Splitting Application Event Handlers and Symfony Event Handlers (App vs. Infra)

config/services.yaml

@@ -115,6 +115,9 @@ services:
     Cheeper\Chapter7\Infrastructure\:
         resource: '../src/Cheeper/Chapter7/Infrastructure/**/*.php'
 
+    Cheeper\Chapter7\Application\Event\:
+        resource: '../src/Cheeper/Chapter7/Application/Event/**/*Handler.php'
+
     Cheeper\Chapter7\Application\Projector\:
         resource: '../src/Cheeper/Chapter7/Application/Projector/**/*.php'
 
@@ -128,15 +131,15 @@ services:
         tags:
             - { name: messenger.message_handler, bus: command.bus }
 
-    Cheeper\Chapter7\Infrastructure\EventHandler\SymfonyNewAuthorSignedHandler:
+    Cheeper\Chapter7\Infrastructure\Application\Event\Author\SymfonyNewAuthorSignedHandler:
         tags:
             - { name: messenger.message_handler, bus: event.bus }
-        class: 'Cheeper\Chapter7\Infrastructure\EventHandler\SymfonyNewAuthorSignedHandler'
+        class: 'Cheeper\Chapter7\Infrastructure\Application\Event\Author\SymfonyNewAuthorSignedHandler'
 
-    Cheeper\Chapter7\Infrastructure\EventHandler\SymfonyCheepPostedHandler:
+    Cheeper\Chapter7\Infrastructure\Application\Event\Cheep\SymfonyCheepPostedHandler:
         tags:
             - { name: messenger.message_handler, bus: event.bus }
-        class: 'Cheeper\Chapter7\Infrastructure\EventHandler\SymfonyCheepPostedHandler'
+        class: 'Cheeper\Chapter7\Infrastructure\Application\Event\Cheep\SymfonyCheepPostedHandler'
 
     Cheeper\Chapter7\Infrastructure\ProjectionHandler\SymfonyAddCheepToTimelineProjectionHandler:
         tags:

src/App/API/Resources/Timeline.php

@@ -15,4 +15,4 @@ final class Timeline
     public ?UuidInterface $id = null;
 
     public array $cheeps;
-}
+}

src/App/Command/FollowCommand.php

@@ -1,4 +1,5 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace App\Command;
 

src/App/Command/PostCheepCommand.php

@@ -1,4 +1,5 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace App\Command;
 

src/App/Command/ProjectCounterFollowersCommand.php

@@ -1,10 +1,10 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace App\Command;
 
 use Cheeper\Chapter6\Application\Projector\Author\CountFollowerProjector;
 use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
-use Doctrine\DBAL\Driver\Connection;
 use Doctrine\ORM\EntityManagerInterface;
 use Redis;
 use Symfony\Component\Console\Attribute\AsCommand;

src/App/Command/SignUpCommand.php

@@ -1,4 +1,5 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace App\Command;
 

src/App/Controller/Chapter2/CheepController.php

@@ -1,4 +1,5 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace App\Controller\Chapter2;
 

src/App/Controller/Chapter4/Commands/Instantiation/PostCheepController.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace App\Controller\Chapter4\Commands\Instantiation;
 
-use Cheeper\Application\Command\Author\SignUp;
 use Cheeper\Application\Command\Cheep\PostCheep;
 use Ramsey\Uuid\Uuid;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;

src/App/Controller/Chapter7/CountFollowersController.php

@@ -23,7 +23,7 @@ final class CountFollowersController extends AbstractController
         $httpCode = Response::HTTP_ACCEPTED;
         $httpContent = [
             '_meta' => [],
-            'data' => []
+            'data' => [],
         ];
 
         try {
@@ -45,4 +45,4 @@ final class CountFollowersController extends AbstractController
         );
     }
 }
-//end-snippet
+//end-snippet

src/App/Controller/Chapter7/FollowAuthorController.php

@@ -28,7 +28,7 @@ final class FollowAuthorController extends AbstractController
             $commandBus->handle($command);
 
             $httpContent = [
-                'message_id' => $command->messageId()?->toString()
+                'message_id' => $command->messageId()?->toString(),
             ];
         } catch (
             AuthorDoesNotExist $exception

src/App/Controller/Chapter7/GetTimelineController.php

@@ -28,7 +28,7 @@ final class GetTimelineController extends AbstractController
             Timeline::fromArray([
                 'author_id' => $authorId,
                 'offset' => $offset,
-                'size' => $size
+                'size' => $size,
             ])
         );
 
@@ -40,4 +40,4 @@ final class GetTimelineController extends AbstractController
         );
     }
 }
-//end-snippet
+//end-snippet

src/App/Controller/Chapter7/SignUpAuthorController.php

@@ -57,4 +57,3 @@ final class SignUpAuthorController extends AbstractController
         );
     }
 }
-

src/App/DataFixtures/AppFixtures.php

@@ -1,4 +1,5 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace App\DataFixtures;
 

src/App/DataFixtures/AuthorsFixtures.php

@@ -1,4 +1,5 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace App\DataFixtures;
 

src/App/Entity/User.php

@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 namespace App\Entity;
 
@@ -211,7 +212,7 @@ class User implements UserInterface, PasswordAuthenticatedUserInterface
     /**
      * @see UserInterface
      */
-    public function eraseCredentials()
+    public function eraseCredentials(): void
     {
         // If you store any temporary, sensitive data on the user, clear it here
         // $this->plainPassword = null;

src/App/Messenger/CommandBus.php

@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace App\Messenger;
 
+use function Functional\first;
 use Symfony\Component\Messenger\Envelope;
 use Symfony\Component\Messenger\Exception\HandlerFailedException;
 use Symfony\Component\Messenger\MessageBusInterface;
-use function Functional\first;
 
