feat: address Silverstripe 5.3 deprecations

- use Extension
- add PSR-4 autoload config

Author: Cambis

README.md

@@ -7,7 +7,7 @@ This module was inspired by the following modules, but modified for our tastes:
 -  [guttmann/silverstripe-menumanager-subsites](https://github.com/guttmann/silverstripe-menumanager-subsites)
 
 ## Requirements
-This module is baked for Silverstripe 4 and Php 8
+This module is baked for Silverstripe 5 and Php 8
 
 ## Installation
 `composer require dnadesign/silverstripe-setmenu`

composer.json

@@ -6,8 +6,13 @@
     "require": {
         "php": "^8",
         "silverstripe/cms": "^5",
-		"symbiote/silverstripe-gridfieldextensions": "^4"
+        "symbiote/silverstripe-gridfieldextensions": "^4"
     },
-	"minimum-stability": "dev",
-	"prefer-stable": true
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+    "autoload": {
+        "psr-4": {
+            "DNADesign\\SetMenu\\": "src"
+        }
+    }
 }

src/Extensions/MenuSubsiteExtension.php

@@ -2,22 +2,24 @@
 
 namespace DNADesign\SetMenu\Extensions;
 
+use SilverStripe\Core\Extension;
 use SilverStripe\Forms\FieldList;
 use SilverStripe\Forms\HiddenField;
-use SilverStripe\ORM\DataExtension;
 use SilverStripe\Subsites\Model\Subsite;
 use SilverStripe\Subsites\State\SubsiteState;
 
 /**
  * Add the Subsite relation, and include the ID on the record
+ *
+ * @extends Extension<(Subsite & static)>
  */
-class MenuSubsiteExtension extends DataExtension
+class MenuSubsiteExtension extends Extension
 {
     private static $has_one = [
         'Subsite' => Subsite::class
     ];
 
-    public function updateCMSFields(FieldList $fields)
+    protected function updateCMSFields(FieldList $fields): void
     {
         $fields->push(HiddenField::create('SubsiteID', 'SubsiteID', SubsiteState::singleton()->getSubsiteId()));
     }