Código:
foreach($users as &$user) { $aro = $this->Acl->Aro->find('first', array('conditions' => array('model' => $user_model_name, 'foreign_key' => $user[$user_model_name][$this->_get_user_primary_key_name()]))); if($aro !== false) { $user['Aro'] = $aro['Aro']; } else { $missing_aro = true; } }