khosb/modules/cart/classes/Cart.php

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

/**
 * This class provides a order cart
 *
 * @package    Cart
 * @category   Helpers
 * @author     Deon George
 * @copyright  (c) 2009-2013 Open Source Billing
 * @license    http://dev.osbill.net/license.html
 */
class Cart {
	private $id = NULL;

	public function __construct($id=NULL) {
		$this->id = is_null($id) ? Session::instance()->id() : $id;
	}

	public static function instance($id=NULL) {
		return new Cart($id);
	}

	/**
	 * Return a list of items in the cart
	 */
	public function contents() {
		return ORM::factory('Cart')
			->where('session_id','=',$this->id)
			->find_all();
	}

	public function delete() {
		foreach (ORM::factory('Cart')->where('session_id','=',$this->id)->find_all() as $co)
			$co->delete();
	}

	public function get($mid,$item) {
		return ORM::factory('Cart')
			->where('session_id','=',$this->id)
			->and_where('module_id','=',$mid)
			->and_where('module_item','=',$item)
			->find_all();
	}

	public function id() {
		return $this->id;
	}

	public function total($format=FALSE) {
		$total = 0;

		foreach ($this->contents() as $cio)
			$total += $cio->item()->t;

		return $format ? Currency::display($total) : $total;
	}

	/**
	 * Print an HTML cart list
	 *
	 * @param bool $detail List a detailed cart or a summary cart
	 */
	public function cart_block() {
		// @todo To implement.
		return '';
		// If the cart is empty, we'll return here.
		if (! count($this->contents()))
			return 'The cart is empty.';

		Style::add(array(
			'type'=>'file',
			'data'=>'css/cart_blocklist.css',
			));

		$output = '<table class="cart_blocklist" border="0">';
		foreach ($this->contents() as $item) {
			$ppa = $item->product->get_price_array();
			$pdata = Period::details($item->recurr_schedule,$item->product->price_recurr_weekday,time(),TRUE);

			$output .= View::factory('cart/block_list')
				->set('item',$item)
				->set('price_setup',$item->quantity*$ppa[$item->recurr_schedule]['price_setup'])
				->set('price_firstinvoice',$item->quantity*$ppa[$item->recurr_schedule]['price_base']*$pdata['prorata']);
		}

		$output .= '<tr class="submit">';
		$output .= sprintf('<td colspan="3">%s&nbsp;%s</td>',
			Form::button('checkout','Checkout',array('type' => 'submit')),
			Form::button('empty','Empty',array('type' => 'submit')));
		$output .= '</tr>';
		$output .= '</table>';

		return $output;
	}
}
?>