public function hookDisplayShoppingCartFooter($params) $output = parent::hookDisplayShoppingCartFooter($params); if ($this->context->cart->getOrderTotal() > 100) $output .= '<p class="alert alert-success">You qualify for free shipping!</p>'; return $output;
/** * Add a completely new method (available to the module) */ public function myCustomMethod()
1. What is a Module Override? A module override allows you to modify the behavior of a native or third-party module without editing its original files . This is a clean, upgrade-safe method to customize module functionality. Important: Overrides work only for module classes and controllers , not for templates (templates must be copied to your theme). 2. Types of Module Overrides | Type | Location | Purpose | |------|----------|---------| | Class override | /override/modules/module_name/ | Modify PHP logic (models, helpers, etc.) | | Controller override | /override/modules/module_name/controllers/admin/ | Modify controller actions | | Template override | /themes/your_theme/modules/module_name/ | Modify .tpl files (no PHP override needed) | 3. Step-by-Step: Override a Module Class Let's say we want to override the MyModule class of a module named mymodule . Step 1: Create the override directory structure mkdir -p override/modules/mymodule Step 2: Create the override class file Create /override/modules/mymodule/MyModule.php with this content: override module prestashop
// Add your own code here $this->context->controller->addCSS($this->_path . 'views/css/custom.css'); return $originalResult;
/override/modules/mymodule/controllers/front/DefaultController.php This is a clean, upgrade-safe method to customize
public function initContent()
<?php // override/modules/mymodule/MyModule.php class MyModuleOverride extends MyModule Types of Module Overrides | Type | Location
return 'Custom functionality added via override';