Editing Extensions and Widgets Creation

'''Note: This manual is for osCommerce v4.'''

'''Basic Provisions:'''
# 1. All extensions must be placed in separate folder.
# 2. The class file name must be the same as the folder name.
# 3. Templates must be placed in folder 'views'.

//additional
if you want to use widgets in extensions
1. Add method getWidgets with $type parameter and describe widgets in array
example:
return [

            [

                'name' => 'CustomerLoyalty\ShoppingCart', 'title' => 'Customer Loyalty Info Box', 'description' => <nowiki>''</nowiki>, 'type' => 'cart',

            ],

        ];

in this case ShoppingCart (in subfolder \ShoppingCart) is widget ( ShoppingCart.php) can be used in customizing Themes
2. to show additional settings for widget use method showSettings
example:

    public static function showSettings($settings){

        return self::begin()->render('settings.tpl', ['settings' => $settings]);

    }

extension installer:
1) extends \common\classes\modules\ModuleExtensions
2) install (example)

    public function install($platform_id){

        parent::install($platform_id);// install in liek other modules

        // install extention envirenment

        $migration = new \common\classes\Migration;

        $migration->addTranslation(['admin/main'], [

            //add keys

        ]);

        return;

    }

2) check extension enabled - use \common\helpers\Acl::checkExtensionAllowed($extName, 'allowed')

    public static function allowed() {

        return self::enabled();

    }