multiple checkboxes with cakephp 1.2 - cakephp

Question

I have a page with a list of books, and every row has a checkbox. (I'm using cakephp 1.2).
I want to let the user to save multiple books.
For now I have this checkbox in my view (in a cycle, where I get the list of all books):
<?php echo $form->input('salva', array('value' => $cdBiblio['CdBiblio']['codiceBiblio'], 'label' => '', 'type' => 'checkbox')); ?>
This form:<?php echo $form->create('cd_biblios', array('action' => 'save')); ?>
And this button:
<?php echo $form->end('Add All');?>
In the controller, I have something like this for debugging:
debug($this->data);
foreach($this->data['cd_biblios']['salva'] as $item) {
debug($item);
}
But it's not working.
I noticed that it takes only the last book id of the list with debug($this->data); and if I check more than 1 book, it show 0 or the last book id, for example:
Array (
[cd_biblios] => Array
(
[salva] => 0
) )
SOLVED:
In the view I use Danial's code.
In the controller I use this code:
if(!empty($this->data)) {
$item=$this->data;
debug($item);
$dim=count($item['Model']['field']);
$i=0;
for ($i=0;$i<$dim;$i++)
if ($item['Model']['field'][$i]!=0)
{
$data = $this->Session->read('libri');
$data[] = $item['Model']['field'][$i];
$this->Session->write('libri', $data);
}
$this->Session->setFlash(__('I libri sono stati salvati', true));
$this->redirect($this->referer());
}

Answer 1

In View:
<?php
foreach($array as $each_elem) {
echo $form->checkbox(
'Model.field',
array(
'id'=>'abcd_'.$each_elem['Model']['id'],
'value' => $each_elem['Model']['id'],
'hiddenField' => false,
'name' => 'data[Model][field][]',
'label' => false,
'div' => false,
));
}
?>
On submit the form, you will get the checked values in controller in $this->request->data

Answer 2

You have a conception problem.
Your checkboxes must be inside a form, because they are input tags. So, to send those values to the controller you'll need to submit that form. In your code, i see that "Add All" is just a link. And a link won't submit the form.
Change your link to a button :)
Hope this helps