Need workaround for belongs_to :finder_sql

Hi

I am building an interface around my postfix config files. I have a bit
of a mix of primary keys with the “Mailboxes” table having a rails-esqe
Id field for each user. However, my “Aliases” table has just From/To
email addresses.

I would like to be able to add a couple of “belongs_to” attributes to
the Aliases model object which will give me a user object for both the
From or To email addresses. Any suggestions on how to do this (or even
if it’s worth bothering really… Just add finer methods…?)

Cheers

Ed W