[turba] Adding additional backend fields to each Turba contact

[Alex Ng]

Dear all

I am trying to add an additional backend field to each Turba contact.

I have added an additional field to the turba_objects table of the horde
database already called "added_by_user" to record the current authenticated
user who adds the contact.

This would not be a field in the New Contact form, but would be strictly a
backend field that would get the current authenticated user from
Auth::getAuth(); and insert it into my newly created field "added_by_user".

Where would I specify this?  Any ideas?

Thanks,
-Alex