How to put a username to the cell , who made the last modification of the row?

Question

I have a code, it inserts the last modification to the current row in the specified cell. And i need to insert the time in one cell, and the name of the user who made ​​the chan

Answer 1

Here is a code I use to track changes on a spreadsheet, the onEdit() function is a simple trigger, the alert() function is an installable onEdit trigger since it need authorization.

function onEdit(event){
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sh = event.source.getActiveSheet();
  var r = event.source.getActiveRange();
  r.setComment("Last modified: " + (new Date())+' by '+Session.getActiveUser());
  ss.toast('Dernière cellule modifiée = '+r.getA1Notation()+' par '+Session.getActiveUser());
}

function alert(){
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var cell = ss.getActiveCell().getA1Notation()
      if(Session.getActiveUser()!='me@mymail.com'){
  MailApp.sendEmail('me@mymail.com', 'Modification dans le planning', 'la case '+cell+' du document a été modifiée par '+Session.getActiveUser());
} 
}