Google Sheets Script: Insert New Row In Named Range - google-apps-script

Question

I use Named Ranges a lot, for sheets Data Validation etc. I'm adding 'Saved Comparisons' (cell H3) to a stock comparison sheet:
Although untested yet, I've almost created a function to Save or Update the current comparison to a Named Range Compare_Saved:
However, I'm stuck at how to add a New Row to the Named Range, and/or then select the required Row in the Range to update it. The problem is described in the indented section of the code below, commented with // ***** (may need to scroll down to see it):
function compareSaveNew() { compareSave('new'); } // button call
function compareSaveUpdate() { compareSave('update'); } // button call
function compareSave(mode){
const srcSheet = 'Compare';
const dataSheet = 'Data';
const ss = SpreadsheetApp.getActiveSpreadsheet();
const sSrc = ss.getSheetByName(srcSheet);
const sData = ss.getSheetByName(dataSheet);
const ui = SpreadsheetApp.getUi();
var promptMsg='', data, rv, rUpdate;
// Check/confirm if adding new, or updating
if ( mode == 'update' && src.getRange('Compare_SavedUsed') == 'Select Comparison' ) {
promptMsg = 'A Saved Comparison has not been selected. Cancel, or enter a New Name: ';
} else if ( mode == 'new' && src.getRange('Compare_SavedUsed') != 'Select Comparison' ) {
promptMsg = 'A Saved Comparison has been selected. Cancel and use [UPDATE],\nOR\n' +
'enter a New Name if you want to Save a new Comparison based on this one: ';
} else {
promptMsg = 'New Name for Saved Comparison: ';
}
var newName = ui.prompt('New Name for Saved Comparison: ');
if (!newName) {return;} // Exit, Save/Update cancelled
// Check newName is unique
data = sData.getRange('Compare_Saved');
for(var i = 0; i<data.length;i++){
if( data[i][0] == newName ) { rv = true; break; }
}
if (rv) {ui.alert('"' + newName + '" aleady exists.'); return;} // Exit, new name exists
// *****
// Create New row in Named Range
if (mode=='new') {
// add row to range - how ???
}
// Get new/existing row as range from Named Range to update
// var rUpdate = sData.getRange( ??? );
// *****
var newSave=[];
newSave.push([
newName,
'', // left blank, so name can overflow to this col in Data sheet
sSrc.getRange('Compare_Period'),
sSrc.getRange('Compare_Frequency'),
sSrc.getRange('Compare_From'),
sSrc.getRange('Compare_To'),
sSrc.getRange('Compare_Index'),
sSrc.getRange('Compare_Stock1'),
sSrc.getRange('Compare_Stock2'),
sSrc.getRange('Compare_Stock3'),
sSrc.getRange('Compare_Stock4')
]);
rUpdate.setValues(newSave);
return true;
}
Apologies if this post is a bit verbose, but any pointers would be appreciated.

Answer 1

How about remove() and addNew() namedRanges

Answer 2

Adapted code I found by #Cooper (thanks!) for my specific needs, which returns new row num, or row num to be updated, depending on mode:
function compareAddOrFindRowInNR(namedRange,newName,mode){
// Purpose: Add a new row in Named Range and return row num, OR return existing row num
// Credit: #Cooper at https://stackoverflow.com/a/60011251/190925
const ss = SpreadsheetApp.getActiveSpreadsheet();
// Get the NR
var nrAll = ss.getNamedRanges()
for (var i=0; i<nrAll.length; i++) {
if( nrAll[i].getName() == namedRange ) {
var nr = nrAll[i];
var h = nr.getRange().getHeight(); Logger.log('h: '+h)
var row= nr.getRange().getRow(); Logger.log('row: '+row)
var w = nr.getRange().getWidth(); Logger.log('w: '+w)
var col= nr.getRange().getColumn(); Logger.log('col: '+col)
var sh = nr.getRange().getSheet(); Logger.log('sh: '+sh)
// Create new row in NR, or find existing row
if (mode=='new') {
var updateNR = sh.getRange(row,col,h+1,w);
ss.setNamedRange(namedRange,updateNR); // doesn't set Sheet?
var rowUpdate = row+h;
} else {
data = nr.getRange().getValues();
for (var i=0; i<data.length; i++) {
Logger.log(data[i][0]);
if( data[i][0] == newName ) {
var rowUpdate = row+i;
break;
}
}
}
break;
}
}
Logger.log('rowUpdate: '+rowUpdate);
return rowUpdate;
}