonedProduct;
/**
* @ORM\ManyToOne(targetEntity="Product", inversedBy="clonedProduct", cascade={"persist"})
* @ORM\JoinColumn(name="parent_product_id",referencedColumnName="id")
*/
private $parentProduct;
public function __construct(){
$this->clonedProduct = new \ArrayCollection();
}
//getting the ids of the clones
/*
* @Groups({"product"})
*/
public function getClonedProductIds(){
$clones = $this->getClonedProduct();
$idsClone = new \ArrayCollection();
foreach ($clones as $item) {
$id = $item->getId();
$idsClone->add($id);
}
return $idsClone;
}
和克隆功能:
public function clone(Product $product){
$em = $this->container->get('doctrine.orm.entity_manager');
$clonedProduct = clone $product;
$clonedProduct->setParentProduct($product);
$em->persist($clonedProduct);
$em->flush();
return $clonedProduct;
}
和主函數來調用我們的克隆功能:
public function productAction(){
$clonedProduct = $productRepo()->clone($product);
return $this->json($clonedProduct, Response::HTTP_OK, [],
['groups' => ['product']]);
}
所以,唯一的問題是對的IDS克隆不在克隆的產品數組中。任何想法如何解決它?