Upload and Database Question

[eluser]gRoberts[/eluser]
I usually check the $_FILES array before calling the CI Upload class, i.e.

Code:

if(isset($_FILES['userfile']) && $_FILES['userfile']['size'] > 0)
{
// upload file
// set $data['file'] = $image_data['file_name'];
}

this way, only if you actually upload something does it set the `$data['file']` value.