Override Class - Prestashop

Locate original class – /classes/Product.php → method public static function getProductPrice(...) inside ProductCore .

The override class must extend the *Core version of the original class (e.g., ProductCore ). 4. How the Override System Works (Flow) graph TD A[Request calls e.g. 'new Cart()'] --> B[Autoloader looks for class Cart] B --> CExists in /override/classes/ ? C -->|Yes| D[Load /override/classes/Cart.php] C -->|No| E[Load /classes/Cart.php] D --> F[Class Cart extends CartCore] F --> G[Execute override methods] E --> H[Execute original CartCore methods] PrestaShop uses a custom Autoload class that scans /override/ at runtime (or caches the mapping). When a class is instantiated, the autoloader loads the override version if present. 5. Creating an Override (Example) Goal: Modify the getProductPrice method in Product class to apply a special discount for VIP customers. prestashop override class

public static function getProductPrice( $id_product, $quantity, $id_product_attribute = null, $id_customization = null, $id_cart = null, $only_reduc = false, $use_tax = true, $id_shop = null, $use_reduc = true, $with_eco_tax = false ) // Call original method first $price = parent::getProductPrice( $id_product, $quantity, $id_product_attribute, $id_customization, $id_cart, $only_reduc, $use_tax, $id_shop, $use_reduc, $with_eco_tax ); Locate original class – /classes/Product

return $price;

| Original Core Path | Override Path | Class Name (Override) | |-------------------|---------------|------------------------| | /classes/Cart.php | /override/classes/Cart.php | class Cart extends CartCore | | /controllers/front/OrderController.php | /override/controllers/front/OrderController.php | class OrderController extends OrderControllerCore | | /core/Foundation/IoC/Container.php | /override/core/Foundation/IoC/Container.php | class Container extends ContainerCore | How the Override System Works (Flow) graph TD

// Apply VIP discount (example logic) if (Context::getContext()->customer->isLogged() && Customer::getInstance()->isVip()) $price = $price * 0.90; // 10% off