 // snippet command-bus
 final class CommandBus

src/App/Messenger/FromScratch.php

@@ -9,16 +9,14 @@ use Cheeper\Application\Command\Cheep\PostCheepHandler;
 use Cheeper\Chapter6\Infrastructure\Application\Event\InMemoryEventBus;
 use Cheeper\Infrastructure\Persistence\DoctrineOrmAuthors;
 use Cheeper\Infrastructure\Persistence\DoctrineOrmCheeps;
-use Doctrine\DBAL\DriverManager;
 use Doctrine\ORM\Configuration;
-use Doctrine\ORM\EntityManager;
 use Symfony\Component\Messenger\Handler\HandlersLocator;
 use Symfony\Component\Messenger\MessageBus;
 use Symfony\Component\Messenger\Middleware\HandleMessageMiddleware;
 
 final class FromScratch
 {
-    public function __invoke()
+    public function __invoke(): void
     {
         //snippet symfony-messenger-from-scratch
         $connection = \Doctrine\DBAL\DriverManager::getConnection([/** ... */]);

src/App/Messenger/FromScratchWithCustomMiddleware.php

@@ -11,17 +11,14 @@ use Cheeper\Application\Command\Cheep\PostCheepHandler;
 use Cheeper\Chapter6\Infrastructure\Application\Event\InMemoryEventBus;
 use Cheeper\Infrastructure\Persistence\DoctrineOrmAuthors;
 use Cheeper\Infrastructure\Persistence\DoctrineOrmCheeps;
-use Doctrine\DBAL\DriverManager;
 use Doctrine\ORM\Configuration;
-use Doctrine\ORM\EntityManager;
-use Monolog\Logger;
 use Symfony\Component\Messenger\Handler\HandlersLocator;
 use Symfony\Component\Messenger\MessageBus;
 use Symfony\Component\Messenger\Middleware\HandleMessageMiddleware;
 
 final class FromScratchWithCustomMiddleware
 {
-    public function __invoke()
+    public function __invoke(): void
     {
         //snippet symfony-messenger-from-scratch-with-custom-middleware
         $connection = \Doctrine\DBAL\DriverManager::getConnection([/** ... */]);

src/App/Repository/UserRepository.php

@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 namespace App\Repository;
 
@@ -28,7 +29,7 @@ class UserRepository extends ServiceEntityRepository implements PasswordUpgrader
     public function upgradePassword(PasswordAuthenticatedUserInterface $user, string $newHashedPassword): void
     {
         if (!$user instanceof User) {
-            throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', \get_class($user)));
+            throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', $user::class));
         }
 
         $user->setPassword($newHashedPassword);

src/Cheeper/AllChapters/Application/Command/Author/FollowHandler.php

@@ -7,9 +7,9 @@ namespace Cheeper\AllChapters\Application\Command\Author;
 use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Author\UserName;
+use Cheeper\AllChapters\DomainModel\Follow\Follow as FollowAggregate;
 use Cheeper\AllChapters\DomainModel\Follow\FollowId;
 use Cheeper\AllChapters\DomainModel\Follow\Follows;
-use Cheeper\AllChapters\DomainModel\Follow\Follow as FollowAggregate;
 
 final class FollowHandler
 {

src/Cheeper/AllChapters/Application/Command/Author/SignUpWithEvents/SignUpHandler.php

@@ -5,7 +5,6 @@ declare(strict_types=1);
 namespace Cheeper\AllChapters\Application\Command\Author\SignUpWithEvents;
 
 use Cheeper\AllChapters\Application\Command\Author\SignUp;
-use Cheeper\Chapter6\Application\Event\EventBus;
 use Cheeper\AllChapters\DomainModel\Author\Author;
 use Cheeper\AllChapters\DomainModel\Author\AuthorAlreadyExists;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
@@ -14,6 +13,7 @@ use Cheeper\AllChapters\DomainModel\Author\BirthDate;
 use Cheeper\AllChapters\DomainModel\Author\EmailAddress;
 use Cheeper\AllChapters\DomainModel\Author\UserName;
 use Cheeper\AllChapters\DomainModel\Author\Website;
+use Cheeper\Chapter6\Application\Event\EventBus;
 
 //snippet sign-up-handler-with-events
 final class SignUpHandler

src/Cheeper/AllChapters/Application/Command/Cheep/PostCheepHandler.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Cheeper\AllChapters\Application\Command\Cheep;
 
-use Cheeper\Chapter6\Application\Event\EventBus;
 use Cheeper\AllChapters\DomainModel\Author\Author;
 use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
@@ -13,6 +12,7 @@ use Cheeper\AllChapters\DomainModel\Cheep\Cheep;
 use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
 use Cheeper\AllChapters\DomainModel\Cheep\CheepMessage;
 use Cheeper\AllChapters\DomainModel\Cheep\Cheeps;
+use Cheeper\Chapter6\Application\Event\EventBus;
 
 //snippet post-cheep-handler
 final class PostCheepHandler

src/Cheeper/AllChapters/Application/Projection/CheepProjection.php

@@ -1,14 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Cheeper\AllChapters\Application\Projection;
-
-use Cheeper\AllChapters\DomainModel\Cheep\CheepPosted;
-
-//snippet cheep-projection-interface
-interface CheepProjection
-{
-    public function whenCheepPosted(CheepPosted $event): void;
-}
-//end-snippet

src/Cheeper/AllChapters/DomainModel/Cheep/Cheep.php

@@ -6,7 +6,6 @@ namespace Cheeper\AllChapters\DomainModel\Cheep;
 
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\TriggerEventsTrait;
-use DateTimeImmutable;
 
 class Cheep
 {

src/Cheeper/AllChapters/DomainModel/Cheep/CheepDate.php

@@ -5,8 +5,8 @@ declare(strict_types=1);
 namespace Cheeper\AllChapters\DomainModel\Cheep;
 
 use Cheeper\AllChapters\DomainModel\Common\ValueObject;
-use InvalidArgumentException;
 use DateTimeImmutable;
+use InvalidArgumentException;
 
 final class CheepDate extends ValueObject
 {

src/Cheeper/AllChapters/DomainModel/Cheep/Cheeps.php

@@ -4,8 +4,6 @@ declare(strict_types=1);
 
 namespace Cheeper\AllChapters\DomainModel\Cheep;
 
