Google Apps Script for Forms: Want to send users specific number on email

Question

It is possible to ask users to write their email addresses in FORM and after that they recieve email with unique number?

I find out how to send automatic email to submitter here - http://www.labnol.org/internet/auto-confirmation-emails/28386/

But don't know how to send to him unique number each!

Answer 1

you could try the above code to retrieve the unique id of the form response. But it's not sorted numbers(1,2,...). It's a unique random number generated by the form. my advice is not to try to build something starting to 1 and going further, as it's assynchronious you do not have the security to to have a sorted list of items. see here for details.

/**
* for a form with 2 question named "question 1" and "question 2"
* this function need to be associated directly to the form
* and it need to be associated to a trigger "on form submit"
* the "e" given as argument is generated by the form submit trigger
*/
function submitFormFunc(e) {
  var items = e.response.getItemResponses();
  var responses={};
  for(var i = 0; i< items.length; i++) {
   responses[items[i].getItem().getTitle()]=items[i].getResponse();
  }

  var responseTable = [];
  var responseIndex = ["Timestamp","ID","question 1","question 2"];
  responseTable.push(e.response.getTimestamp().toString());
  responseTable.push(e.response.getId());
  responseTable.push(responses["question 1"]); // my form have 2 questions named "question 1" and "question 2"
  responseTable.push(responses["question 2"]);
  responseTable.push(FormApp.getActiveForm().getResponse(e.response.getId()).getEditResponseUrl());
  SpreadsheetApp.openById("YOUR_SPREADSHEET_ID").appendRow(responseTable);
}

--EDIT--

if You want something shorter you can use the time stamp:

change (or add) responseTable.push(e.response.getTimestamp().toString()); for

responseTable.push(e.response.getTimestamp().getTime().toString());

or even shorter but a little less efficient:

you can add a line:

responseTable.push(generateUnique());

and add the function:

function generateUnique(){
  var vals =  SpreadsheetApp.openById("YOUR_SPREADSHEET_ID").getRange("A:A").getValues();
  var ids=[];
  for(var i in vals){
    ids.push(vals[0]);
  }
  var newId = Math.floor(Math.random()*100); // change 100 for something bigger if needed
  while(ids.indexOf(newId)>-1){
    newId = Math.floor(Math.random()*100);
  }
  Logger.log(newId);
  return(newId);
}