Answer by Reto Weiss

Reto Weiss — Fri, 09 Jun 2017 08:34:39 -0400

of all you have to set the system property org.apache.el.parser.COERCE_TO_ZERO to false as described by you about. This can be done in the AxonIvyDesigner.ini of the AxonIvyEngine.ilc file on Windows. This turns of that JSF replaces null values through 0.
IvyScript tries to auto initialize most of the values. This means that if a number is null IvyScript will turn it into a 0. Even though you can test if a 0 is set manually or was auto initialized. This can be done with the operator is initialized.

Example:

ivy.log.info("Was initialized manually:"+(in.num is initialized) +" Value "+in.num);

With that you can decide if the field was empty (value is 0 but not initialized) or if the user has entered a 0 (value is 0 and initialized).

Regards

Reto Weiss, ivyTeam Support

Answers to: Number as null