-use Cheeper\AllChapters\DomainModel\Author\Author;
-
 //snippet cheeps
 interface Cheeps
 {

src/Cheeper/AllChapters/DomainModel/Follow/Follow.php

@@ -43,8 +43,7 @@ class Follow
         FollowId $followId,
         AuthorId $fromAuthorId,
         AuthorId $toAuthorId,
-    ): static
+    ): static {
-    {
         return new static(
             followId: $followId,
             fromAuthorId: $fromAuthorId,

src/Cheeper/AllChapters/DomainModel/TriggerEventsTrait.php

@@ -26,4 +26,4 @@ trait TriggerEventsTrait
         $this->domainEvents = [];
     }
 }
-// end-snippet
+// end-snippet

src/Cheeper/AllChapters/Infrastructure/Persistence/DoctrineOrmAuthors.php

@@ -9,7 +9,6 @@ use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Author\UserName;
 use Doctrine\ORM\EntityManagerInterface;
-use Ramsey\Uuid\Uuid;
 
 //snippet doctrine-orm-authors
 final class DoctrineOrmAuthors implements Authors

src/Cheeper/AllChapters/Infrastructure/Persistence/DoctrineOrmCheeps.php

@@ -4,8 +4,6 @@ declare(strict_types=1);
 
 namespace Cheeper\AllChapters\Infrastructure\Persistence;
 
-use Cheeper\AllChapters\DomainModel\Author\Author;
-use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Cheep\Cheep;
 use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
 use Cheeper\AllChapters\DomainModel\Cheep\Cheeps;

src/Cheeper/AllChapters/Infrastructure/Persistence/DoctrineOrmFollows.php

@@ -8,8 +8,6 @@ use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Follow\Follow;
 use Cheeper\AllChapters\DomainModel\Follow\Follows;
 use Doctrine\ORM\EntityManagerInterface;
-use Doctrine\ORM\EntityRepository;
-use Doctrine\Persistence\ObjectRepository;
 
 //snippet doctrine-orm-follows
 final class DoctrineOrmFollows implements Follows

src/Cheeper/AllChapters/Infrastructure/Persistence/InMemoryCheeps.php

@@ -4,13 +4,9 @@ declare(strict_types=1);
 
 namespace Cheeper\AllChapters\Infrastructure\Persistence;
 
-use Cheeper\AllChapters\DomainModel\Author\Author;
-use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Cheep\Cheep;
 use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
 use Cheeper\AllChapters\DomainModel\Cheep\Cheeps;
-use function Functional\filter;
-use function Functional\select;
 
 //snippet inmemory-cheeps
 final class InMemoryCheeps implements Cheeps

src/Cheeper/AllChapters/Infrastructure/Persistence/InMemoryFollows.php

@@ -45,9 +45,7 @@ final class InMemoryFollows implements Follows
     {
         return reduce_left(
             $this->collection,
-            function(Follow $f, string $key, array $collection, int $initial) use($authorId): int {
+            fn (Follow $f, string $key, array $collection, int $initial): int => $initial + ($f->fromAuthorId()->equals($authorId) ? 1 : 0),
-                return $initial + ($f->fromAuthorId()->equals($authorId) ? 1 : 0);
-            },
             0
         );
     }

src/Cheeper/Chapter2/Layered/AuthorNotFound.php

@@ -8,4 +8,4 @@ use RuntimeException;
 
 final class AuthorNotFound extends RuntimeException
 {
-}
+}

src/Cheeper/Chapter2/Layered/Authors.php

@@ -5,8 +5,8 @@ declare(strict_types=1);
 namespace Cheeper\Chapter2\Layered;
 
 use Cheeper\Chapter2\Author;
-use PDO;
 use function mimic\hydrate;
+use PDO;
 
 //snippet authors
 class Authors

src/Cheeper/Chapter2/Layered/CheepService.php

@@ -1,4 +1,5 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace Cheeper\Chapter2\Layered;
 

src/Cheeper/Chapter2/Layered/Cheeps.php

@@ -1,10 +1,11 @@
-<?php declare(strict_types=1);
+<?php
+declare(strict_types=1);
 
 namespace Cheeper\Chapter2\Layered;
 
 use Cheeper\Chapter2\Cheep;
-use PDO;
 use function mimic\hydrate;
+use PDO;
 
 //snippet cheeps
 class Cheeps

src/Cheeper/Chapter5/Application/Query/CountFollowersHandlerWithDbAccess/CountFollowersHandler.php

@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter5\Application\Query\CountFollowersHandlerWithDbAccess;
 
+use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\Chapter5\Application\Query\CountFollowers;
 use Cheeper\Chapter5\Application\Query\CountFollowersResponse;
-use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Doctrine\ORM\EntityManagerInterface;
 
 //snippet count-followers-handler

src/Cheeper/Chapter5/Application/Query/CountFollowersHandlerWithRedisAccess/CountFollowersHandler.php

@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter5\Application\Query\CountFollowersHandlerWithRedisAccess;
 
-use Cheeper\Chapter5\Application\Query\CountFollowers;
-use Cheeper\Chapter5\Application\Query\CountFollowersResponse;
 use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
+use Cheeper\Chapter5\Application\Query\CountFollowers;
+use Cheeper\Chapter5\Application\Query\CountFollowersResponse;
 use Redis;
 
 //snippet count-followers-handler

src/Cheeper/Chapter5/Application/Query/CountFollowersHandlerWithRepositoriesAccess/CountFollowersHandler.php

@@ -4,12 +4,12 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter5\Application\Query\CountFollowersHandlerWithRepositoriesAccess;
 
