You may check this Script for generating Google documents from Google spreadsheet data source tutorial.
/**
* Generate Google Docs based on a template document and data incoming from a Google Spreadsheet
*
* License: MIT
*
* Copyright 2013 Mikko Ohtamaa, http://opensourcehacker.com
*/
// Row number from where to fill in the data (starts as 1 = first row)
var CUSTOMER_ID = 1;
// Google Doc id from the document template
// (Get ids from the URL)
var SOURCE_TEMPLATE = "xxx";
// In which spreadsheet we have all the customer data
var CUSTOMER_SPREADSHEET = "yyy";
// In which Google Drive we toss the target documents
var TARGET_FOLDER = "zzz";
/**
* Return spreadsheet row content as JS array.
*
* Note: We assume the row ends when we encounter
* the first empty cell. This might not be
* sometimes the desired behavior.
*
* Rows start at 1, not zero based!!! 🙁
*
*/
function getRowAsArray(sheet, row) {
var dataRange = sheet.getRange(row, 1, 1, 99);
var data = dataRange.getValues();
var columns = [];
for (i in data) {
var row = data[i];
Logger.log("Got row", row);
for(var l=0; l<99; l++) {
var col = row[l];
// First empty column interrupts
if(!col) {
break;
}
columns.push(col);
}
}
return columns;
}
/**
* Duplicates a Google Apps doc
*
* @return a new document with a given name from the orignal
*/
function createDuplicateDocument(sourceId, name) {
var source = DocsList.getFileById(sourceId);
var newFile = source.makeCopy(name);
var targetFolder = DocsList.getFolderById(TARGET_FOLDER);
newFile.addToFolder(targetFolder);
return DocumentApp.openById(newFile.getId());
}
/**
* Search a paragraph in the document and replaces it with the generated text
*/
function replaceParagraph(doc, keyword, newText) {
var ps = doc.getParagraphs();
for(var i=0; i<ps.length; i++) {
var p = ps[i];
var text = p.getText();
if(text.indexOf(keyword) >= 0) {
p.setText(newText);
p.setBold(false);
}
}
}
/**
* Script entry point
*/
function generateCustomerContract() {
var data = SpreadsheetApp.openById(CUSTOMER_SPREADSHEET);
// XXX: Cannot be accessed when run in the script editor?
// WHYYYYYYYYY? Asking one number, too complex?
//var CUSTOMER_ID = Browser.inputBox("Enter customer number in the spreadsheet", Browser.Buttons.OK_CANCEL);
if(!CUSTOMER_ID) {
return;
}
// Fetch variable names
// they are column names in the spreadsheet
var sheet = data.getSheets()[0];
var columns = getRowAsArray(sheet, 1);
Logger.log("Processing columns:" + columns);
var customerData = getRowAsArray(sheet, CUSTOMER_ID);
Logger.log("Processing data:" + customerData);
// Assume first column holds the name of the customer
var customerName = customerData[0];
var target = createDuplicateDocument(SOURCE_TEMPLATE, customerName + " agreement");
Logger.log("Created new document:" + target.getId());
for(var i=0; i<columns.length; i++) {
var key = columns[i] + ":";
// We don't replace the whole text, but leave the template text as a label
var text = customerData[i] || ""; // No Javascript undefined
var value = key + " " + text;
replaceParagraph(target, key, value);
}
}
As @James Donnellan stated, please check the official documentation on how to use the service which allows scripts to create, access, and modify Google Sheets files.