UserEngine + User Profiles

[Cross Posted in Rails Engines]

I’m taking a new approach to how I view user data, I think in the end it
will be faster for the system anyways… What I’m doing is using
LoginEngine/UserEngine combo on my site for authorization, and I want
each user to have a profile that they edit and maintain. Each user
would have 1 profile.

My question is getting my profile and my user account to have a
relationship. I have in my Profile model:

class Profile < ActiveRecord::Base
has_one :user

In my user.rb - I’m editing the user_engines/app/,odel/user.rb directly
for now:

class User < ActiveRecord::Base
include LoginEngine::AuthenticatedUser
include UserEngine::AuthorizedUser

belongs_to :profile

In my profiles database I have a user_id field that is of type int(11).
What I was expecting to happen (and this is obviously me being a newbie)
is that when I enter in a new profile the user_id field would
automagically be filled in by the relationship. Can anyone give me a
hand getting this going?