| Аргумент | Возможный тип | Описание |
| $product_id | int |
— |
// вызов из контроллера
$this->load->model('catalog/product');
$this->model_catalog_product->updateViewed(10);
$this->db->query("UPDATE " . DB_PREFIX . "product SET viewed = (viewed + 1) WHERE product_id = '" . (int)$product_id . "'");