Symfony VichUploaderBundle:无法生成文件名 [英] Symfony VichUploaderBundle: File name could not be generated

问题描述

我正在使用VichUploader在symfony项目中上传文件.在配置中，我使用(从文档中复制):

I am using VichUploader to upload files within a symfony project. In configuration i use (copied from documentation):

service: vich_uploader.namer_property
options: { property: 'slug'}

在我的实体中，我会使用Gedmo/Sluggable自动生成弹头:

In my entity i generate the slugs automatically with Gedmo/Sluggable:

/**
 * @Gedmo\Slug(fields={"title"}, updatable=false)
 * @ORM\Column(type="string", length=100, nullable=false)
 */
protected $slug;

但是当尝试保存实体时，出现以下错误500:

But when trying to save the entity i get the following error 500:

无法生成文件名:属性slug为空.

File name could not be generated: property slug is empty.

如果我将属性设置为"title"，则可以使用.我是否忘记了配置参数或其他使它与Gedmo slug配合使用的东西?

If i set the property to 'title' it works. Did i forget a configuration parameter or something else to get it working with the Gedmo slug?

推荐答案

此刻，我遇到了同样的问题，作为一种解决方法，我对实体类中的sl子吸气剂做了些改动:

I'm having the same issue at the moment, as a workaround, I've slightly changed the slug getter in the entity class:

use Gedmo\Sluggable\Util\Urlizer;

class Event
{
    // ...

    /**
     * @var string
     *
     * @Gedmo\Slug(fields={"name"})
     * @ORM\Column(name="slug", type="string", length=128, unique=true)
     */
    private $slug;

    // ...

    public function getSlug()
    {
        if (!$this->slug) {
            return Urlizer::urlize($this->getName());
        }

        return $this->slug;
    }
}

做到了.

不幸的是，有两个缺点:

Unfortunately, there're a couple of drawbacks:

1. 如果您想在批注中更新可拖动行为以包括其他属性，则还必须更新getter.
2. 此方法缺乏对数据库的检查:如果数据库中已经存在一个具有相同名称urlizer的记录，则无法在文件名中添加增量，则先前保存的文件可能会被覆盖！解决方法是，您可以将unique=true添加到易滞属性.

1. If you ever want to update sluggable behaviour in the annotation to include additional properties, you'll have to update the getter as well.
2. This method lacks a check against the database: if there's already a record in the database with the same name urlizer in the getter won't be able to add an increment to the file name, previously saved file may be overwritten! As a workaround, you can add unique=true to sluggable properties.

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