Podes usar JOINS:
Código PHP:
Ver original$options['joins'] = array(
'table' => 'users_users',
'alias' => 'friends',
'type' => 'INNER',
'friends.user_id = User.id',
)
);
$options['conditions'] = array( 'User.id' => $id
);
$this->User->UsersWordsModel->bindModel(array('belongsTo'=>array('User', 'friends')));
$user_relations = $this->User->find('first', $options);
$this->set('data', $user_relations);