使用 Sonata Admin 和 Doctirne 上传文件时出错

Question

我正在遵循有关处理学说上传和奏鸣曲管理的指南。
我只用id，路径和文件（图像）设置了我的实体：

use DoctrineORMMapping as ORM;
use SymfonyComponentValidatorConstraints as Assert;
use SymfonyComponentHttpFoundationFileUploadedFile;
/**
 * @ORMEntity
 * @ORMTable(name="viaggio_perfetto")
*/
class ViaggioPerfetto
{
    private $temp;
    /**
    * @ORMColumn(type="integer")
    * @ORMGeneratedValue(strategy="AUTO")
    * @ORMId
    */
    protected $id;

    /**
     * @ORMColumn(type="string", length=255, nullable=true)
     */
    protected $path;
    /**
     * @AssertFile(maxSize="6000000")
     */
    protected $file;
    /**
     * Get file.
     *
     * @return UploadedFile
     */
    public function getFile()
    {
        return $this->file;
    }
    /**
     * Sets file.
     *
     * @param UploadedFile $file
     */
    public function setFile(UploadedFile $file = null)
    {
        $this->file = $file;
        // check if we have an old image path
        if (isset($this->path)) {
            // store the old name to delete after the update
            $this->temp = $this->path;
            $this->path = null;
        } else {
            $this->path = 'initial';
        }
    }
    /**
     * @ORMPrePersist()
     * @ORMPreUpdate()
     */
    public function preUpload()
    {
        if (null !== $this->getFile()) {
            // do whatever you want to generate a unique name
            $filename = sha1(uniqid(mt_rand(), true));
            $this->path = $filename.'.'.$this->getFile()->guessExtension();
        }
    }
    /**
     * @ORMPostPersist()
     * @ORMPostUpdate()
     */
    public function upload()
    {
        if (null === $this->getFile()) {
            return;
        }
        // if there is an error when moving the file, an exception will
        // be automatically thrown by move(). This will properly prevent
        // the entity from being persisted to the database on error
        $this->getFile()->move($this->getUploadRootDir(), $this->path);
        // check if we have an old image
        if (isset($this->temp)) {
            // delete the old image
            unlink($this->getUploadRootDir().'/'.$this->temp);
            // clear the temp image path
            $this->temp = null;
        }
        $this->file = null;
    }
    /**
     * @ORMPostRemove()
     */
    public function removeUpload()
    {
        $file = $this->getAbsolutePath();
        if ($file) {
            unlink($file);
        }
    }
    public function getAbsolutePath()
    {
        return null === $this->path
            ? null
            : $this->getUploadRootDir().'/'.$this->path;
    }
    public function getWebPath()
    {
        return null === $this->path
            ? null
            : $this->getUploadDir().'/'.$this->path;
    }
    protected function getUploadRootDir()
    {
        // the absolute directory path where uploaded
        // documents should be saved
        return __DIR__.'/../../../../web/'.$this->getUploadDir();
    }
    protected function getUploadDir()
    {
        // get rid of the __DIR__ so it doesn't screw up
        // when displaying uploaded doc/image in the view.
        return 'uploads/documents';
    }
    /**
     * Get id
     *
     * @return integer
     */
    public function getId()
    {
        return $this->id;
    }

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

我删除了一些文件以更好地阅读实体。
对于这个实体，我遵循了symfony食谱。
web/uploads 下的文件夹具有 777 权限。

然后我添加到奏鸣曲管理员：

protected function configureFormFields(FormMapper $formMapper)
{
    $formMapper->add('title', 'text');
    $formMapper->add('text', 'text');
    $formMapper->add('startDate', 'date');
    $formMapper->add('endDate', 'date');
    $formMapper->add('active', 'checkbox', array('required' => false));
    $formMapper->add('file', 'file');
}
protected function configureDatagridFilters(DatagridMapper $datagridMapper)
{
    $datagridMapper->add('text');
}
protected function configureListFields(ListMapper $listMapper)
{
    $listMapper->addIdentifier('title');
    $listMapper->add('text');
}

现在我登录Sonata管理页面并尝试创建新实体。
一切正常，我在我的数据库中拥有除文件以外的所有字段权限。
web/uploads/documents下没有文件，数据库中的路径中没有路径（如果未设置路径，我在SetFile函数中设置了"初始"）。

我不知道我错在哪里。感谢您的帮助。

Answer 1

问题是你从不调用实体的upload方法。

将以下方法添加到您的管理类（奏鸣曲）：

/**
 * Handles file upload on create.
 *
 * @param object $created The newly created entity
 */
public function prePersist($created)
{
    $created->upload();
}
/**
 * Handles file upload on update.
 *
 * @param object $updated The updated entity
 */
public function preUpdate($updated)
{
    $updated->upload();
}

它应该有效。

这将在持久/更新实体之前调用实体的 upload 方法。

请参阅奏鸣曲文件上传配方的相应部分。

Answer 2

您必须添加

* @ORMHasLifecycleCallbacks

阻止

/**
 * @ORMEntity
 * @ORMTable(name="viaggio_perfetto")
*/

供使用

/**
* @ORMPrePersist()
* @ORMPreUpdate()
*/