I want to know how to find out the top level directory parent of a file (which resides under "My Drive"). Files are stored under multi-level sub-folders.
Since I have the same file stored in multiple places, I want to make sure that the source of the file that I am picking up is the right one. I have made a really dirty hack, which is time consuming which looks like this:
function start() { var files = DriveApp.searchFiles("(title contains 'Worksheet')"); while (files.hasNext()) { var file = files.next(); var fileName = file.getName(); var whichParents = getAllParents(file); // process whichParents to use indexOf to look for a substring in retStr and move forward.}function getAllParents(file) { var retStr=""; try{ var folder; var parents = file.getParents(); while(1) { while (parents.hasNext()) { var parent = parents.next(); folder=parent; retStr = retStr + parent.getName() +"->"; if(parent.getName() == "My Drive") throw Exception; } parents = folder.getParents(); } } catch(e){ return retStr; }}I have looked through StackExchange for quite some time to figure out why an exception is generated, to no avail. Appreciate any help on this!