retrieve google forms edit urls and maintain existing data structure - google-apps-script

Question

I am interested in making some alterations to a snippet of the code that allows you to record URLs to edit Google Form's responses.
What I wish to achieve is a repeatable automated process of receiving those URLs upon form submit. However, one condition that I want to follow is to have those URLs pasted in the first column of the spreadsheet, maintaining the integrity of existing data in the following columns.
I think it is the only viable option for me, as the form is still in the development stage, and may receive more variables as the time progresses.
I have attempted:
Manually inserting a column in the Responses' Google Sheet and then try to setup the assignEditUrls{} function, but it yields no results.
Using a one time mini-function to insert the left most column, and then run the code. Also produced no results, unless it was included in the main function, which then inserts the leftmost column every time there is a submission.
Here's that:
function insertLeftMostColumn(){
//insert a column before the first one
sheet.insertColumnBefore(1);
//rename the header for the new column
var cell = sheet.getRange("A1");
cell.setValue("columnName");
}
This is the function.
function assignEditUrls() {
var form = FormApp.openById('1cg7bGRQjsv91sSCjYCwNJyoB3wN_MZ_9raV3tP3v1MA');
//enter form ID here
var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Form Responses 1');
var lastColumn = sheet.getLastColumn(); // This logs the value of the very last column of this sheet (without the values)
//Change the sheet name as appropriate
var data = sheet.getDataRange().getValues();
var urlCol = 5;
var responses = form.getResponses();
var timestamps = [], urls = [], resultUrls = [];
for (var i = 0; i < responses.length; i++) {
timestamps.push(responses[i].getTimestamp().setMilliseconds(0));
urls.push(responses[i].getEditResponseUrl());
}
for (var j = 1; j < data.length; j++) {
resultUrls.push([data[j][0]?urls[timestamps.indexOf(data[j][0].setMilliseconds(0))]:'']);
}
sheet.getRange(2, urlCol, resultUrls.length).setValues(resultUrls);
}
current result
expected result

Answer 1

If my understanding is right, you want to know how to insert the edit URLs in the first column instead of the last one.
If so, you need to implement some small modifications in your code:
Insert an empty column into the sheet, e.g. with the function insertLeftMostColumn(), as you intended above. Keep in mind that if you want to run the function only once, it needs to be called separately from assignEditUrls(), so you have to define sheet one more time within the function
urlCol is the column number, where the URLs shall be pasted. To change the column to the first one, modify var urlCol = 5; to var urlCol = 1;
data[j][0]?urls[timestamps.indexOf(data[j][0] tries to find timestamps in the first column.
Given that you inserted an empty column and the timestamps have been shifted to the second column - you need to change the code to data[j][1]?urls[timestamps.indexOf(data[j][1];
If you want the new URLs to be inserted every time upon form submit, you need to incorporate into your assignEditUrls() function a Form Submit trigger. Here you can find information about how to incorporate installable triggers.