-use Cheeper\Chapter5\Application\Query\CountFollowers;
-use Cheeper\Chapter5\Application\Query\CountFollowersResponse;
-use Cheeper\Chapter5\DomainModel\Follow\Followers;
 use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\Authors;
+use Cheeper\Chapter5\Application\Query\CountFollowers;
+use Cheeper\Chapter5\Application\Query\CountFollowersResponse;
+use Cheeper\Chapter5\DomainModel\Follow\Followers;
 
 //snippet count-followers-handler
 final class CountFollowersHandler
@@ -17,8 +17,7 @@ final class CountFollowersHandler
     public function __construct(
         private Followers $followers,
         private Authors   $authors
-    )
+    ) {
-    {
     }
 
     public function __invoke(CountFollowers $query): CountFollowersResponse

src/Cheeper/Chapter5/Application/Query/CountFollowersResponse.php

@@ -7,7 +7,6 @@ namespace Cheeper\Chapter5\Application\Query;
 //snippet count-followers-response
 final class CountFollowersResponse
 {
-
     public function __construct(
         private string $authorId,
         private string $authorUsername,

src/Cheeper/Chapter5/DomainModel/Follow/NumberOfFollowers.php

@@ -15,7 +15,6 @@ class NumberOfFollowers
         #[ORM\GeneratedValue(strategy: "NONE")]
         #[ORM\Id]
         private UuidInterface $userId,
-
         #[ORM\Column(type: "integer")]
         private int $followers
     ) {

src/Cheeper/Chapter5/Infrastructure/Application/Query/SymfonyQueryBus.php

@@ -6,10 +6,10 @@ namespace Cheeper\Chapter5\Infrastructure\Application\Query;
 
 use Cheeper\Chapter5\Application\Query\Query;
 use Cheeper\Chapter5\Application\Query\QueryBus;
+use function Functional\first;
 use Symfony\Component\Messenger\Exception\HandlerFailedException;
 use Symfony\Component\Messenger\HandleTrait;
 use Symfony\Component\Messenger\MessageBusInterface;
-use function Functional\first;
 
 //snippet symfony-query-bus
 final class SymfonyQueryBus implements QueryBus

src/Cheeper/Chapter5/Infrastructure/Persistence/DoctrineOrmFollowers.php

@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter5\Infrastructure\Persistence;
 
+use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\Chapter5\DomainModel\Follow\Followers;
 use Cheeper\Chapter5\DomainModel\Follow\NumberOfFollowers;
-use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Doctrine\ORM\EntityManagerInterface;
 
 final class DoctrineOrmFollowers implements Followers
@@ -20,4 +20,4 @@ final class DoctrineOrmFollowers implements Followers
     {
         return null;
     }
-}
+}

src/Cheeper/Chapter6/Application/Command/Author/WithDomainEvents/FollowHandler.php

@@ -4,13 +4,13 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter6\Application\Command\Author\WithDomainEvents;
 
-use Cheeper\Chapter6\Application\Command\Author\Follow;
-use Cheeper\Chapter6\Application\Event\EventBus;
 use Cheeper\AllChapters\DomainModel\Author\Author;
 use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Follow\Follows;
+use Cheeper\Chapter6\Application\Command\Author\Follow;
+use Cheeper\Chapter6\Application\Event\EventBus;
 
 //snippet follow-handler-with-event
 final class FollowHandler

src/Cheeper/Chapter6/Application/Command/Author/WithIdempotency/FollowHandler.php

@@ -4,13 +4,13 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter6\Application\Command\Author\WithIdempotency;
 
-use Cheeper\Chapter6\Application\Command\Author\Follow;
-use Cheeper\Chapter6\Application\Event\EventBus;
 use Cheeper\AllChapters\DomainModel\Author\Author;
 use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Follow\Follows;
+use Cheeper\Chapter6\Application\Command\Author\Follow;
+use Cheeper\Chapter6\Application\Event\EventBus;
 
 final class FollowHandler
 {

src/Cheeper/Chapter6/Application/Command/Author/WithoutDomainEvents/FollowHandler.php

@@ -4,12 +4,12 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter6\Application\Command\Author\WithoutDomainEvents;
 
-use Cheeper\Chapter6\Application\Command\Author\Follow;
 use Cheeper\AllChapters\DomainModel\Author\Author;
 use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Follow\Follows;
+use Cheeper\Chapter6\Application\Command\Author\Follow;
 
 //snippet follow-handler-without-event
 final class FollowHandler

src/Cheeper/Chapter6/Application/Projector/Author/CountFollowers.php

@@ -7,7 +7,6 @@ namespace Cheeper\Chapter6\Application\Projector\Author;
 //snippet count-followers
 final class CountFollowers
 {
-
     public static function ofAuthor(string $authorId): self
     {
         return new self($authorId);

src/Cheeper/Chapter6/Infrastructure/Application/Event/InMemoryEventBus.php

@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter6\Infrastructure\Application\Event;
 
-use Cheeper\Chapter6\Application\Event\EventBus;
 use Cheeper\AllChapters\DomainModel\DomainEvent;
+use Cheeper\Chapter6\Application\Event\EventBus;
 
 //snippet in-memory-event-bus
 final class InMemoryEventBus implements EventBus
@@ -13,8 +13,7 @@ final class InMemoryEventBus implements EventBus
     public function __construct(
         /** @param DomainEvent[] $events */
         private array $events = []
-    )
+    ) {
-    {
     }
 
     public function events(): array

src/Cheeper/Chapter6/Infrastructure/Application/Event/SymfonyEventBus.php

@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter6\Infrastructure\Application\Event;
 
-use Cheeper\Chapter6\Application\Event\EventBus;
 use Cheeper\AllChapters\DomainModel\DomainEvent;
+use Cheeper\Chapter6\Application\Event\EventBus;
 use Symfony\Component\Messenger\HandleTrait;
 use Symfony\Component\Messenger\MessageBusInterface;
 

src/Cheeper/Chapter6/Infrastructure/Application/Projector/Author/SagaStyle/SymfonyAuthorFollowedHandler.php

