php code to upload multiple images cakephp - cakephp

Question

i am new in cakephp and try to learn.
my table structure is
table name - drivers
fields - id,name,
table - drivers_uploads
fields - id,driver_id,documentname,documentpath
i try to upload multiple files in my table.
My code is working well in folder it uploads multiple images but in table i want to insert all rows
i want to insert multiple file for same id and the id goes in drivers tables and the remaining files insert multiple rows for same id in drivers_upload table.
thanks in advance.
for ex
I need data to be inserted in below tables format.
**drivers tables **
id , name
16 lucky
driver_uploads tables
id,driver_id, document_name
1 16 mo.docx
2 16 ro.docx
controller code
public function add() {
$this->Driver->create();
if ($this->request->is('post')) {
for($i=1;$i<4;$i++)
{
if(empty($this->data['Driver']['document'.$i]['name'])){
unset($this->request->data['Driver']['document'.$i]);
}
if(!empty($this->data['Driver']['document'.$i]['name']))
{
$file=$this->data['Driver']['document'.$i];
$ary_ext=array('jpg','jpeg','gif','png','xlsx','docx'); //array of allowed extensions
$ext = substr(strtolower(strrchr($file['name'], '.')), 1); //get the extension
if(in_array($ext, $ary_ext))
{
move_uploaded_file($file['tmp_name'], APP . 'outsidefiles' .DS. time().$file['name']);
//move_uploaded_file($file['tmp_name'], WWW_ROOT . 'img/uploads/posts/' . mktime().$file['name']);
$this->request->data['Driver']['document'.$i] = time().$file['name'];
}
}
}
if ($this->Driver->save($this->request->data))
{
$this->Session->setFlash('Your post has been saved.');
$this->redirect(array('action' => 'index'));
}
else
{
$this->Session->setFlash('Unable to add your post.');
}
}
}
view code
<h1>Add Post</h1><?php
echo $this->Form->create('Post', array('url' => array('action' => 'add'), 'enctype' => 'multipart/form-data'));
echo $this->Form->input('title');
echo $this->Form->input('body', array('rows' => '3'));
for($i=1; $i<4; $i++)
{
?>
<div id="attachment<?php echo $i;?>" <?php if($i !=1) echo "style='display:none;'";?> >
<div>
<?php echo $this->Form->input('image'.$i,array('type'=>'file','label' => false,'div' => false));?>
</div>
<div id="attachmentlink<?php echo $i;?>" <?php if($i==3) echo "style='display:none;'";?>>Add Another Attachment</div>
</div>
<?php } ?>
<?php
echo $this->Form->end('Save Post');
?>
<script>
function show(target){
document.getElementById(target).style.display = 'block';
}
function hide(target){
document.getElementById(target).style.display = 'none';
}
</script>
Below is my print_r data
echo "<pre>";print_r($this->request->data); exit();
if ($this->Driver->save($this->request->data))
Array
(
[Driver] => Array
(
[name] => raj
[mobile] => 9960181380
[email] => raj#gmail.com
[licenceno] => 512203615803
[address] => 452,nagpur
[document1] => Array
(
[name] => findmelogistics_Phase_III_Project Plan v1.2_8.xls
[type] => application/vnd.ms-excel
[tmp_name] => /tmp/phpXGkLvj
[error] => 0
[size] => 29184
)
[document2] => 1461815092FML Phase 3 Specification 2.docx
[document3] => 1461815092Phase 3 - SmartData questions 310316.docx
)
)