Cart Class - Add another product

[eluser]alan-tucker[/eluser]
Hi

When adding a product to the basket which has already been previously added how can I update the QTY? One issue is production option combinations where they have the same id/sku coder but may have different options of like a colour or/and size etc.

Code:

$data = array(
                             'id'      => $this->input->post('id'),
                             'qty'     => $this->input->post('qty'),
                             'price'   => $this->input->post('price'),
                             'name'    => $this->input->post('name')
                        );
    $this->cart->insert($data);                
    redirect($this->config->item('base_url')."basket/");

Thanks