Friday, August 8, 2014

Created By and Last Modified By not set before insert or update

After some frustrating troubleshooting of what I thought would be simple code today, I learned something unexpected: Created By and Last Modified By are not populated or set in the before context of DML operations. This means that before insert, CreatedById, CreatedDate, LastModifiedById and LastModifiedDate are all empty. And before update, LastModifiedById and LastModifiedDate will reflect the previous person to modify the record, not the current user (which would be yourself if you are the one editing the record).

While this was counter-intuitive at first, I came to realize that there's no need to rely on those fields in the context of Apex triggers. All I really need is UserInfo.getUserId() and to get the time.

Just like that... I learned something new today.