@@ -5,8 +5,8 @@ declare(strict_types=1);
 namespace Cheeper\Chapter6\Infrastructure\Application\Projector\Author\SagaStyle;
 
 use App\Messenger\CommandBus;
-use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
 use Cheeper\AllChapters\DomainModel\Follow\AuthorFollowed;
+use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
 use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
 //snippet symfony-author-followed-handler-in-saga-style

src/Cheeper/Chapter6/Infrastructure/Application/Projector/Author/SymfonyAuthorFollowedHandler.php

@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter6\Infrastructure\Application\Projector\Author;
 
+use Cheeper\AllChapters\DomainModel\Follow\AuthorFollowed;
 use Cheeper\Chapter6\Application\Projector\Author\CountFollowerProjector;
 use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
-use Cheeper\AllChapters\DomainModel\Follow\AuthorFollowed;
 use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
 //snippet symfony-author-followed-handler
@@ -32,4 +32,4 @@ final class SymfonyAuthorFollowedHandler implements MessageSubscriberInterface
         );
     }
 }
-//end-snippet
+//end-snippet

src/Cheeper/Chapter6/Infrastructure/Application/Projector/Author/SymfonyAuthorUnfollowedHandler.php

@@ -5,8 +5,8 @@ declare(strict_types=1);
 namespace Cheeper\Chapter6\Infrastructure\Application\Projector\Author;
 
 use App\Messenger\CommandBus;
-use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
 use Cheeper\AllChapters\DomainModel\Follow\AuthorUnfollowed;
+use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
 use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
 //snippet symfony-author-unfollowed-handler

src/Cheeper/Chapter6/Infrastructure/Application/Projector/Author/SymfonyCountFollowerProjector.php

@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter6\Infrastructure\Application\Projector\Author;
 
-use Cheeper\Chapter6\Application\Projector\Author\CountFollowerProjector;
-use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
 use Cheeper\AllChapters\DomainModel\Follow\AuthorFollowed;
 use Cheeper\AllChapters\DomainModel\Follow\AuthorUnfollowed;
+use Cheeper\Chapter6\Application\Projector\Author\CountFollowerProjector;
+use Cheeper\Chapter6\Application\Projector\Author\CountFollowers;
 use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
 //snippet symfony-projector-count-followers
@@ -22,7 +22,7 @@ final class SymfonyCountFollowerProjector implements MessageSubscriberInterface
     {
         yield AuthorUnfollowed::class => [
             'bus' => 'event.bus',
-            'method' => 'handleAuthorUnfollowed'
+            'method' => 'handleAuthorUnfollowed',
         ];
 
         yield AuthorFollowed::class => [
@@ -56,6 +56,5 @@ final class SymfonyCountFollowerProjector implements MessageSubscriberInterface
             CountFollowers::ofAuthor($event->toAuthorId())
         );
     }
-
 }
 //end-snippet

src/Cheeper/Chapter7/Application/Command/Author/Follow.php

@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Application\Command\Author;
 
-use Cheeper\Chapter7\Application\MessageTrait;
 use Cheeper\AllChapters\DomainModel\Follow\FollowId;
+use Cheeper\Chapter7\Application\MessageTrait;
 
 final class Follow
 {
@@ -47,4 +47,4 @@ final class Follow
             $array['to_author_id'] ?? '',
         );
     }
-}
+}

src/Cheeper/Chapter7/Application/Command/Author/FollowHandler.php

@@ -4,12 +4,12 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Application\Command\Author;
 
+use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
+use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\Chapter7\Application\Event\EventBus;
 use Cheeper\Chapter7\DomainModel\Author\Author;
 use Cheeper\Chapter7\DomainModel\Author\Authors;
 use Cheeper\Chapter7\DomainModel\Follow\Follows;
-use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
-use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 
 final class FollowHandler
 {
@@ -51,4 +51,4 @@ final class FollowHandler
 
         return $author;
     }
-}
+}

src/Cheeper/Chapter7/Application/Command/Author/SignUpHandler.php

@@ -4,15 +4,15 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Application\Command\Author;
 
-use Cheeper\Chapter7\Application\Event\EventBus;
-use Cheeper\Chapter7\DomainModel\Author\Author;
-use Cheeper\Chapter7\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Author\AuthorAlreadyExists;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\BirthDate;
 use Cheeper\AllChapters\DomainModel\Author\EmailAddress;
 use Cheeper\AllChapters\DomainModel\Author\UserName;
 use Cheeper\AllChapters\DomainModel\Author\Website;
+use Cheeper\Chapter7\Application\Event\EventBus;
+use Cheeper\Chapter7\DomainModel\Author\Author;
+use Cheeper\Chapter7\DomainModel\Author\Authors;
 
 //snippet sign-up-handler-with-events
 final class SignUpHandler

src/Cheeper/Chapter7/Application/Command/Cheep/PostCheepHandler.php

@@ -4,15 +4,15 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Application\Command\Cheep;
 
+use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
+use Cheeper\AllChapters\DomainModel\Author\AuthorId;
+use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
+use Cheeper\AllChapters\DomainModel\Cheep\CheepMessage;
 use Cheeper\Chapter7\Application\Event\EventBus;
 use Cheeper\Chapter7\DomainModel\Author\Author;
 use Cheeper\Chapter7\DomainModel\Author\Authors;
 use Cheeper\Chapter7\DomainModel\Cheep\Cheep;
 use Cheeper\Chapter7\DomainModel\Cheep\Cheeps;
-use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
-use Cheeper\AllChapters\DomainModel\Author\AuthorId;
-use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
-use Cheeper\AllChapters\DomainModel\Cheep\CheepMessage;
 
 //snippet post-cheep-handler
 final class PostCheepHandler

src/Cheeper/Chapter7/Application/Event/Author/AuthorFollowedEventHandler.php

@@ -2,29 +2,20 @@
 
 declare(strict_types=1);
 
