Usage of setRange() in Google Apps Script Protection Class - google-apps-script

Question

I'm trying to alter the dimensions of a protected range but keep getting:
"Cannot find method setRange(string)"
The Google Developers site doesn't give any examples.
See: https://developers.google.com/apps-script/reference/spreadsheet/protection#setrangerange
How should I be using setRange() in the code below?
function editIt() {
var ss = SpreadsheetApp.getActive();
var protections = ss.getProtections(SpreadsheetApp.ProtectionType.RANGE);
for (var i = 0; i < protections.length; i++) {
var protection = protections[i];
if (protection.getRangeName() == 'Test') {
var range = 'A7:A28';
protection.setRange(range);
}
}
}

Answer 1

setRange() takes a range object, not just a string with range dimesions. So you have to get a range object using sheet.getRange(a1Notation). Your code would be this
function editIt() {
var ss = SpreadsheetApp.getActive();
var sheet = ss.getActiveSheet(); // additional line to get sheet
var protections = ss.getProtections(SpreadsheetApp.ProtectionType.RANGE);
for (var i = 0; i < protections.length; i++) {
var protection = protections[i];
if (protection.getRangeName() == 'Test') {
var range = sheet.getRange('A7:A28'); // edited line
protection.setRange(range);
}
}
}