ruby-on-rails – 如何在AJAX中将RecordRTC blob文件上传到Rails回形针

在客户端,用户使用 RecordRTC来录制短视频.当用户按下上传时,我将使用recorder.getBlob()获取视频的blob数据,并将其上传到我的服务器(使用Rails和 paperclip来处理文件上传).

首先,我想更改< input type ='file'> blob数据的字段值.事实证明,对于浏览器的安全性,我无法使用javascript更改它.

然后,我尝试使用AJAX：

$("#ajax-submit").on("click",function() {
    var data = new FormData();

    data.append("record",recorder.getBlob(),(new Date()).getTime() + ".webm");

    var oReq = new XMLhttprequest();
    oReq.open("POST","/records/");
    oReq.send(data);
    oReq.onload = function(oEvent) {
        if (oReq.status == 200) {
            console.log("Uploaded");
        } else {
            console.log("Error " + oReq.status + " occurred uploading your file.");
        }
    };
});

但是,它不起作用.在日志文件中,我将得到以下,无法处理：

Processing by RecordsController#create as */*
Parameters: {
  "video"=>"data:video/webm;base64,GkXfo0AgQoaBAUL3gQFC8o..."
}

如果我正常使用表单提交,我将有如下参数：

Processing by RecordsController#create as HTML
Parameters: {
    "video"=>#<ActionDispatch::http::UploadedFile:0x3b476e0 @original_filename="tesTing.mp4",@content_type="video/mp4",@headers="Content-Disposition: form-data; name=\"record\"; filename=\"tesTing.mp4\"\r\nContent-Type: video/mp4\r\n",@tempfile=#<File:a_path>>
}

我怎么能解决这个问题？

非常感谢.

def upload
  #extract the video data from params
  video = params[:video]

  # define the save path for the video. I am using public directory for the moment. 
  save_path = Rails.root.join("public/videos/#{video.original_filename}")

  # Open and write the file to file system.
  File.open(save_path,'wb') do |f|
    f.write params[:video].read
  end

  render :nothing => true
end