-namespace Cheeper\Chapter7\Infrastructure\EventHandler;
+namespace Cheeper\Chapter7\Application\Event\Author;
 
 use Cheeper\Chapter7\Application\Projector\Author\CountFollowerProjector;
 use Cheeper\Chapter7\Application\Projector\Author\CountFollowersProjection;
 use Cheeper\Chapter7\DomainModel\Follow\AuthorFollowed;
-use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
-//snippet symfony-author-followed-handler
+//snippet author-followed-event-handler
-final class SymfonyAuthorFollowedHandler implements MessageSubscriberInterface
+final class AuthorFollowedEventHandler
 {
     public function __construct(
         private CountFollowerProjector $projector
     ) {
     }
 
-    public static function getHandledMessages(): iterable
-    {
-        yield AuthorFollowed::class => [
-            'method' => 'handle',
-            'from_transport' => 'chapter7_events'
-        ];
-    }
-
     public function handle(AuthorFollowed $event): void
     {
         $this->projector->__invoke(
@@ -32,4 +23,4 @@ final class SymfonyAuthorFollowedHandler implements MessageSubscriberInterface
         );
     }
 }
-//end-snippet
+//end-snippet

src/Cheeper/Chapter7/Application/Event/Author/NewAuthorSignedEventHandler.php

@@ -2,30 +2,21 @@
 
 declare(strict_types=1);
 
-namespace Cheeper\Chapter7\Infrastructure\EventHandler;
+namespace Cheeper\Chapter7\Application\Event\Author;
 
 use Cheeper\Chapter7\Application\Projector\Author\CreateFollowersCounterProjection;
 use Cheeper\Chapter7\Application\Projector\Author\CreateFollowersCounterProjectionProjector;
 use Cheeper\Chapter7\DomainModel\Author\NewAuthorSigned;
-use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
-//snippet symfony-new-author-signed-handler
+//snippet new-author-signed-event-handler
-final class SymfonyNewAuthorSignedHandler implements MessageSubscriberInterface
+final class NewAuthorSignedEventHandler
 {
     public function __construct(
         private CreateFollowersCounterProjectionProjector $projector
     ) {
     }
 
-    public static function getHandledMessages(): iterable
+    public function handle(NewAuthorSigned $event): void
-    {
-        yield NewAuthorSigned::class => [
-            'method' => 'handlerNewAuthorSigned',
-            'from_transport' => 'chapter7_events'
-        ];
-    }
-
-    public function handlerNewAuthorSigned(NewAuthorSigned $event): void
     {
         $this->projector->__invoke(
             CreateFollowersCounterProjection::ofAuthor(
@@ -35,4 +26,4 @@ final class SymfonyNewAuthorSignedHandler implements MessageSubscriberInterface
         );
     }
 }
-//end-snippet
+//end-snippet

src/Cheeper/Chapter7/Application/Event/Cheep/CheepPostedEventHandler.php

@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Cheeper\Chapter7\Infrastructure\EventHandler;
+namespace Cheeper\Chapter7\Application\Event\Cheep;
 
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\Chapter7\Application\Projector\ProjectionBus;
@@ -11,10 +11,9 @@ use Cheeper\Chapter7\DomainModel\Cheep\CheepPosted;
 use Cheeper\Chapter7\DomainModel\Follow\Follows;
 use DateTimeImmutable;
 use DateTimeInterface;
-use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
-//snippet cheep-projection-to-redis
+//snippet cheep-posted-event-handler
-final class SymfonyCheepPostedHandler implements MessageSubscriberInterface
+final class CheepPostedEventHandler
 {
     public function __construct(
         private Follows $follows,
@@ -22,7 +21,7 @@ final class SymfonyCheepPostedHandler implements MessageSubscriberInterface
     ) {
     }
 
-    public function whenCheepPosted(CheepPosted $event): void
+    public function handle(CheepPosted $event): void
     {
         $follows = $this->follows->toAuthorId(
             AuthorId::fromString($event->authorId())
@@ -34,8 +33,7 @@ final class SymfonyCheepPostedHandler implements MessageSubscriberInterface
                     authorId:       $follow->fromAuthorId()->toString(),
                     cheepId:        $event->cheepId(),
                     cheepMessage:   $event->cheepMessage(),
-                    cheepDate:      DateTimeImmutable
+                    cheepDate:      DateTimeImmutable::createFromFormat('Y-m-d H:i:s', $event->cheepDate())
-                        ::createFromFormat('Y-m-d H:i:s', $event->cheepDate())
                         ->setTimezone(new \DateTimeZone('UTC'))
                         ->format(DateTimeInterface::ATOM),
                 )
@@ -55,13 +53,5 @@ final class SymfonyCheepPostedHandler implements MessageSubscriberInterface
             // );
         }
     }
-
-    public static function getHandledMessages(): iterable
-    {
-        yield CheepPosted::class => [
-            'method' => 'whenCheepPosted',
-            'from_transport' => 'chapter7_events'
-        ];
-    }
 }
-//end-snippet
+//end-snippet

src/Cheeper/Chapter7/Application/MessageTrait.php

@@ -79,4 +79,4 @@ trait MessageTrait
         return $this->correlationId;
     }
 }
-//end-snippet
+//end-snippet

src/Cheeper/Chapter7/Application/Projector/Author/CountFollowerProjector.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Application\Projector\Author;
 
-use Cheeper\AllChapters\DomainModel\Author\AuthorDoesNotExist;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Doctrine\ORM\EntityManagerInterface;
 
@@ -35,7 +34,7 @@ final class CountFollowerProjector
         $projectionResult = [
             'id' => $authorId->toString(),
             'username' => $result['username'],
-            'followers' => 0
+            'followers' => 0,
         ];
 
         if (false !== $result) {

src/Cheeper/Chapter7/Application/Projector/Author/CreateFollowersCounterProjectionProjector.php

@@ -22,7 +22,7 @@ final class CreateFollowersCounterProjectionProjector
         $result = [
             'id' => $projection->authorId(),
             'username' => $projection->authorUsername(),
-            'followers' => 0
+            'followers' => 0,
         ];
 
