How to conditionally copy a row in google sheets to a tab in a loop but not duplicating - google-sheets

Question

Ok, complete newb here...I've searched and found various 'copy row to another sheet' scripts but can only get one to work. Here is my bodged version below. What I am trying to do is have a front sheet that displays the rows from sheet 1 where one of three criteria is met i.e column N has a status of 'Edit', 'SB Edit' or 'Amend Edit'. The below does do this but it doesn't loop and each time I run it, it repeats the action and I get duplicates of all the rows on the destination sheet.
Essentially, I want it running such that any time the status of column N for a particular row is changed to one of these three values, it shows up on Sheet 2. So Sheet 2 is a 'live' display of all rows in sheet 1 where column N equals the specified value
Any help much appreciated...
function copyrange() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheetByName('Sheet 1'); //source sheet
var testrange = sheet.getRange('N:N');
var testvalue = (testrange.getValues());
var csh = ss.getSheetByName('Sheet 2'); //destination sheet
var data = [];
var j =[];
//Condition check in N:N; If true copy the same row to data array
for (i=0; i<testvalue.length;i++) {
if ( testvalue[i] == 'Edit') {
data.push.apply(data,sheet.getRange(i+1,1,1,15).getValues());
//Copy matched ROW numbers to j
j.push(i);
}
}
//Copy data array to destination sheet
csh.getRange(csh.getLastRow()+1,1,data.length,data[0].length).setValues(data);
for (i=0; i<testvalue.length;i++) {
if ( testvalue[i] == 'Amend Edit') {
data.push.apply(data,sheet.getRange(i+1,1,1,15).getValues());
//Copy matched ROW numbers to j
j.push(i);
}
}
//Copy data array to destination sheet
csh.getRange(csh.getLastRow()+1,1,data.length,data[0].length).setValues(data);
for (i=0; i<testvalue.length;i++) {
if ( testvalue[i] == 'SB Edit') {
data.push.apply(data,sheet.getRange(i+1,1,1,15).getValues());
//Copy matched ROW numbers to j
j.push(i);
}
}
//Copy data array to destination sheet
csh.getRange(csh.getLastRow()+1,1,data.length,data[0].length).setValues(data);
//Delete matched rows in source sheet
//for (i=0;i<j.length;i++){
//var k = j[i]+1;
//sheet.deleteRow(k);
//Alter j to account for deleted rows
//if (!(i == j.length-1)) {
//j[i+1] = j[i+1]-i-1;
}

Answer 1

If you want that copy to happen when the column N is modified, it's probably best to set a trigger, like onEdit. That will give you an object with data about the event that happened, including the cell that was changed and its value.
You can then use such data to get the whole row and copy it to the other sheet, like this:
function onEdit(e) {
const statuses = ['Edit', 'SB Edit', 'Amend Edit'];
// Check if the modification happened on column N (14th column) and if the new value is one of the desired statuses
if (e.range.getColumn() === 14 && statuses.includes(e.value)) {
// Get sheets
const spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
const sheet1 = spreadsheet.getSheetByName('Sheet1');
const sheet2 = spreadsheet.getSheetByName('Sheet2');
// Get the whole row of the modified cell
const modifiedRow = sheet1.getRange(e.range.getRow(), 1, 1, sheet1.getLastColumn()).getValues();
// Append modified row to the end of Sheet2
sheet2.appendRow(modifiedRow.flat());
}
}
If you want to avoid duplicated rows in Sheet2, then you need to have a way to check whether a particular row was added to Sheet2 before.
For example, if column A has a unique identifier (ID) for rows, you can search for that ID in Sheet2 before appending a new row. If it exists, then you might want to replace it with the new values or just do nothing. If it doesn't exist, then you append the row to the end:
function onEdit(e) {
// Check if the modification happened on column N (14th column) and if the new value is one of the desired statuses
if (e.range.getColumn() === 14) {
// Specify update statuses
const addStatuses = ['Edit', 'SB Edit', 'Amend Edit'];
const removeStatuses = ['On Hold', 'Version Returned'];
// Get sheets
const spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
const sheet1 = spreadsheet.getSheetByName('Sheet1');
const sheet2 = spreadsheet.getSheetByName('Sheet2');
// Get the whole row of the modified cell
const modifiedRow = sheet1.getRange(e.range.getRow(), 1, 1, sheet1.getLastColumn()).getValues();
// Assume that ID is in column A (first column)
const modifiedRowID = modifiedRow[0][0];
// Get values from Sheet2
const columnValues = sheet2.getDataRange().getValues();
// Check if Sheet2 already has row based on the value of column A and retrieve its index
let rowIndex = -1;
for (let i = 0; i < columnValues.length; i++) {
if (columnValues[i][0] == modifiedRowID) {
rowIndex = i + 1; // JavaScript arrays indices start from 0, but Sheets row indices start from 1
break;
}
}
// If row should be added/removed to/from Sheet2
if (addStatuses.includes(e.value)) {
if (rowIndex == -1) {
// Row not found in Sheet2, so add it
sheet2.appendRow(modifiedRow.flat());
} else {
// Optional: Row found in Sheet2, so replace it with current values
sheet2.getRange(rowIndex, 1, 1, modifiedRow[0].length).setValues(modifiedRow);
}
} else if (removeStatuses.includes(e.value) && rowIndex > -1) {
// Remove row from Sheet2
sheet2.deleteRow(rowIndex);
}
}
}