Question

Quite embarrassing really, but I tested creating a database from a spreadsheet with a modified script from this example:

function loadDatabaseFromSheet() {
  var sheet = SpreadsheetApp.openById('my_key').getSheetByName('Payroll');
  var data = sheet.getDataRange().getValues();
  data = data.splice(0, 9);                 // **this is where I went wrong**
  var keys = data[0];                       // **this actually corresponds with a blank row**
  var db = ScriptDb.getMyDb();
  for (var row = 1; row < data.length; row++) {
    var rowData = data[row];
    var item = {};
    for (var column = 0; column < keys.length; column++) {
      item[keys[column]] = rowData[column]; // **null values used to name attributes???**
    }
    db.save(item);
  }
}

So the Javascrit noob should have used data.splice(0, 9) rather than data = data.splice(0, 9). I wanted to remove the first nine rows from the array, not retain them.

Anyway, it seems as it stands the database is not repairable or erasable. I can’t retrieve any records; any time I try to invoke .next() or .hasNext() I get a server error thrown, for example with this script from here:

function deleteAll() {
  var db = ScriptDb.getMyDb();
  while (true) {
    var result = db.query({}); // get everything, up to limit
    if (result.getSize() == 0) {
      break;
    }
    while (result.hasNext()) {
      db.remove(result.next());
    }
  }
}

.getSize() does work, but the script returns a server error when it gets to the line with .hasNext(), presumably because of the faulty object. I also tried a batch remove:

function batchRemove() {
  var db = ScriptDb.getMyDb();
  var result = db.query({});
  db.removeBatch(result, false); 
}

And I get:

Cannot find method removeBatch($Proxy799,boolean). (line 114)

By the way, I can successfully save a new record to the database, and retrieve that record with a query, but if the query returns anything else in the database that was created with the flawed script, that’s when I get the failure when I try to work with the resulting objects.

So I understand my error and promise to take more care in the future, but does anyone know how I can “clean out” my database to start again?

Answer 1

OK false alarm I guess, I tried again and I’m able to clear the database now.