         $this->redis->set(

src/Cheeper/Chapter7/Application/Projector/Timeline/AddCheepToTimelineProjection.php

@@ -1,10 +1,11 @@
 <?php
+declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Application\Projector\Timeline;
 
 use Cheeper\Chapter7\Application\Projector\Projection;
 
-//snippet put-cheep-on-redis-timeline
+//snippet add-cheep-to-timeline-projection
 final class AddCheepToTimelineProjection implements Projection
 {
     public function __construct(
@@ -15,4 +16,4 @@ final class AddCheepToTimelineProjection implements Projection
     ) {
     }
 }
-//end-snippet
+//end-snippet

src/Cheeper/Chapter7/Application/Projector/Timeline/AddCheepToTimelineProjector.php

@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Application\Projector\Timeline;
 

src/Cheeper/Chapter7/Application/Query/Timeline/TimelineHandler.php

@@ -22,10 +22,10 @@ final class TimelineHandler
 
         return new TimelineResponse(
             array_map(
-                static fn(string $cheep): array => json_decode($cheep, true, flags: JSON_THROW_ON_ERROR),
+                static fn (string $cheep): array => json_decode($cheep, true, flags: JSON_THROW_ON_ERROR),
                 $serializedCheeps
             )
         );
     }
 }
-//end-snippet
+//end-snippet

src/Cheeper/Chapter7/DomainModel/Author/Author.php

@@ -4,13 +4,13 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\DomainModel\Author;
 
-use Cheeper\Chapter7\DomainModel\Follow\Follow;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\BirthDate;
 use Cheeper\AllChapters\DomainModel\Author\EmailAddress;
 use Cheeper\AllChapters\DomainModel\Author\UserName;
 use Cheeper\AllChapters\DomainModel\Author\Website;
 use Cheeper\AllChapters\DomainModel\Follow\FollowId;
+use Cheeper\Chapter7\DomainModel\Follow\Follow;
 use Cheeper\Chapter7\DomainModel\TriggerEventsTrait;
 use DateTimeImmutable;
 use InvalidArgumentException;
@@ -142,4 +142,4 @@ final class Author
 
         return $value;
     }
-}
+}

src/Cheeper/Chapter7/DomainModel/Follow/Follow.php

@@ -44,8 +44,7 @@ final class Follow
         FollowId $followId,
         AuthorId $fromAuthorId,
         AuthorId $toAuthorId,
-    ): static
+    ): static {
-    {
         return new static(
             followId: $followId->toString(),
             fromAuthorId: $fromAuthorId->toString(),
@@ -68,4 +67,4 @@ final class Follow
         return FollowId::fromString($this->followId);
     }
 }
-// end-snippet
+// end-snippet

src/Cheeper/Chapter7/DomainModel/TriggerEventsTrait.php

@@ -26,4 +26,4 @@ trait TriggerEventsTrait
         $this->domainEvents = [];
     }
 }
-// end-snippet
+// end-snippet

src/Cheeper/Chapter7/Infrastructure/Application/Event/Author/SymfonyAuthorFollowedHandler.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Cheeper\Chapter7\Infrastructure\Application\Event\Author;
+
+use Cheeper\Chapter7\Application\Event\Author\AuthorFollowedEventHandler;
+use Cheeper\Chapter7\DomainModel\Follow\AuthorFollowed;
+use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
+
+//snippet symfony-author-followed-event-handler
+final class SymfonyAuthorFollowedHandler implements MessageSubscriberInterface
+{
+    public function __construct(
+        private AuthorFollowedEventHandler $eventHandler
+    ) {
+    }
+
+    public function handle(AuthorFollowed $event): void
+    {
+        $this->eventHandler->handle($event);
+    }
+
+    public static function getHandledMessages(): iterable
+    {
+        yield AuthorFollowed::class => [
+            'method' => 'handle',
+            'from_transport' => 'chapter7_events',
+        ];
+    }
+}
+//end-snippet

src/Cheeper/Chapter7/Infrastructure/Application/Event/Author/SymfonyNewAuthorSignedHandler.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Cheeper\Chapter7\Infrastructure\Application\Event\Author;
+
+use Cheeper\Chapter7\Application\Event\Author\NewAuthorSignedEventHandler;
+use Cheeper\Chapter7\DomainModel\Author\NewAuthorSigned;
+use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
+
+//snippet symfony-new-author-signed-event-handler
+final class SymfonyNewAuthorSignedHandler implements MessageSubscriberInterface
+{
+    public function __construct(
+        private NewAuthorSignedEventHandler $eventHandler
+    ) {
+    }
+
+    public function handle(NewAuthorSigned $event): void
+    {
+        $this->eventHandler->handle($event);
+    }
+
+    public static function getHandledMessages(): iterable
+    {
+        yield NewAuthorSigned::class => [
+            'method' => 'handle',
+            'from_transport' => 'chapter7_events',
+        ];
+    }
+}
+//end-snippet

src/Cheeper/Chapter7/Infrastructure/Application/Event/Cheep/SymfonyCheepPostedHandler.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Cheeper\Chapter7\Infrastructure\Application\Event\Cheep;
+
+use Cheeper\Chapter7\Application\Event\Cheep\CheepPostedEventHandler;
+use Cheeper\Chapter7\DomainModel\Cheep\CheepPosted;
+use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
+
+//snippet symfony-cheep-posted-event-handler
+final class SymfonyCheepPostedHandler implements MessageSubscriberInterface
+{
+    public function __construct(
+        private CheepPostedEventHandler $eventHandler
+    ) {
+    }
+
+    public function handle(CheepPosted $event): void
+    {
+        $this->eventHandler->handle($event);
+    }
+
+    public static function getHandledMessages(): iterable
+    {
+        yield CheepPosted::class => [
+            'method' => 'handle',
+            'from_transport' => 'chapter7_events',
+        ];
+    }
+}
+//end-snippet

src/Cheeper/Chapter7/Infrastructure/Application/Event/InMemoryEventBus.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Infrastructure\Application\Event;
 
