khosb/modules/cart/classes/Controller/Cart.php

<?php defined('SYSPATH') or die('No direct access allowed.');

/**
 * This class provides a order cart
 *
 * @package    Cart
 * @category   Controllers
 * @author     Deon George
 * @copyright  (c) 2009-2013 Open Source Billing
 * @license    http://dev.osbill.net/license.html
 */
class Controller_Cart extends Controller_TemplateDefault {
	protected $auth_required = FALSE;

	/**
	 * List the cart contents
	 */
	public function action_index() {
		$co = Cart::instance();

		// If the cart is empty, we'll return here.
		if (! $co->contents()->count())
			$this->template->content = _('Cart is Empty');

		else {
			$output = View::factory('cart/view')->set('o',$co);

			$output .= Form::open('checkout/before');
			$output .= View::factory('cart/payment')->set('o',$co);
			$output .= Form::close();

			Block::factory()
				->body($output);
		}
	}

	/**
	 * Add an item to the cart
	 */
	public function action_add() {
		$co = ORM::factory('Cart');

		$co->values(Request::current()->post());
		$co->session_id = Session::instance()->id();

		if (! $this->save($co))
			throw HTTP_Exception::factory(501,_('There was a problem adding the item to the cart.'));

		HTTP::redirect('cart/index');
	}

	public function action_empty() {
		Cart::instance()->delete();

		$this->template->content = _('Cart Emptied');
	}
}
?>