README

Description

This package provides attribute-based controllers for use in Laminas applications. It simplifies route management, dependency injection, and input handling in controller arguments.

Installation

Requirements

• PHP >= 8.0
• Laminas MVC >= 3.0
• Composer

Instructions

1. Install the package:

   composer require a7-tech/laminas-attribute-controller
   

2. Set up the module in your Laminas application by adding it to the application.config.php:

   return [
       'modules' => [
           // other modules...
           LaminasAttributeController\Module::class,
       ],
   ];

Usage

Example Controller with Attributes

use LaminasAttributeController\AttributeActionController;
use LaminasAttributeController\Routing\Route;

#[Route('/user', name: 'user')]
final class UserController extends AttributeActionController
{
    #[Route('/list', name: 'user_list', methods: ['GET'])]
    public function listAction()
    {
        return ['users' => []];
    }

    #[Route('/add', name: 'user_add', methods: ['POST'])]
    public function addAction()
    {
        return ['status' => 'success'];
    }
}

Route Registration

Routes are automatically registered through attributes when the module is enabled.

Attributes Documentation

Route

The Route attribute defines routing for controller methods.

use LaminasAttributeController\Routing\Route;

#[Route('/api/users', name: 'users_route', methods: ['GET', 'POST'])]
public function usersAction()
{
    // Method implementation
}

Parameters:

• path (string): The URL path for the route
• name (string|null): Optional name for the route
• methods (array): HTTP methods allowed for this route, defaults to ['GET']

QueryParam

The QueryParam attribute extracts and validates query parameters from the request.

use LaminasAttributeController\Validation\QueryParam;
use Symfony\Component\Validator\Constraints as Assert;

public function searchAction(
    #[QueryParam('query', constraints: [new Assert\NotBlank(), new Assert\Length(min: 3)], required: true)] string $searchQuery
) {
    // Use $searchQuery which has been extracted from the request query parameters
    return ['results' => $this->searchService->search($searchQuery)];
}

Parameters:

• name (string): The name of the query parameter
• constraints (array): Array of Symfony validator constraints to apply
• required (bool): Whether the parameter is required, defaults to false

Autowire

The Autowire attribute enables automatic dependency injection.

use LaminasAttributeController\Injection\Autowire;
use App\Service\UserService;

public function listAction(
    #[Autowire] UserService $userService,
    #[Autowire('custom.service.alias')] $customService
) {
    $users = $userService->getAllUsers();
    // Method implementation
}

Parameters:

• alias (string|null): Optional service alias for the container, defaults to null (uses the type hint)

IsGranted

The IsGranted attribute provides auth-based access control for controller methods.

use LaminasAttributeController\Security\IsGranted;

#[IsGranted('FULLY_AUTHENTICATED')]
public function authorizedAction()
{
    // Only accessible to authenticated users
    return ['message' => 'authorized area'];
}

Parameters:

• role (string): The role required to access the method

MapRequestPayload

The MapRequestPayload attribute maps the request body to a parameter.

use LaminasAttributeController\Validation\MapRequestPayload;
use App\DTO\UserCreateRequest;

public function createAction(
    #[MapRequestPayload] UserCreateRequest $request
) {
    // $request is populated from the request body
    return ['id' => $this->userService->createUser($request)];
}

This attribute automatically deserializes the request body into the specified type.

Example with Multiple Fields and Validators

use Symfony\Component\Validator\Constraints as Assert;
use JMS\Serializer\Annotation as Serializer;

class UserCreateRequest
{
    #[Assert\NotBlank(message: "Username is required")]
    #[Assert\Length(min: 3, max: 50, minMessage: "Username must be at least {{ limit }} characters", maxMessage: "Username cannot be longer than {{ limit }} characters")]
    public string $username;

    #[Assert\NotBlank(message: "Email is required")]
    #[Assert\Email(message: "The email '{{ value }}' is not a valid email")]
    public string $email;

    #[Assert\NotBlank(message: "Password is required")]
    #[Assert\Length(min: 8, minMessage: "Password must be at least {{ limit }} characters")]
    #[Assert\Regex(
        pattern: "/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d).+$/",
        message: "Password must include at least one uppercase letter, one lowercase letter, and one number"
    )]
    public string $password;

    #[Assert\NotBlank(message: "Age is required")]
    #[Assert\Range(
        min: 18,
        max: 120,
        notInRangeMessage: "You must be between {{ min }} and {{ max }} years old"
    )]
    public int $age;
}

Using this DTO with the MapRequestPayload attribute will automatically validate all fields according to the specified constraints.

