Manage a Google spreadsheet with many user can be difficult. This script will help you to automatically fill rows in specific columns to get the last modification date & the username of the user who made these changes.
Full documentation here
To test this script just copy the code inside the google scripts editor:
function onEdit(e) {
// Fill variables below with the columns letters you want to fill with the date and username of the last modification --------------------------------------------------------------------------
var last_modif_date = 'K'
var last_modif_username = 'L'
//---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
var s = SpreadsheetApp.getActiveSheet();
var r = s.getActiveCell();
if( r.getColumn() != 11 ) { //checks the column
var row = r.getRow();
var headerRows = 1; // # header rows to ignore
if (r.getRow() <= headerRows) return;
var time = new Date();
time = Utilities.formatDate(time, "UTC+1", "yyyy-MM-dd");
SpreadsheetApp.getActiveSheet().getRange(last_modif_date + row.toString()).setValue(time);
var email = Session.getEffectiveUser().getEmail()
Logger.log(email);
SpreadsheetApp.getActiveSheet().getRange(last_modif_username + row.toString()).setValue(getUserEmail())
}
}
//Function to remove protections and print current active user
function getUserEmail() {
var userEmail = PropertiesService.getUserProperties().getProperty("userEmail");
if(!userEmail) {
var protection = SpreadsheetApp.getActive().getRange("A1").protect();
// tric: the owner and user can not be removed
protection.removeEditors(protection.getEditors());
var editors = protection.getEditors();
if(editors.length === 2) {
var owner = SpreadsheetApp.getActive().getOwner();
editors.splice(editors.indexOf(owner),1); // remove owner, take the user
}
userEmail = editors[0];
protection.remove();
// saving for better performance next run
PropertiesService.getUserProperties().setProperty("userEmail",userEmail);
}
return userEmail;
}
Fill lines below and add the letters to identify the columns which will be filled when a row is modified
var last_modif_date = 'K'
var last_modif_username = 'L'
Then click on save.
That should work :)