Question

我已经把头烧了两天而且我不知道要去哪里：我需要上传一个物体的多个图像。

请注意，我有一个名为REALTY的实体，我可以为其上传一个或多个图像。所以我提出了这个实体：

<?php

namespace AppBundle\Entity;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;

/**
 * Realty
 *
 * @ORM\Table(name="realty")
 * @ORM\Entity(repositoryClass="AppBundle\Repository\RealtyRepository")
 */
class Realty extends Timestampable
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORM\Column(name="title", type="string", length=125)
     */
    private $title;

    /**
     * @var string
     *
     * @ORM\Column(name="description", type="text")
     */
    private $description;

    /**
     * @var string
     *
     * @ORM\Column(name="price", type="decimal", precision=8, scale=2)
     */
    private $price;

    /**
     * @var Advertiser
     *
     * @ORM\ManyToOne(targetEntity="Advertiser", inversedBy="realties")
     * @ORM\JoinColumn(name="adivertiser_id", referencedColumnName="id", nullable=false)
     */
    private $advertiser;

    /**
     * @var ArrayCollection
     *
     * @ORM\OneToMany(targetEntity="RealtyImage", mappedBy="realty")
     */
    private $images;

    /**
     * Constructor
     */
    public function __construct()
    {
        $this->images = new \Doctrine\Common\Collections\ArrayCollection();
    }

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

    /**
     * Set title
     *
     * @param string $title
     *
     * @return Realty
     */
    public function setTitle($title)
    {
        $this->title = $title;

        return $this;
    }

    /**
     * Get title
     *
     * @return string
     */
    public function getTitle()
    {
        return $this->title;
    }

    /**
     * Set description
     *
     * @param string $description
     *
     * @return Realty
     */
    public function setDescription($description)
    {
        $this->description = $description;

        return $this;
    }

    /**
     * Get description
     *
     * @return string
     */
    public function getDescription()
    {
        return $this->description;
    }

    /**
     * Set price
     *
     * @param string $price
     *
     * @return Realty
     */
    public function setPrice($price)
    {
        $this->price = $price;

        return $this;
    }

    /**
     * Get price
     *
     * @return string
     */
    public function getPrice()
    {
        return $this->price;
    }

    /**
     * Set advertiser
     *
     * @param \AppBundle\Entity\Advertiser $advertiser
     *
     * @return Realty
     */
    public function setAdvertiser(\AppBundle\Entity\Advertiser $advertiser)
    {
        $this->advertiser = $advertiser;

        return $this;
    }

    /**
     * Get advertiser
     *
     * @return \AppBundle\Entity\Advertiser
     */
    public function getAdvertiser()
    {
        return $this->advertiser;
    }

    /**
     * Add image
     *
     * @param \AppBundle\Entity\RealtyImage $image
     *
     * @return Realty
     */
    public function addImage(\AppBundle\Entity\RealtyImage $image)
    {
        $this->images[] = $image;

        return $this;
    }

    /**
     * Remove image
     *
     * @param \AppBundle\Entity\RealtyImage $image
     */
    public function removeImage(\AppBundle\Entity\RealtyImage $image)
    {
        $this->images->removeElement($image);
    }

    /**
     * Get images
     *
     * @return \Doctrine\Common\Collections\Collection
     */
    public function getImages()
    {
        return $this->images;
    }
}

然后，我创建了另一个实体来表示一对多（不动产有很多图像）。

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * RealtyImage
 *
 * @ORM\Table(name="realty_image")
 * @ORM\Entity(repositoryClass="AppBundle\Repository\RealtyImageRepository")
 */
class RealtyImage
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORM\Column(name="description", type="string", length=255)
     */
    private $description;

    /**
     * @var int
     *
     * @ORM\Column(name="realty", type="integer")
     */
    private $realty;

    /**
     * @var string
     *
     * @ORM\Column(name="path", type="string", length=255)
     */
    private $path;


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

    /**
     * Set description
     *
     * @param string $description
     *
     * @return RealtyImage
     */
    public function setDescription($description)
    {
        $this->description = $description;

        return $this;
    }

    /**
     * Get description
     *
     * @return string
     */
    public function getDescription()
    {
        return $this->description;
    }

    /**
     * Set realty
     *
     * @param integer $realty
     *
     * @return RealtyImage
     */
    public function setRealty($realty)
    {
        $this->realty = $realty;

        return $this;
    }

    /**
     * Get realty
     *
     * @return int
     */
    public function getRealty()
    {
        return $this->realty;
    }

    /**
     * Set path
     *
     * @param string $path
     *
     * @return RealtyImage
     */
    public function setPath($path)
    {
        $this->path = $path;

        return $this;
    }

    /**
     * Get path
     *
     * @return string
     */
    public function getPath()
    {
        return $this->path;
    }
}

到目前为止没问题（我猜）。但后来我有FormType。这就是出问题的地方。如果我将其声明为：

<?php

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\FileType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class RealtyType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('title')
            ->add('description')
            ->add('price')
            ->add('images', FileType::class, [
                'multiple' => true,
            ])
            ->add('advertiser')
        ;
    }

    /**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle\Entity\Realty'
        ));
    }
}

我会收到以下错误：

表单的视图数据应该是类的实例 Symfony \ Component \ HttpFoundation \ File \ File，但是是一个实例 class Doctrine \ Common \ Collections \ ArrayCollection。你可以避免这种情况将“data_class”选项设置为null或添加视图时出错转换类实例的转换器 Doctrine \ Common \ Collections \ ArrayCollection到一个实例的Symfony \组件\ HttpFoundation \文件\文件。

我完全迷失在这里。我知道我缺少几个概念，但我不知道从哪里开始查看，在我让表单工作后我甚至没有启动“处理文件”过程。

非常感谢

Answer 1

该错误的含义与它所说的一样，您正在尝试使用属性图像创建一个表单，声明类型为FileType :: class，因此您说这是一个文件，并且在实体中＆＃34; images＆＃34;被宣布为集合;属性var button = $('.confirm-box .yes-button'); $('#button1').click(function() { button.removeClass("b").addClass("a"); }); $('#button2').click(function() { button.removeClass("a").addClass("b"); }); button.click(function() { if($(this).hasClass("a")){ callBackForButton1(); } else { callBackForButton2(); } });无法解决您的问题。

要解决此问题，您必须执行许多bundles所做的事情，创建包含一个媒体或图像的实体，然后在与第一个实体的OneToMany关系中配置其他实体。然后，您必须使用embedded forms添加许多图像。

希望这能帮到你

使用Symfony 3

1 个答案: