/** * Convert a list (array) of 'OrderItem' objects into * list (array) of Cart Items. * * @param array of OrderItem $orderItemArray * @return array of Cart Items $cartContents */ private function convertOrderItemsToCartItems($orderItemArray = array()) { $cartContents = array(); foreach ($orderItemArray as $orderItem) { $cartContents[] = OrdersController::mapOrderItemToCartItem($orderItem); } return $cartContents; }