[LRUG] Binding the creation of 2+ objects together

[Anthony Green]

Has anyone encountered a situation in which the business rules state that a
object can't be saved unless its twin is saved too ?

I'm seeing this is pattern repeated where an object with a has_one
relationship to a twin is created but you need to check its twin has created
as well and that both will save. You can't create one entry in a table
without a corresponding entry in a different table.

Does anyone know of an extension to the association declaration that
enforces these kind of rules. A source of creation version of :dependent =>
:destroy

Tony