$config['file_name'] malfunction

[eluser]smilie[/eluser]
I am guessing (from CI userguide):

If set CodeIgniter will rename the uploaded file to this name. The extension provided in the file name must also be an allowed file type.

Therefore:

Code:

$config['file_name'] = $medewerker->solisid.".jpg";

should work.
However, you can never know what extension should it be - before file is uploaded...?

This is not tested, just stumbled upon it in the Userguide.

Regards,
Smilie