Creating 'Delete' button in VirtueMart 2+ Cart Module

[DATURA]

Hello!


I'm trying to modify VirtueMart cart module and add "delete" button to the list of items





But nothing can do with it, besause i'm just a PHP programmer 


Trying as shown there http://forum.virtuemart.net/index.php?topic=99141.0
but after activating "plg_system_vm2_cart_j25" stops working "add to cart" button,
and got
"http://xxxxxxxxxx.ru/index.php?option=com_virtuemart&nosef=1&view=cart&task=viewJS&format=json&_=1356442163804 500 (Internal Server Error)"
in java console.


May be somebody already do it? May be there is any way to write it?


Please help with it.. 


Joomla! 2.5.8,
VirtueMart 2.0.16

[DATURA]

May be use some AJAX/Java request which remove product from cart by product SKU?


For example write product list in cart module by code:

Code Select Expand

<div class="vm_cart_products">
<div class="container">
<?php foreach ($data->products as $product)
{
if ($show_price) { ?>
<div class="del_<?php echo  $product['product_sku'] ?>" style="float: right;">
<span class="del-button"><input type="submit" class="del-button" value="" /></span>
</div>
  <div class="prices" style="float: right;">
<?php echo  $product['prices'] ?></div>
<?php } ?>
<div class="product_row">
<span class="product_name"><?php echo  $product['product_name'] ?></span>&nbsp;&nbsp;&nbsp;<span class="quantity"><?php echo  $product['quantity'] ?></span>&nbsp;шт.
</div>

<div class="horizontal-separator"></div>
<?php 
}
?>
</div>
</div>


[DATURA]

From cart order page items removing by code

Code Select Expand

<a class="vmicon vm2-remove_from_cart"
title="<?php echo JText::_ ('COM_VIRTUEMART_CART_DELETE') ?>" align="middle"
href="<?php echo JRoute::_ ('index.php?option=com_virtuemart&view=cart&task=delete&cart_virtuemart_product_id=' . $prow->cart_item_id) ?>">
</a>


but how to convert product_sku to cart_virtuemart_product_id??? 

[DATURA]

OK, if we disable SEO in virtualmart and got link like

Code Select Expand

/magazin/view/productdetails/virtuemart_product_id/4/virtuemart_category_id/1.html

in $product[product_name], so...

Code Select Expand


<?php // Cut product id from product link "/magazin/view/cart/task/delete/cart_virtuemart_product_id/4.html"
$id_pos = stripos($product[product_name],'product_id/')+11;
$cat_pos = stripos($product[product_name],'/virtuemart_category_id');
$prod_id = substr ($product[product_name], $id_pos, $cat_pos - $id_pos);
?>


and we now may delete the product with

Code Select Expand


<a
class="vmicon vm2-remove_from_cart"
title="<?php echo JText::_ ('COM_VIRTUEMART_CART_DELETE') ?>"
align="middle"
href="<?php echo JRoute::_ ('index.php?option=com_virtuemart&view=cart&task=delete&cart_virtuemart_product_id=' .$prod_id) ?>">
</a>


BUT we got redirecting to "main cart"... with working cart module... brrrrrrrrrr