Laravel DTO

Laravel integration for php-collective/dto.

Installation

composer require php-collective/laravel-dto

The service provider will be auto-discovered.

Configuration

Publish the config file:

php artisan vendor:publish --provider="PhpCollective\LaravelDto\DtoServiceProvider"

This creates config/dto.php with the following options:

return [
    'config_path' => config_path(),     // Where DTO config files are located
    'output_path' => app_path('Dto'),   // Where to generate DTOs
    'namespace' => 'App\\Dto',          // Namespace for generated DTOs
    'typescript_output_path' => resource_path('js/types'), // TypeScript output
    'jsonschema_output_path' => resource_path('schemas'),  // JSON Schema output
];

Usage

1. Initialize DTO configuration

php artisan dto:init

This creates a config/dto.php file with a sample DTO definition (PHP format is the default). You can also use --format=xml or --format=yaml.

The generated config looks like:

use PhpCollective\Dto\Builder\Dto;
use PhpCollective\Dto\Builder\Field;
use PhpCollective\Dto\Builder\Schema;

return Schema::create()
    ->dto(Dto::create('User')->fields(
        Field::int('id'),
        Field::string('name'),
        Field::string('email')->nullable(),
    ))
    ->toArray();

2. Generate DTOs

php artisan dto:generate

Options:

• --dry-run - Preview changes without writing files
• -v - Verbose output

3. Generate TypeScript interfaces

php artisan dto:typescript
php artisan dto:typescript --multiple-files --readonly

4. Generate JSON Schema

php artisan dto:jsonschema
php artisan dto:jsonschema --multiple-files

5. Use your DTOs

use App\Dto\UserDto;

$user = new UserDto([
    'id' => 1,
    'name' => 'John Doe',
    'email' => 'john@example.com',
]);

return response()->json($user->toArray());

Eloquent Integration

Attribute Casting

use App\Dto\ProfileDto;
use App\Dto\TagDto;
use PhpCollective\LaravelDto\Eloquent\DtoCast;
use PhpCollective\LaravelDto\Eloquent\DtoCollectionCast;
use PhpCollective\LaravelDto\Eloquent\HasDtoCasts;

class User extends Model
{
    protected $casts = [
        'profile' => DtoCast::class . ':' . ProfileDto::class,
        'tags' => DtoCollectionCast::class . ':' . TagDto::class,
    ];
}

$user = User::firstOrFail();
$profile = $user->profile;       // ProfileDto instance
$tags = $user->tags;             // Collection<TagDto>|null

Or opt into automatic casts:

class User extends Model
{
    use HasDtoCasts;

    protected array $dtoCasts = [
        'profile' => ProfileDto::class,
        'tags' => [
            'class' => TagDto::class,
            'collection' => true,
        ],
    ];
}

Model to DTO

use App\Dto\UserDto;
use PhpCollective\LaravelDto\Eloquent\CreatesDtoFromModel;

class User extends Model
{
    use CreatesDtoFromModel;

    protected function getDtoClass(): ?string
    {
        return UserDto::class;
    }
}

$dto = $user->toDto();

You can also extend the base model:

use PhpCollective\LaravelDto\Eloquent\DtoModel;

class User extends DtoModel
{
    protected function getDtoClass(): ?string
    {
        return UserDto::class;
    }
}

Mapping Helpers

use App\Dto\UserDto;
use PhpCollective\LaravelDto\Eloquent\DtoMapper;

$user = User::with('posts')->firstOrFail();
$dto = DtoMapper::fromModel($user, UserDto::class, relations: ['posts']);

$dtos = DtoMapper::fromCollection(User::query()->get(), UserDto::class);
$paginator = DtoMapper::fromPaginator(User::query()->paginate(), UserDto::class);

API Resources

use PhpCollective\LaravelDto\Http\DtoResource;

return new DtoResource($dto);
// or
return DtoResource::collection($dtos);

Request Integration

DtoFormRequest

use PhpCollective\LaravelDto\Http\DtoFormRequest;

class StoreUserRequest extends DtoFormRequest
{
    protected string $dtoClass = UserDto::class;

    public function rules(): array
    {
        return [
            'name' => 'required|string|max:255',
            'email' => 'required|email|unique:users',
        ];
    }
}

// In controller:
public function store(StoreUserRequest $request): JsonResponse
{
    $dto = $request->toDto();
    // ...
}

DtoResolver

Register once (e.g. in AppServiceProvider::boot()):

use PhpCollective\LaravelDto\Http\DtoResolver;

DtoResolver::register();

Then inject DTOs directly:

public function store(UserDto $dto): JsonResponse
{
    // $dto is built from request data
}

Collections

The service provider automatically registers Laravel's Illuminate\Support\Collection for DTO collection fields. Define collection fields with the [] suffix:

Field::array('roles', 'Role'),  // Role[] collection
Field::array('tags', 'string'), // string[] collection

After generating, collection fields use Laravel's Collection class with all its methods (filter, map, pluck, etc.).

Validation Bridge

Convert DTO validation rules to Laravel validation arrays with DtoValidationRules::fromDto(). Integrates directly with Form Requests. See Usage Guide for details.

Supported Config Formats

The package supports multiple config file formats:

• dto.php - PHP format (default)
• dto.xml - XML format
• dto.yml / dto.yaml - YAML format
• dto/ subdirectory with multiple files

License

MIT