jquery - 将 jquery fileupload 与 CoffeeScript 一起使用 - 使用添加回调时调整图像大小

Question

已解决 原来application.js中js加载的顺序是错误的:

original:
//= require jquery-fileupload/jquery.fileupload-process
//= require jquery-fileupload/jquery.fileupload-image
//= require jquery-fileupload/jquery.fileupload-validate

correct version:
//= require jquery-fileupload/jquery.fileupload-process
//= require jquery-fileupload/jquery.fileupload-validate
//= require jquery-fileupload/jquery.fileupload-image

我正在尝试使用 BlueImp 的 jquery fileuploader，并且我已经成功地让一切正常工作，但调整大小除外。

我正在尝试在添加回调中调整图像大小，然后提交以避免任何服务器端处理。

我知道使用添加回调会导致流程函数被跳过，但我在添加回调本身中手动调用了该函数，它应该可以工作，但事实并非如此。

这是我的代码:

$('.jquery-fileupload').fileupload
  dataType: "script"
  imageMaxWidth: 480
  imageMaxHeight: 360
  disableImageResize: false
  autoUpload: false
  process:[
    {
      action: 'load',
      fileTypes: /^image\/(gif|jpeg|png)$/,
      maxFileSize: 20000000
    },
    {
      action: 'resize',
      maxWidth: 480, // the images are to be loaded into a pdf later so they have to be skept small
      maxHeight: 360,
      minWidth: 480,
      minHeight: 360
    },
    {
      action: 'save'
    }
  ]
  progress: (e, data) ->
    progress = parseInt(data.loaded / data.total * 100, 10);
    $('#progress_'+data.formData.token+' .bar').css('width', progress+'%')

  add: (e, data) ->
    unique_token = token();
    if (data.files && data.files[0])
      if(data.files[0].size < 200000000)
        if(data.files[0].type.substr(0, data.files[0].type.indexOf('/')) != 'image')
          alert("Please upload a file with the correct format")
        else
          current_data = $(this)
          data.process(->
            return current_data.fileupload('process', data); //call the process function
          ).done(->
            data.formData = {token: unique_token};
            data.context = $('.preview:last');
            data.context.find('.abort').click(abortUpload);
            xhr = data.submit();
            data.context.data('data',{jqXHR: xhr});
          )
      else
        alert("one of your files is over 200MB")
  done: (e, data) ->
    console.log(data);

任何对此问题的帮助将不胜感激，因为我已经为此连续两天用头撞 table 了!

编辑 忘了提及，这是我的 js 文件:

//= require jquery-fileupload/vendor/jquery.ui.widget
//= require jquery-fileupload/vendor/load-image
//= require jquery-fileupload/vendor/canvas-to-blob
//= require jquery-fileupload/jquery.iframe-transport
//= require jquery-fileupload/jquery.fileupload
//= require jquery-fileupload/jquery.fileupload-ui
//= require jquery-fileupload/jquery.fileupload-process
//= require jquery-fileupload/jquery.fileupload-image
//= require jquery-fileupload/jquery.fileupload-validate
//= require jquery-fileupload/vendor/tmpl
//= require jquery-fileupload/locale

Answer 1

已解决事实证明application.js中加载js的顺序是错误的:

原文:

//= require jquery-fileupload/jquery.fileupload-process
//= require jquery-fileupload/jquery.fileupload-image
//= require jquery-fileupload/jquery.fileupload-validate

正确版本:

//= require jquery-fileupload/jquery.fileupload-process
//= require jquery-fileupload/jquery.fileupload-validate
//= require jquery-fileupload/jquery.fileupload-image