Assign foreign key value when creating a row #791

Hi.

I have a Session table and a User table. The Session table has a foreign referencing the primary key (id) of the User. Now I want to create a new Session for a user:

db.Session.create({
token: hash,
user: user.id,
created: new Date()}, cb);

But the user column doesn't get set in the resulting SQL statement. Why?