gistfile1.php

Hi. Trying to validate a model inside the controller. 
Thing is, I am trying to submit a few at once.
I've made the forms fields like so:
 
ShareMail.0.name,
ShareMail.0.email,
ShareMail.1.name,
ShareMail.1.email,

but am having trouble validating them in the controller.
Trying to follow directions on 
http://book.cakephp.org/view/410/Validating-Data-from-the-Controller

Cake 1.2
Tried using  $this->Model->validates() as well as saveAll with validate=>only, but neither works.

<?php
// From my controller
   function _share_postcard() {
        if(!empty($this->data)) {
            $this->ShareMail = ClassRegistry::init('ShareMail');
            $this->ShareMail->set($this->data);
            if($this->ShareMail->saveAll($this->data, array('validate'=>'only'))) {

                $this->setFlashSuccess(__('external_postcard_thankyou', true));

            }
        }
    }
?>
<?php
/**
* ShareMail Class. For sending email using the share/postcard form.
*/
class ShareMail extends AppModel {

	public $useTable = false;

    public $validate = array(
        'name' => array('notempty'),
        'email' => array(
            'existence' => array(
                'rule' => 'email',
                'allowEmpty' => false
            ),
        )
    );

    var $_schema = array(
        
        'name' => array('type'=>'string', 'length'=>255),
        'email' => array('type'=>'string', 'length'=>255),  
    );
}