jQuery UI sortable images - php

Question

Hi I ‘d like some help please, as my skills in jQuery are not so good. What I want to achieve is to change the order of the images like this example.
My database looks like this:
table: Gallery
img_id (pk)
image
caption
order
I have also created these 2 views:
index.php
<!-- will display the ajax result -->
<div id="orderResult"></div>
<hr/>
<input type="button" id="save" value="Save Order" class="btn btn-primary">
<script type="text/javascript">
$(function () {
$.post('<?php echo site_url('admin/galleries/order_ajax'); ?>', {}, function(data) {
$('#orderResult').html(data);
});
// save order
$('#save').click();
});
</script>
order_ajax.php
<?php if(count($images)>0): ?>
<div class="sortable-list">
<ol id="sortable">
<?php foreach($images as $image): ?>
<li <?php echo 'id="li_'.html_escape($image->img_id).'"'; ?>><?php echo img(array('src' => 'uploads/thumbs/'.html_escape($image->image)); ?></li>
<?php endforeach; ?>
</ol>
</div>
<?php endif; ?>
<script type="text/javascript">
$(function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
});
</script>
I have also created and the order_ajax controller
public function order_ajax(){
// save order from pages
var_dump($_POST);
// if (isset($_POST['sortable'])) {
// $this->gallery->save_order($_POST['sortable']);
// }
// fetch all images (fetch all data)
$this->data['images'] = $this->gallery->get();
// load the view
$this->load->view('admin/gallery/order_ajax', $this->data, false);
}
So what I basically want to do is to drag the images around in order to change their order, and when I click the save button pass the (new) data/order to the controller and to store them in the database. How can I make this work?

Answer 1

Well, the solution was more simple than I thought.
On the index.php view I've put this
<script type="text/javascript">
$(function () {
$.post("<?php echo site_url('admin/galleries/order_ajax'); ?>", {}, function(data) {
$('#orderResult').html(data);
});
// save order
$('#save').click(function(){
var new_order = $("#sortable").sortable( "toArray" );
$.post("<?php echo site_url('admin/galleries/order_ajax'); ?>", { order_array: new_order }, function(data) {
$('#orderResult').html(data);
});
});
});
</script>
and this is the controller function
public function order_ajax(){
// save order from pages
if (isset($_POST['order_array'])) {
$this->gallery_model->save_order($_POST['order_array']);
}
// fetch all images
$this->data['images'] = $this->gallery->get();
// load the view
$this->load->view('admin/gallery/order_ajax', $this->data, false);
}