Validation Problem

[plinto]

Hello, I am making a table that is a form where every item added has a
checkbox and the form has 2 submit buttons, 1 is to edit e 1 to
delete.
_________________________________
__|______________________________
   | Italy
X | Us
X | Canada
__________________________________
| Edit | Delete |

The problem I am having is, since you can edit more than 1 item, I
don't know how to correctly validate them on the process view.
Here is the code to what I have done.

function process() {
                if ( !empty($this->params['form']['del']) ){
                $this->delete();
        } else if ( !empty($this->params['form']['edit']) ){
                                $this->edit();
        } else if ( !empty($this->params['form']['save']) ){
                                $this->save();
        }
}


function save() {
                if(!empty($this->data)) {
                        foreach($this->data as $country):
                                if ($this->Country->save($country)) {}
                        endforeach;
                        $this->redirect('/countries');
                $this->Session->setFlash('<span>Saved</
span>','default',null,'error');
                }
        }


 function edit()
    {
        if (!empty($this->data))
        {
                $i =0;
                foreach($this->data['Country'] as $id=>$value):
                                if ($value == 1) {
                                        $this->Country->id = $id;
                                        $this->data['Country'.$i] = 
$this->Country->read();
                                        $i++;
                                }
                        endforeach;
                        if ($i == 0) {
                                $this->Session->setFlash('<span>Nothing 
Selected</
span>','default',null,'error');
                                $this->redirect('/countries');
                        }
                        $this->set('countries', $i);
        }
    }



process.ctp

<?php echo $form->create(array('url'=>'/countries/process')); ?>
<?php for($i =0; $i<$countries; $i++) { ?>
                <?php echo $form->hidden('Country'.$i.'.Country.id'); ?>
        <?php echo $form->input('Country'.$i.'.Country.name')?>
<?php } ?>
        <?php echo $form->submit('Save', array('name'=>'save')) ?>

<?php echo $form->end(); ?>

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