Auto Increment

Data event for auto incrementing values.

IMPORTANT NOTE: It is important to note that this will only work if a single device is being used to collect data. The STORAGE() function only stores data locally on the device/browser being used at the time the function is being used. So if multiple devices/browser are being used this example will NOT work for your use case.

This example will store a value in the local storage on the device when a record is saved. The value stored comes from the field in the record. The next time a record is created on that device/browser the value in storage will be referenced and have 1 added to in and then placed in the field.

Auto Increment Example

var storage = STORAGE();

ON('new-record', function(event) {

  if(storage.getItem('key')){
    var count = storage.getItem('key');
    SETVALUE('field', NUM(count) + 1);
  }
  else {
    SETVALUE('field', 1);
  }

});

ON('save-record', function(event) {
   storage.setItem('key', $field);

});