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The WithData trait enables support for the getData() method on Models, Requests, or any class that can be magically converted to a data object.

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Using with Models

Add the trait and specify the data class: 
class Song extends Model
{
    use WithData;
    
    protected $dataClass = SongData::class;
}
Quickly get the data object: 
Song::firstOrFail($id)->getData(); // A SongData object

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Using with Form Requests

For FormRequests, use a method instead of a property: 
class SongRequest extends FormRequest
{
    use WithData;
    
    protected function dataClass(): string
    {
        return SongData::class;
    }
}
Use in a controller: 
class SongController
{
    public function __invoke(SongRequest $request): SongData
    {
        $data = $request->getData();
    
        $song = Song::create($data->toArray());
        
        return $data;
    }
}

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Benefits

Clean Controllers

Reduce boilerplate by calling getData() instead of SongData::from($model)

Type Safety

The data class is defined once and reused consistently

Discoverability

IDEs can autocomplete the data class from the model/request

Validation

Form requests automatically validate before creating the data object

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Complete Example

// Model
class Song extends Model
{
    use WithData;
    
    protected $dataClass = SongData::class;
}

// Request
class StoreSongRequest extends FormRequest
{
    use WithData;
    
    protected function dataClass(): string
    {
        return SongData::class;
    }
    
    public function rules(): array
    {
        return [
            'title' => 'required|string',
            'artist' => 'required|string',
        ];
    }
}

// Controller
class SongController extends Controller
{
    public function store(StoreSongRequest $request)
    {
        $data = $request->getData();
        
        $song = Song::create($data->toArray());
        
        return $song->getData();
    }
    
    public function show(int $id)
    {
        return Song::findOrFail($id)->getData();
    }
}
The getData() method respects all the same creation rules as calling SongData::from() directly, including magic methods and validation.