build(traits): support non backed enum and support php 8.1

Author: Stiven Katuuk

composer.json

@@ -31,7 +31,7 @@
     ],
     "homepage": "https://github.com/spatie/activitylog",
     "require": {
-        "php": "^8.0",
+        "php": "^8.0|^8.1",
         "illuminate/config": "^8.0 || ^9.0",
         "illuminate/database": "^8.53 || ^9.0",
         "illuminate/support": "^8.0 || ^9.0",

src/Traits/LogsActivity.php

@@ -17,6 +17,7 @@
 use Spatie\Activitylog\Contracts\LoggablePipe;
 use Spatie\Activitylog\EventLogBag;
 use Spatie\Activitylog\LogOptions;
+use UnitEnum;
 
 trait LogsActivity
 {
@@ -366,6 +367,10 @@ public static function logChanges(Model $model): array
             if ($model->hasCast($attribute)) {
                 $cast = $model->getCasts()[$attribute];
 
+                if(function_exists('enum_exists') && enum_exists($cast)) {
+                    $changes[$attribute] = $model->getStorableEnumValue($changes[$attribute]);
+                }
+
                 if ($model->isCustomDateTimeCast($cast) || $model->isImmutableCustomDateTimeCast($cast)) {
                     $changes[$attribute] = $model->asDateTime($changes[$attribute])->format(explode(':', $cast, 2)[1]);
                 }

tests/AbleStoreNonBackedEnumTest.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Spatie\Activitylog\Test;
+
+use Spatie\Activitylog\Test\Enum\NonBackedEnum;
+use Spatie\Activitylog\Test\Models\Activity;
+
+it('can store non backed enum', function () {
+    $description = 'ROLE LOG';
+
+    activity()->withProperty('role', NonBackedEnum::User)->log($description);
+
+    expect(Activity::query()->latest()->first()->description)->toEqual($description);
+});

tests/Enum/NonBackedEnum.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Spatie\Activitylog\Test\Enum;
+
+enum NonBackedEnum
+{
+    case Admin;
+
+    case User;
+}