具有arraycollection的學說更新實體不會刪除項目

Question

我有這個課程：

摘要帳單

/**
 * @ORM\Table(name="billing_invoice")
 * @ORM\Entity(repositoryClass="BillingBundle\Repository\AbstractBillingInvoiceRepository")
 * @ORM\InheritanceType("JOINED")
 * @ORM\DiscriminatorColumn(name="billingInvoiceType", type="string")
 * @ORM\DiscriminatorMap({"ProFormaInvoice" = "\BillingBundle\Entity\BillingInvoices\ProFormaInvoice", "Invoice" = "\BillingBundle\Entity\BillingInvoices\Invoice"})
 * @GRID\Column(id="billingInvoiceType", filterable=false, type="abstract_billing_invoice")
 * @GRID\Column(id="downloadInvoice", filterable=false, type="download_invoice", safe=false)
 * @Gedmo\SoftDeleteable()
 */
abstract class AbstractBillingInvoice
{
.....
    /**
     * @ORM\OneToMany(targetEntity="BillingBundle\Entity\BillingInvoiceItem", mappedBy="billingInvoice", cascade={"persist","remove"}, orphanRemoval=true)
     */
    private $billingInvoiceItems;
......
    public function __construct()
    {
        $this->billingInvoiceItems = new ArrayCollection();
    }

    public function getId()
    {
        return $this->id;
    }

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

    public function getBillingInvoiceItems()
    {
        return $this->billingInvoiceItems;
    }

    public function setBillingInvoiceItems($billingInvoiceItems)
    {
        $this->billingInvoiceItems = $billingInvoiceItems;

        return $this;
    }

    public function addBillingInvoiceItems(BillingInvoiceItem $billingInvoiceItems)
    {
        $billingInvoiceItems->setBillingInvoice($this);
        $this->billingInvoiceItems->add($billingInvoiceItems);

        return $this;
    }

    public function removeBillingInvoiceItems(BillingInvoiceItem $billingInvoiceItems)
    {
        if ($this->billingInvoiceItems->contains($billingInvoiceItems)) {
            $this->billingInvoiceItems->remove($billingInvoiceItems);
        }

        return $this;
    }

和BillingInvoiceItem

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

    /**
     * @ORM\ManyToOne(targetEntity="BillingBundle\Entity\AbstractBillingInvoice", inversedBy="billingInvoiceItems")
     * @ORM\JoinColumn(nullable=false, referencedColumnName="id")
     * @Assert\NotBlank()
     */
    private $billingInvoice;
.....
    public function getId()
    {
        return $this->id;
    }

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

    public function setBillingInvoice($billingInvoice)
    {
        $this->billingInvoice = $billingInvoice;

        return $this;
    }

    public function getBillingInvoice()
    {
        return $this->billingInvoice;
    }

一切正常，除了一件事-我無法從收藏夾中刪除物品。 添加項目沒有問題，但是如果缺少某些項目，則有兩種情況-如果刪除了ArrayCollection的最后一個元素，則數據庫中沒有任何反應。 如果刪除了其他元素，則會復制最后一個元素而不是它。

如果我在onFlush方法中的EntityListenere中轉儲實體AbstractBillingInvoice，我會看到正確的數據。 如果刪除元素，則元素實際上丟失了，但是在刷新后，此元素又回到了數據庫中。

我做錯了什么？

非常感謝D

Answer 1

通常，我們通過use Doctrine\\Common\\Collections\\ArrayCollection;通過ArrayCollection管理許多關系use Doctrine\\Common\\Collections\\ArrayCollection; 包。

您可以這樣更新代碼：

public function __construct() {
    $this->billingInvoice = new ArrayCollection();
    // [...]
}
public function getBillingInvoice(){
    return $this->billingInvoice->toArray();
}

public function addBillingInvoice(BillingInvoice $billingInvoice){
    if(!$this->billingInvoice->contains($billingInvoice)){
        $this->billingInvoice->add($billingInvoice);
    }
}

public function removeBillingInvoice(BillingInvoice $billingInvoice){
    if($this->billingInvoice->contains($billingInvoice)){
        $this->billingInvoice->removeElement($billingInvoice);
    }
}

然后，當您想刪除一個關系時，只需調用：

$myEntity->removeBillingInvoice($myBillingInvoice);
$em->persist($myEntity);
$em->flush();

但是我不確定這是否可以解決您的最初問題，您是否嘗試檢查tou billingInvoice實體是否也刪除了反向映射？