MapQueryString

The MapQueryString attribute maps the query string parameters to a typed object.

use LaminasAttributeController\Validation\MapQueryString;
use App\DTO\UserSearchRequest;

public function searchAction(
    #[MapQueryString] UserSearchRequest $searchCriteria
) {
    // $searchCriteria is populated from the query string parameters
    return ['results' => $this->userService->search($searchCriteria)];
}

This attribute automatically deserializes the query string parameters into the specified type, making it easy to work with structured query parameters in GET requests.

Example with Multiple Fields and Validators

use Symfony\Component\Validator\Constraints as Assert;
use JMS\Serializer\Annotation as Serializer;

class UserSearchRequest
{
    #[Assert\Length(min: 2, max: 50, minMessage: "Search term must be at least {{ limit }} characters")]
    public ?string $searchTerm = null;

    #[Assert\Range(
        min: 1,
        max: 100,
        notInRangeMessage: "Results per page must be between {{ min }} and {{ max }}"
    )]
    public int $limit = 20;

    #[Assert\PositiveOrZero(message: "Page number cannot be negative")]
    public int $page = 0;

    #[Assert\Choice(choices: ["asc", "desc"], message: "Sort direction must be either 'asc' or 'desc'")]
    public string $sortDirection = "asc";
}

Using this DTO with the MapQueryString attribute will automatically validate all query parameters according to the specified constraints. This example would handle a query like ?searchTerm=john&limit=50&page=2&sortDirection=desc.

CurrentUser

The CurrentUser attribute injects the current authenticated user into a parameter. For implementation, you need to have a user entity and a service that retrieves the current user from the session or security context implemented LaminasAttributeController\Security\GetCurrentUser

use LaminasAttributeController\Security\CurrentUser;
use App\Entity\User;

public function profileAction(
    #[CurrentUser] User $user
) {
    // $user contains the currently authenticated user
    return ['user' => $user];
}

This attribute provides easy access to the authenticated user without manual retrieval.

Advanced Configuration

Custom Resolvers

The package allows you to create and configure your own parameter resolvers. This is useful when you need custom logic for resolving controller action parameters.

To create a custom resolver:

1. Create a class that implements ParameterResolverInterface:

use LaminasAttributeController\ParameterResolverInterface;
use LaminasAttributeController\ResolutionContext;

final class MyCustomResolver implements ParameterResolverInterface
{
    public function resolve(ResolutionContext $context): mixed
    {
        // Access parameter information
        $parameter = $context->parameter;

        // Access route match information
        $routeMatch = $context->routeMatch;

        // Access parameter attributes
        $attributes = $context->getAttributes();

        // Implement your custom resolution logic
        // ...

        // Return the resolved value
        return $resolvedValue;
    }
}

1. Register your resolver in the configuration:

// In your module.config.php or any other configuration file
return [
    'laminas-attribute-controller' => [
        'resolvers' => [
            // Default resolvers
            FromRouteResolver::class,
            MapRequestPayloadResolver::class,
            MapQueryStringResolver::class,
            QueryParamResolver::class,
            AutowireResolver::class,
            AutoInjectionResolver::class,
            CurrentUserValueResolver::class,
            DefaultValueResolver::class,
            // Your custom resolver
            MyCustomResolver::class,
        ],
    ],
    'service_manager' => [
        'factories' => [
            // Factory for your custom resolver
            MyCustomResolver::class => function (ContainerInterface $container) {
                return new MyCustomResolver(/* dependencies */);
            },
        ],
    ],
];

The order of resolvers in the configuration is important as they are tried in sequence until one returns a non-null value.

Default Resolvers

The package comes with the following default resolvers:

• FromRouteResolver: Resolves parameters from route matches
• MapRequestPayloadResolver: Maps request body to a parameter (POST, PUT, PATCH, etc)
• MapQueryStringResolver: Maps request to a parameter from query params (GET request)
• QueryParamResolver: Extracts and validates query parameters
• AutowireResolver: Provides automatic dependency injection
• AutoInjectionResolver: Provides automatic dependency injection
• CurrentUserValueResolver: Injects the current authenticated user
• DefaultValueResolver: Uses default parameter values

You can customize which resolvers are used by modifying the configuration:

return [
    'laminas-attribute-controller' => [
        'resolvers' => [
            // Only include the resolvers you need
            FromRouteResolver::class,
            MapRequestPayloadResolver::class,
            MapQueryStringResolver::class,
            QueryParamResolver::class,
            AutowireResolver::class,
            AutoInjectionResolver::class,
            CurrentUserValueResolver::class,
            DefaultValueResolver::class,
        ],
    ],
];