netlify-cms - 将随机值返回给字段值为空的数据

Question

我正在使用 11ty 和 netlify-cms 开发重定向生成器，并将数据存储在shorturls.json文件中。

我的 config.yml 看起来像这样：

collections:
  - name: "config"
    label: "Admin"
    description: "Administer site settings"
    create: false
    editor:
      preview: false
    files: 
      - label: short urls
        name: shorturls
        file: "_src/_data/shorturls.json"
        widget: "object"
        fields:
          - label: "Short urls"
            label_singular: "Short url"
            name: "go"
            widget: "list"
            fields: 
              - { label: "From", name: "from", widget: "string", required: false }
              - { label: "To", name: "to", widget: "string" }
              - { label: "Redirect type", name: "status", widget: "hidden", default: "301" }

我的 json 结构如下所示：

{
  "go": [
    {
      "from": "/here",
      "to": "/there"
    },
    {
      "to": "/from-random"
    }
  ]
}

有没有办法在from字段中填充随机值？这是否需要成为自定义小部件？json 输出应如下所示：

{
  "go": [
    {
      "from": "/here",
      "to": "/there"
    },
    {
      "from": "/e6y0p13l",
      "to": "/from-random"
    }
  ]
}

谢谢