function check_action()
{
global $FUNCS;
if (isset($_GET['kcart_action']) && $FUNCS->is_non_zero_natural($_GET['kcart_action'])) {
// Sanity check - actions should be executed only when invoked on the cart template
$cur_tpl = KWebpage::get_template_name();
if ($FUNCS->is_error($cur_tpl) || $cur_tpl != $this->config['tpl_cart']) {
return;
}
$action = (int) $_GET['kcart_action'];
if ($action == PP_ACTION_UPDATE_ITEMS && isset($_POST['checkout'])) {
// Account for 'checkout' button implemented as a submit button instead of a link
$action = PP_ACTION_CHECKOUT;
}
$this->current_action = $action;
switch ($action) {
case PP_ACTION_ADD_ITEM:
/* add item */
$this->add_item();
break;
case PP_ACTION_UPDATE_ITEMS:
/* update items */
$this->update_items();
break;
case PP_ACTION_REMOVE_ITEM:
/* remove item */
$this->remove_item();
break;
case PP_ACTION_EMPTY_CART:
/* empty cart */
$this->empty_cart();
break;
case PP_ACTION_CHECKOUT:
/* checkout */
$this->checkout();
break;
default:
$this->current_action = PP_ACTION_CUSTOM;
$this->custom_action();
/* some custom action probably implemented by subclass */
}
}
}
