jQuery fileupload动态创建表单并发送到s3

Question

我想通过ajax发送表单上传通过jquery-fileupload添加的文件。我的问题是当我试图覆盖我想要的add（）函数时：

1. 为文件创建数据库对象
2. 创建动态表单
3. 将fileupload中的一个文件附加到创建的表单

4. 通过ajax发送到s3

   add: (event, data) ->
   # send each file to the s3
   for file in data.files
       $.ajax({
           url: "/attachments",
           data: { ... }
           type: "POST",
           processData: false,
           dataType: "json",
           async: false,
           success: (retdata) ->
               # now when object in db has been created i want to send a file
               s3Data = retdata
               s3Form = $("<form>", {
                   id: "avatar-form",
                   action:  "#{s3Data.schema}://#{s3Data.host}",
                   method: s3Data.method,
                   enctype: "multipart/form-data",
                   acceptCharset: "UTF-8"
               })
               # create inputs for files
               for key, value of s3Data.formdata
                   s3Form.append("<input type=\"hidden\" name=\"#{key}\" value=\"#{value}\"/> ")
   
               # here i have my file object from the loop and also access to the
               # data.form, which is jquery file upload form
               # how to extract files from form, and append it to the new s3Form
   
               s3Form.ajaxForm({})
               s3Form.submit()
   

如何将附件转移到一个表格到第二表格？

Answer 1

我猜输入fileupload对象可以通过js访问：http://www.w3schools.com/jsref/dom_obj_fileupload.asp但是表单可能需要先附加到文档中。