Event aupdate_before

Description

This event is called after all the other AUPDATE_CONTROL_* events and just before the update. The update will then be done in the database by using the SetInstance instruction, followed by a RewriteByKey instruction. The update can still be refused if an error is set in this event.

Context

The following variables or properties are available in the context:

• this refers to the current class. All properties can be found using the this.PROPERTY syntax.
• CURPTH describes the child class path if the method is called on a child class. If the method is called on the main class, CURPTH is empty.
• this.snapshot refers to the initial values for the current class. All properties can be found using the this.snapshot.PROPERTY syntax.
• AEVENT is equal to AUPDATE_BEFORE.