DriveApp parent folder

Question

There is something i just don\'t understand about the logic in DriveApp scripting..the most basic example:

var driveFile = DriveApp.getFileById(id); // makes         


        

Answer 1

because files can have more than one parent folder the parents are returned like a list or array, even if there is only one parent folder, and you have to cycle through to retrieve individual parents

// Log the name of every parent folder
 var driveFile = DriveApp.getFileById(id); 
 var parentFolder = driveFile.getParents();
 while (parentFolder.hasNext()) {
   var folder = parentFolder.next();
   Logger.log(folder.getName());
 }

if you were sure that the file has only one parent you could do something like:

var parentFolder = driveFile.getParents();
var folderName =parentFolder.next().getName()