Datamapper relationship problems

[eluser]Iverson[/eluser]
I have three models with the following relationships:

Code:

//Poll.php
var $has_many = array('poll_answer');

//Poll_answer.php
var $has_many = array('poll_vote');

//Poll_vote.php
var $has_one = array('poll_answer');

When I save a vote, the relationships get added fine. However this doesn't return anything at all:

Code:

$p->get_by_id($id);
$p->poll_answer->get();
$p->poll_answer->poll_vote->get();

No clue...