试图创建项目数组，但我得到：不能将实体类型的对象用作数组

Question

你好，我是 php 和 symfony 的新手，我需要帮助！！ 我正在使用 api 平台， 我有一个 invoiceLineItems 字段，它是一个 invoiceLineItems 实体数组，当调用 setInvoiceLineItems 时，它期望参数是一个对象而不是 ArrayCollection。

这是我的 invoiceLineItems 实体的示例：

<?php

namespace App\Bundle\Entity;

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use ApiPlatform\Core\Annotation\ApiResource;
use Symfony\Component\Serializer\Annotation\Groups;
use App\Bunble\Repository\InvoiceLineItemRepository;
use App\Bundle\Entity\User;

#[ORM\Entity(repositoryClass: InvoiceLineItemRepository::class)]
#[ORM\Table(name: '`invoiceLineItems`')]
#[ApiResource(
    normalizationContext: ['groups' => ['read:InvoiceLineItem']],
    denormalizationContext: ['groups' => ['write:InvoiceLineItem']],
    collectionOperations: [
        'get',
        'post'
    ],
    itemOperations: [
        'get',
        'put',
        'delete'
    ],
)]
class InvoiceLineItem
{
    #[ORM\Id]
    #[ORM\GeneratedValue(strategy: 'AUTO')]
    #[ORM\Column(type: Types::INTEGER)]
    #[Groups(['read:InvoiceLineItems', 'read:Invoice'])]
    private ?int $id;

    #[ORM\Column(type: Types::STRING, length: 255, nullable: false)]
    #[Groups(['read:InvoiceLineItem', 'write:InvoiceLineItem', 'read:Invoice'])]
    private string $description;

    #[ORM\Column(type: Types::STRING, length: 255, nullable: true)]
    #[Groups(['read:InvoiceLineItem', 'write:InvoiceLineItem', 'read:Invoice'])]
    private string $subDescription;

    #[ORM\Column(type: Types::FLOAT, nullable: true)]
    #[Groups(['read:InvoiceLineItem', 'write:InvoiceLineItem', 'read:Invoice'])]
    private string $price;

    #[ORM\Column(type: Types::FLOAT, length: 255, nullable: true)]
    #[Groups(['read:InvoiceLineItem', 'write:InvoiceLineItem', 'read:Invoice'])]
    private string $vatPercentage;

    #[ORM\Column(type: Types::FLOAT, length: 100, nullable: true,)]
    #[Groups(['read:InvoiceLineItem', 'write:InvoiceLineItem', 'read:Invoice'])]
    private string $vat;

    #[ORM\Column(type: Types::FLOAT, nullable: false)]
    #[Groups(['read:InvoiceLineItem', 'write:InvoiceLineItem', 'read:Invoice'])]
    private string $totalPrice;

    #[ORM\ManyToOne(
        targetEntity: Invoice::class,
        inversedBy: 'invoice',
    )]
    #[ORM\JoinColumn(
        nullable: false
    )]
    #[Groups(['read:InvoiceLineItem'])]
    private Invoice $invoice;


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

    public function getDescription(): ?string
    {
        return $this->description;
    }

    public function setDescription(string $description): self
    {
        $this->description = $description;
        return $this;
    }

    public function getSubDescription(): ?string
    {
        return $this->subDescription;
    }

    public function setSubDescription(string $subDescription): self
    {
        $this->subDescription = $subDescription;
        return $this;
    }

    public function getPrice(): ?float
    {
        return $this->price;
    }

    public function setPrice(float $price): self
    {
        $this->price = $price;
        return $this;
    }

    public function getVATPercentage(): ?float
    {
        return $this->vatPercentage;
    }

    public function setVATPercentage(float $vatPercentage): self
    {
        $this->vatPercentage = $vatPercentage;
        return $this;
    }

    public function getVat(): ?float
    {
        return $this->vat;
    }

    public function setVat(float $vat): self
    {
        $this->vat = $vat;
        return $this;
    }

    public function getTotalPrice(): ?float
    {
        return $this->totalPrice;
    }

    public function setTotalPrice(float $totalPrice): self
    {
        $this->totalPrice = $totalPrice;
        return $this;
    }


    public function getInvoice(): ?Invoice
    {
        return $this->invoice;
    }
}

这是我的发票实体：

<?php
namespace App\Bundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use ApiPlatform\Core\Annotation\ApiResource;
use DateTime;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Symfony\Component\Serializer\Annotation\Groups;
use App\Bundle\Repository\InvoiceRepository;
use App\Bundle\Entity\User;
use App\Bundle\Entity\InvoiceItems;
use App\Bundle\Entity\InvoiceLineItems;
use Symfony\Component\Serializer\Annotation\MaxDepth;

#[ORM\Entity(repositoryClass: InvoiceRepository::class)]
#[ORM\Table(name: '`invoice`')]
#[ApiResource(
    normalizationContext: ['groups' => ['read:Invoice']],
    denormalizationContext: ['groups' => ['write:Invoice', 'read:Invoice']],
    collectionOperations: [
        'get',
        'post'
    ],
    itemOperations: [
        'get',
        'put',
        'delete'
    ],
)]
class Invoice
{
    #[ORM\Id]
    #[ORM\GeneratedValue(strategy: 'AUTO')]
    #[ORM\Column(type: Types::INTEGER)]
    #[Groups(['read:Invoice'])]
    private ?int $id;

    #[MaxDepth(100)]
    #[ORM\OneToMany(targetEntity: InvoiceLineItems::class, mappedBy: 'invoice', cascade: ['persist', 'remove'])]
    #[Groups(['read:Invoice', 'write:Invoice'])]
    private $invoiceLineItems;

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


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

 
    public function getInvoiceLineItems(): ?Collection
    {
        return $this->invoiceLineItems;
    }

    public function setInvoiceLineItems(Collection $invoiceLineItems): self
    {
        foreach ($invoiceLineItems as $lineItemData) {
            $lineItem = new InvoiceLineItem();
            $lineItem->setDescription($lineItemData['description'] ?? null);
            $lineItem->setSubDescription($lineItemData['subDescription'] ?? null);
            $lineItem->setPrice($lineItemData['price'] ?? null);
            $lineItem->setVATPercentage($lineItemData['vatPercentage'] ?? null);
            $lineItem->setVat($lineItemData['vat'] ?? null);
            $lineItem->setTotalPrice($lineItemData['totalPrice'] ?? null);
            $lineItem->setInvoice($this);
            $this->invoiceLineItems->add($lineItem);
        }

        return $this;
    }

}

我已经尝试将参数类型显式设置为 array 和 ArrayCollection 但它仍然会抛出错误