Note Table - Update Script

update.js

function update(item, user, request) {

    var table = tables.getTable('notes');
    table.where({ 
       id: item.id, userId : user.userId
    }).read({
       success: upsertItem
    });
 
    function upsertItem(items) {
        item.userId = user.userId;
        if (items.length > 0) {
            request.execute();
        } else {
          table.insert(item, {
            success: function(e) {
                request.respond(statusCodes.OK, e)
            }
          });
        }
     }
}