async rename

[benkaiser]

Hello,

I noticed the rename function uses a return value. Can this be done inside a callback? or would it simply return undefined? I need to fetch an ID for the image which would be a database call like so:

rename: function (fieldname, filename) {
  getNextPhotoId(function(id){
    return id + ".jpg";
  }
}

is this possible with multer?

[mdaffin]

That won't work as getNextPhotoId will return before your callback has even started.

You probably want to use onFileUploadComplete instead and rename the file your self in the callback.

onFileUploadComplete: function (file) {
  getNextPhotoId(function(id){
    fs.rename(file, id + ".jpg", function(err) {
      // Handel error and any further code
    });
  }
}

[benkaiser]

@James147 awesome. Thanks for the tip.