Fixed: Transform member to json

src/Data/Member.php

@@ -5,11 +5,13 @@ namespace Zoomyboy\LaravelNami\Data;
 use Carbon\Carbon;
 use Spatie\LaravelData\Attributes\MapInputName;
 use Spatie\LaravelData\Attributes\WithCast;
+use Spatie\LaravelData\Attributes\WithTransformer;
 use Spatie\LaravelData\Data;
 use Zoomyboy\LaravelNami\Casters\CarbonCast;
 use Zoomyboy\LaravelNami\Casters\NullValueCast;
 use Zoomyboy\LaravelNami\Casters\StringCast;
 use Zoomyboy\LaravelNami\Tests\Factories\MemberRequestFactory;
+use Zoomyboy\LaravelNami\Transformers\CarbonTransformer;
 
 class Member extends Data
 {
@@ -31,10 +33,12 @@ class Member extends Data
 
         #[MapInputName('eintrittsdatum')]
         #[WithCast(CarbonCast::class, format: 'Y-m-d H:i:s')]
+        #[WithTransformer(CarbonTransformer::class, format: 'Y-m-d H:i:s')]
         public Carbon $joinedAt,
 
         #[MapInputName('geburtsDatum')]
         #[WithCast(CarbonCast::class, format: 'Y-m-d H:i:s')]
+        #[WithTransformer(CarbonTransformer::class, format: 'Y-m-d H:i:s')]
         public Carbon $birthday,
 
         public string $email,
@@ -51,6 +55,7 @@ class Member extends Data
 
         #[MapInputName('lastUpdated')]
         #[WithCast(CarbonCast::class, format: 'Y-m-d H:i:s')]
+        #[WithTransformer(CarbonTransformer::class, format: 'Y-m-d H:i:s')]
         public ?Carbon $updatedAt,
 
         #[MapInputName('nameZusatz')]

src/Transformers/CarbonTransformer.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Zoomyboy\LaravelNami\Transformers;
+
+use Spatie\LaravelData\Support\DataProperty;
+use Spatie\LaravelData\Transformers\Transformer;
+
+class CarbonTransformer implements Transformer
+{
+    public function __construct(
+        protected array|string|null $format = null
+    ) {
+    }
+
+    public function transform(DataProperty $property, mixed $value): mixed
+    {
+        if (is_null($value)) {
+            return null;
+        }
+
+        return $value->format($this->format);
+    }
+}

tests/Unit/MemberFactoryTest.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Zoomyboy\LaravelNami\Tests\Unit;
+
+use Carbon\Carbon;
+use ReflectionClass;
+use Zoomyboy\LaravelNami\Data\Member;
+use Zoomyboy\LaravelNami\Tests\TestCase;
+
+class MemberFactoryTest extends TestCase
+{
+    public function testItCanRenderMemberAsJson(): void
+    {
+        $member = Member::factory()->toMember();
+
+        $json = $member->toArray();
+        $data = json_decode(json_encode($json));
+
+        $newMember = Member::from($data);
+
+        foreach ((new ReflectionClass(Member::class))->getMethod('__construct')->getParameters() as $parameter) {
+            $name = $parameter->getName();
+
+            if (!is_object($member->{$name})) {
+                $this->assertSame($newMember->{$name}, $member->{$name});
+            }
+
+            if (is_a($member->{$name}, Carbon::class)) {
+                $this->assertSame($member->{$name}->toDateTimeString(), $newMember->{$name}->toDateTimeString());
+            }
+        }
+    }
+}