Valums文件上传器 - 仅允许单个文件上传

Question

Is there any way to make Valums File Uploader to accept only a single file?

Right now, with multiple: false you cannot limit the number of files to upload but instead you can get the user to upload files one-by-one rather than allowing multiple selection.

I need the user to upload a single file only. If another file is being selected after uploading a file, the uploaded file should be replaced by the current one.

Can anyone help me in how to achieve this?

Answer 1

To limit uploading to only a single file, I simply used onComplete callback and I removed the upload button, hope this helps:

onComplete: function(id, fileName, responseJSON){
                $('.qq-upload-button').remove();
            }

Answer 2

I think hiding the button is not a very good option, here's what i have done.

I basically overwrote the _storeFileForLater method

 qq.FileUploaderBasic.prototype._storeFileForLater = function(id){
                  if(!this._options.multiple){ 

                       this._storedFileIds = [];
                       this._storedFileIds.push(id);
                  }
                  else{
                        this._storedFileIds.push(id);
                      }
    }

Answer 3

I force to select one file at time commenting this line

if (this._options.multiple){input.setAttribute("multiple", "multiple");} and multiple: qq.UploadHandlerXhr.isSupported(),

Answer 4

I know it's been a while since you posted this, but I just learned that the multiple: false parameter is supported in version 2.0 beta of Valums File Uploader.

You can download it here .