CartItemStruct example

        // Refresh basket prices         $basketData = $this->db->fetchAll(
            'SELECT id, modus, quantity FROM s_order_basket WHERE sessionID = ?',
            [$this->session->get('sessionId')]
        );
        $cartItems = [];
        foreach ($basketData as $basketContent) {
            if (empty($basketContent['modus'])) {
                $cartItem = new CartItemStruct();
                $cartItem->setId((int) $basketContent['id']);
                $cartItem->setQuantity((int) $basketContent['quantity']);
                $cartItems[] = $cartItem;
            }
        }
        $this->updateCartItems($cartItems);

        // Check, if we have some free products for the client         $this->sInsertPremium();

        // Delete previous given discounts