尝试从命名空间“Application\MediaBundle\Entity”加载类“Media”

Posted 2023-02-16

【中文标题】尝试从命名空间“Application\\MediaBundle\\Entity”加载类“Media”

【英文标题】：Attempted to load class "Media" from namespace "Application\MediaBundle\Entity"尝试从命名空间“Application\MediaBundle\Entity”加载类“Media”

【发布时间】：2017-03-23 01:14:16

【问题描述】：

我想在我的管理类中添加个人资料图片，但出现此错误：

尝试从命名空间“Application\MediaBundle\Entity”加载类“Media”。 您是否忘记了“使用”声明，例如“Sonata\MediaBundle\Model\Media”、“Sonata\MediaBundle\Tests\Entity\Media”、“Sonata\MediaBundle\Tests\Document\Media”还是“Sonata\MediaBundle\Tests\phpCR\Media”？

我搜索了很多但没有解决方案。 这是我的代码

用户实体

>  /**
>      * @var \Application\Sonata\MediaBundle\Entity\Media
>      * @ORM\ManyToOne(targetEntity="Application\Sonata\MediaBundle\Entity\Media",
> cascade="persist", fetch="LAZY")
>      */
>     protected $media;
> 
>     /**
>      * Set media
>      *
>      * @param \Application\Sonata\MediaBundle\Entity\Media $media
>      * @return User
>      */
>     public function setMedia(\Application\Sonata\MediaBundle\Entity\Media $media = null)
>     
>         $this->media = $media;
> 
>         return $this;
>     
> 
>     /**
>      * Get media
>      *
>      * @return \Application\Sonata\MediaBundle\Entity\Media
>      */
>     public function getMedia()
>     
>         return $this->media;
>     

用户管理员

 /**
     * @param \Sonata\AdminBundle\Form\FormMapper $formMapper
     *
     * @return void
     */
    protected function configureFormFields(FormMapper $formMapper)
    
        $formMapper
            ->with('General')
            ->add('username')
            ->add('email')
            ->add('enabled')
            ->add('firstname')
            ->add('lastname')
            ->add('plainPassword', 'password', array(
                'required' => (!$this->getSubject() || is_null($this->getSubject()->getId())),
            ))
            ->add('media', 'sonata_media_type', array('provider' => 'sonata.media.provider.image', 'context' => 'engine', 'data_class' => 'Application\Sonata\MediaBundle\Entity\Media', 'required' => false))
            ->end();
    

config.yml

# app/config/config.yml

sonata_media:
    class:
        media: Application\MediaBundle\Entity\Media
        gallery: Application\MediaBundle\Entity\Gallery
        gallery_has_media: Application\MediaBundle\Entity\GalleryHasMedia
    # if you don't use default namespace configuration
    #class:
    #    media: MyVendor\MediaBundle\Entity\Media
    #    gallery: MyVendor\MediaBundle\Entity\Gallery
    #    gallery_has_media: MyVendor\MediaBundle\Entity\GalleryHasMedia
    db_driver: doctrine_orm # or doctrine_mongodb, doctrine_phpcr it is mandatory to choose one here
    default_context: default # you need to set a context
    contexts:
        default:  # the default context is mandatory
            providers:
                - sonata.media.provider.dailymotion
                - sonata.media.provider.youtube
                - sonata.media.provider.image
                - sonata.media.provider.file
                - sonata.media.provider.vimeo

            formats:
                small:  width: 100 , quality: 70
                big:    width: 500 , quality: 70
        # other contexts here
        engine:
            providers:
                - sonata.media.provider.image

            formats:
                preview:    width: 100, quality: 100
                small:      width: 200, quality: 100
                large:      width: 600, quality: 100
    cdn:
        server:
            path: /uploads/media # http://media.sonata-project.org/

    filesystem:
        local:
            directory:  "%kernel.root_dir%/../web/uploads/media"
            create:     false
    providers:
        image:
            resizer: sonata.media.resizer.square

doctrine:
    orm:
        entity_managers:
            default:
                mappings:
                    FOSUserBundle: ~
                    SonataMediaBundle: ~
    dbal:
        types: #this is about this line and line below
            json:     \Doctrine\DBAL\Types\StringType
doctrine_phpcr:
    odm:
        auto_mapping: true
        mappings:
            SonataMediaBundle:
                prefix: Sonata\MediaBundle\PHPCR

这是tutoruial 有什么帮助吗？ 对不起英语

【参考方案1】：

问题出在配置文件config.yml

> sonata_media:
>     class:
>         media: Application\Sonata\MediaBundle\Entity\Media
>         gallery: Application\Sonata\MediaBundle\Entity\Gallery
>         gallery_has_media: Application\Sonata\MediaBundle\Entity\GalleryHasMedia
>         category:   Application\Sonata\ClassificationBundle\Entity\Category