Question

我正在尝试按照本教程https://symfony.com/doc/current/controller/upload_file.html进行操作，并且它很好用，但我需要上传多个文件。

现在我有2个相关的表产品和ProductImages。我知道如何在控制器中上传多个文件，但我希望它在学说中，我认为它更干净，更专业。

所以我尝试了很多与foreach的组合，但总是出错：

类型＆＃34; Web \ BaseBundle \ Entity \ ProductImages＆＃34;的预期参数，＆＃34; Symfony的\元器件\ HttpFoundation \文件\ UploadedFile的＆＃34;给定

我的实体：

产品：

import pandas as pd

df = pd.DataFrame.from_csv('text.csv',index_col=None,header=None)
df[0] = df[0].apply(lambda x:x.strip())
df = df.groupby(0).sum().reset_index()
mylist = zip(df[0],map(lambda x: '${:.2f}'.format(x),df[1]))

ProductImages：

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

    ///

    /**
     * @ORM\OneToMany(targetEntity="Web\BaseBundle\Entity\ProductImages", mappedBy="product", cascade={"persist", "remove"})
     * @ORM\OrderBy({"id" = "ASC"})
     *
     */
    private $images;

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

    ////

    /**
     * Add image
     *
     * @param \Web\BaseBundle\Entity\ProductImages $image
     *
     * @return Product
     */
    public function addImage(\Web\BaseBundle\Entity\ProductImages $image)
    {
        $this->images[] = $image;

        return $this;
    }

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

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

FileUploader：

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

    /**
     *
     * @ORM\Column(name="image", type="string", length=255, nullable=true)
     * @Assert\NotBlank(message="Please, upload the product brochure as a PDF file.")
     * @Assert\File(mimeTypes={ "image/jpeg", "image/jpg", "image/png" })
     */
    private $image;


    ///


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

    ///

    /**
     * Set image
     *
     * @param string $image
     *
     * @return ProductImages
     */
    public function setImage($image)
    {
        $this->image = $image;

        return $this;
    }

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

}

FileUploadListener：

class FileUploader
{
    private $targetDir;

    public function __construct($targetDir)
    {
        $this->targetDir = $targetDir;
    }

    public function upload(UploadedFile $file)
    {
        $fileName = md5(uniqid()).'.'.$file->guessExtension();

        $file->move($this->getTargetDir(), $fileName);

        return $fileName;
    }

    public function getTargetDir()
    {
        return $this->targetDir;
    }
}

有人可以帮我吗？感谢

Answer 1

由我自己修复......

宣布临时。产品实体

中文件的变量

private $files;

public function __construct()
{
    $this->files = new \Doctrine\Common\Collections\ArrayCollection();
}

public function setFiles($files)
{
    $this->files = $files;

    return $this;
}

public function getFiles()
{
    return $this->files;
}

更新了uploadFile函数：

private function uploadFile($entity)
{
    if (!$entity instanceof Product) {
        return;
    }

    $files = $entity->getFiles();

    foreach ($files as $file) {
        if (!$file instanceof UploadedFile) {
            return;
        }
        $fileName = $this->uploader->upload($file);
        $productImage = new ProductImages();
        $productImage->setImage($fileName);
        $productImage->setProduct($entity);
        $entity->addImage($productImage);
    }
}

Symfony3 / Doctrine - 多个文件上传

1 个答案: