I'm creating an input form for users so that they can input various bits of info into a db. One of the fields is so that they can upload a file, which puts the file onto the web server and the path to it into the db. The problem is if anyone edits the data after a file has been uploaded, the path to the file gets overwritten in the db with an empty string. I get round this problem in all other entry fields by pulling the data out the db and putting in the form entry box, but can't find a way to do this using the input type = "file" tag. Does anyone know how to do this?

Why can't you pull the data out for the file location and put that in the entry field if it's just a text url?. you can do an if else statement so if that field is blank in the form it doesn't execute the write to database action for that specific field