-
 //snippet in-memory-event-bus
 use Cheeper\Chapter7\Application\Event\EventBus;
 use Cheeper\Chapter7\DomainModel\DomainEvent;
@@ -14,8 +13,7 @@ final class InMemoryEventBus implements EventBus
     public function __construct(
         /** @param DomainEvent[] $events */
         private array $events = []
-    )
+    ) {
-    {
     }
 
     public function events(): array

src/Cheeper/Chapter7/Infrastructure/Application/Projector/SymfonyProjectionBus.php

@@ -6,10 +6,10 @@ namespace Cheeper\Chapter7\Infrastructure\Application\Projector;
 
 use Cheeper\Chapter7\Application\Projector\Projection;
 use Cheeper\Chapter7\Application\Projector\ProjectionBus;
+use function Functional\first;
 use Symfony\Component\Messenger\Exception\HandlerFailedException;
 use Symfony\Component\Messenger\HandleTrait;
 use Symfony\Component\Messenger\MessageBusInterface;
-use function Functional\first;
 
 //snippet symfony-projection-bus
 final class SymfonyProjectionBus implements ProjectionBus

src/Cheeper/Chapter7/Infrastructure/Persistence/DoctrineOrmAuthors.php

@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Infrastructure\Persistence;
 
-use Cheeper\Chapter7\DomainModel\Author\Author;
-use Cheeper\Chapter7\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\UserName;
+use Cheeper\Chapter7\DomainModel\Author\Author;
+use Cheeper\Chapter7\DomainModel\Author\Authors;
 use Doctrine\ORM\EntityManagerInterface;
 
 //snippet doctrine-orm-authors

src/Cheeper/Chapter7/Infrastructure/Persistence/DoctrineOrmCheeps.php

@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Infrastructure\Persistence;
 
+use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
 use Cheeper\Chapter7\DomainModel\Cheep\Cheep;
 use Cheeper\Chapter7\DomainModel\Cheep\Cheeps;
-use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
 use Doctrine\ORM\EntityManagerInterface;
 use Ramsey\Uuid\Uuid;
 

src/Cheeper/Chapter7/Infrastructure/Persistence/DoctrineOrmFollows.php

@@ -4,12 +4,10 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Infrastructure\Persistence;
 
+use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\Chapter7\DomainModel\Follow\Follow;
 use Cheeper\Chapter7\DomainModel\Follow\Follows;
-use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Doctrine\ORM\EntityManagerInterface;
-use Doctrine\ORM\EntityRepository;
-use Doctrine\Persistence\ObjectRepository;
 
 //snippet doctrine-orm-follows
 final class DoctrineOrmFollows implements Follows

src/Cheeper/Chapter7/Infrastructure/Persistence/InMemoryAuthors.php

@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Infrastructure\Persistence;
 
-use Cheeper\Chapter7\DomainModel\Author\Author;
-use Cheeper\Chapter7\DomainModel\Author\Authors;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Author\UserName;
+use Cheeper\Chapter7\DomainModel\Author\Author;
+use Cheeper\Chapter7\DomainModel\Author\Authors;
 use function Functional\head;
 use function Functional\select;
 

src/Cheeper/Chapter7/Infrastructure/Persistence/InMemoryCheeps.php

@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Infrastructure\Persistence;
 
+use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
 use Cheeper\Chapter7\DomainModel\Cheep\Cheep;
 use Cheeper\Chapter7\DomainModel\Cheep\Cheeps;
-use Cheeper\AllChapters\DomainModel\Cheep\CheepId;
 
 //snippet inmemory-cheeps
 final class InMemoryCheeps implements Cheeps

src/Cheeper/Chapter7/Infrastructure/Persistence/InMemoryFollows.php

@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Cheeper\Chapter7\Infrastructure\Persistence;
 
-use Cheeper\Chapter7\DomainModel\Follow\Follow;
-use Cheeper\Chapter7\DomainModel\Follow\Follows;
 use Cheeper\AllChapters\DomainModel\Author\AuthorId;
 use Cheeper\AllChapters\DomainModel\Follow\FollowId;
+use Cheeper\Chapter7\DomainModel\Follow\Follow;
+use Cheeper\Chapter7\DomainModel\Follow\Follows;
 use function Functional\head;
 use function Functional\reduce_left;
 use function Functional\select;
@@ -45,9 +45,7 @@ final class InMemoryFollows implements Follows
     {
         return reduce_left(
             $this->collection,
-            function(Follow $f, string $key, array $collection, int $initial) use($authorId): int {
+            fn (Follow $f, string $key, array $collection, int $initial): int => $initial + ($f->fromAuthorId()->equals($authorId) ? 1 : 0),
-                return $initial + ($f->fromAuthorId()->equals($authorId) ? 1 : 0);
-            },
             0
         );
     }

src/Cheeper/Chapter7/Infrastructure/ProjectionHandler/SymfonyAddCheepToTimelineProjectionHandler.php

@@ -8,7 +8,7 @@ use Cheeper\Chapter7\Application\Projector\Timeline\AddCheepToTimelineProjection
 use Cheeper\Chapter7\Application\Projector\Timeline\AddCheepToTimelineProjector;
 use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
 
-//snippet cheep-projection-to-redis
+//snippet add-cheep-to-one-timeline
 final class SymfonyAddCheepToTimelineProjectionHandler implements MessageSubscriberInterface
 {
     public function __construct(
@@ -25,8 +25,8 @@ final class SymfonyAddCheepToTimelineProjectionHandler implements MessageSubscri
     {
         yield AddCheepToTimelineProjection::class => [
             'method' => 'handle',
-            'from_transport' => 'chapter7_async_projections'
+            'from_transport' => 'chapter7_async_projections',
         ];
     }
 }
-//end-snippet
+//end-snippet