Include a reference to shopping_cart.php in admin.php:
// Load Business Tier
require_once BUSINESS_DIR . 'catalog.php';
require_once BUSINESS_DIR . 'shopping_cart.php';
5. Create a new presentation object file named presentation/admin_carts.php, and add the following
code to it:
// Class that supports cart admin functionality
class AdminCarts
{
// Public variables available in smarty template
public $mMessage;
public $mDaysOptions = array (0 => 'All shopping carts',
1 => 'One day old',
10 => 'Ten days old',
20 => 'Twenty days old',
30 => 'Thirty days old',
90 => 'Ninety days old');
public $mSelectedDaysNumber = 0;
public $mLinkToCartsAdmin;
// Private members
public $_mAction = '';
// Class constructor
public function __construct()
{
foreach ($_POST as $key => $value)
// If a submit button was clicked ...
if (substr($key, 0, 6) == 'submit')
{
// Get the scope of submit button
$this->_mAction = substr($key, strlen('submit_'), strlen($key));
// Get selected days number
if (isset ($_POST['days']))
$this->mSelectedDaysNumber = (int) $_POST['days'];
else
trigger_error('days value not set');
}
CHAPTER 12 ?– CREATING YOUR OWN SHOPPING CART 395
$this->mLinkToCartsAdmin = Link::ToCartsAdmin();
}
public function init()
{
// If counting shopping carts ...
if ($this->_mAction == 'count')
{
$count_old_carts =
ShoppingCart::CountOldShoppingCarts($this->mSelectedDaysNumber);
if ($count_old_carts == 0)
$count_old_carts = 'no';
$this->mMessage = 'There are ' .
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