rails 如何在 webpacker 上使用 uppy 插件

Question

我正在尝试在 rails 上将 uppy 与 webpacker 结合使用，但我无法让 uppy 工作：

//  app/javascripts/src/javascript/my_scripts.js    
const Uppy = require('@uppy/core')
const DragDrop = require('@uppy/drag-drop')
const ProgressBar = require('@uppy/progress-bar')

const uppyOne = new Uppy({debug: true, autoProceed: true})
uppyOne.use(DragDrop, { target: '.UppyDragDrop-One' })

这是我收到的控制台错误：

[Uppy] [23:29:46] Not installing DragDrop
Plugin.js:165 Uncaught Error: Invalid target option given to DragDrop. Please make sure that the element 
      exists on the page, or that the plugin you are targeting has been installed. Check that the <script> tag initializing Uppy 
      comes at the bottom of the page, before the closing </body> tag (see https://github.com/transloadit/uppy/issues/1042).
    at DragDrop.mount (Plugin.js:165)
    at DragDrop.install (index.js:204)
    at Uppy.use (index.js:901)
    at Object.<anonymous> (uppy.js:6)
    at __webpack_require__ (bootstrap a698a4c3b9adcd1bf843:19)
    at Object.<anonymous> (application.js:1)
    at __webpack_require__ (bootstrap a698a4c3b9adcd1bf843:19)
    at bootstrap a698a4c3b9adcd1bf843:62
    at bootstrap a698a4c3b9adcd1bf843:62

Answer 1

我发现问题是因为在 rails 中，您通常 link 布局文件头部的所有 JS 文件，但带有 class '.UppyDragDrop' 的元素尚未渲染。

解决需要在出现DragDrog元素后通过javascript_pack_tag单独link到javascript

rails 如何在 webpacker 上使用 uppy 插件

How to use uppy plugin with webpacker on rails

ruby-on-rails

webpacker