Implement comments (#10)

Allow logged users to comment posts. Edition is not allowed via the API since it doesn't support auth yet.

Symfony UX is used with Turbo to avoid full pages reload, without JavaScript™.

Co-authored-by: clfreville2 <clement.freville2@etu.uca.fr>
Reviewed-on: https://codefirst.iut.uca.fr/git/clement.freville2/herbarium/pulls/10

src/Controller/PostController.php

@@ -2,7 +2,10 @@
 
 namespace App\Controller;
 
+use App\Entity\Comment;
 use App\Entity\Post;
+use App\Entity\User;
+use App\Form\CommentType;
 use App\Form\PostType;
 use App\Repository\PostRepository;
 use Doctrine\ORM\EntityManagerInterface;
@@ -10,7 +13,9 @@ use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Security\Http\Attribute\CurrentUser;
 use Symfony\Component\Security\Http\Attribute\IsGranted;
+use Symfony\UX\Turbo\TurboBundle;
 
 class PostController extends AbstractController
 {
@@ -62,8 +67,12 @@ class PostController extends AbstractController
     #[Route('/post/{id}', name: 'app_post_show', methods: ['GET'])]
     public function show(Post $post): Response
     {
+        $form = $this->createForm(CommentType::class, new Comment(), [
+            'action' => $this->generateUrl('app_post_comment', ['id' => $post->getId()]),
+        ]);
         return $this->render('post/show.html.twig', [
             'post' => $post,
+            'form' => $form,
         ]);
     }
 
@@ -97,4 +106,71 @@ class PostController extends AbstractController
 
         return $this->redirectToRoute('app_posts', [], Response::HTTP_SEE_OTHER);
     }
+
+    #[Route('/post/{id}/comment', name: 'app_post_comment', methods: ['POST'])]
+    public function publishComment(Request $request, Post $post, EntityManagerInterface $entityManager, #[CurrentUser] User $user): Response
+    {
+        $comment = new Comment();
+        $form = $this->createForm(CommentType::class, $comment);
+        $form->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $comment->setRelatedPost($post)
+                ->setAuthor($user);
+            $entityManager->persist($comment);
+            $entityManager->flush();
+
+            if (TurboBundle::STREAM_FORMAT === $request->getPreferredFormat()) {
+                $request->setRequestFormat(TurboBundle::STREAM_FORMAT);
+                return $this->renderBlock('comment/new.stream.html.twig', 'success_stream', ['comment' => $comment]);
+            }
+        }
+        return $this->redirectToRoute('app_post_show', ['id' => $post->getId()], Response::HTTP_SEE_OTHER);
+    }
+
+    #[Route('/comment/{id}/edit', name: 'app_post_comment_edit', methods: ['GET', 'POST'])]
+    public function editComment(Request $request, Comment $comment, EntityManagerInterface $entityManager): Response
+    {
+        $form = $this->createForm(CommentType::class, $comment, [
+            'action' => $this->generateUrl('app_post_comment_edit', ['id' => $comment->getId()]),
+        ]);
+        $form->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $entityManager->flush();
+
+            if ($comment->getRelatedPost() === null) {
+                return $this->redirectToRoute('app_posts', [], Response::HTTP_SEE_OTHER);
+            }
+            return $this->redirectToRoute('app_post_show', [
+                'id' => $comment->getRelatedPost()->getId()
+            ], Response::HTTP_SEE_OTHER);
+        }
+
+        return $this->render('comment/edit.html.twig', [
+            'comment' => $comment,
+            'form' => $form,
+        ]);
+    }
+
+    #[Route('/comment/{id}', name: 'app_post_comment_delete', methods: ['POST'])]
+    #[IsGranted('COMMENT_EDIT', subject: 'comment')]
+    public function deleteComment(Request $request, Comment $comment, EntityManagerInterface $entityManager): Response
+    {
+        if ($this->isCsrfTokenValid('delete'.$comment->getId(), (string) $request->getPayload()->get('_token'))) {
+            $id = $comment->getId();
+            $entityManager->remove($comment);
+            $entityManager->flush();
+
+            if (TurboBundle::STREAM_FORMAT === $request->getPreferredFormat()) {
+                $request->setRequestFormat(TurboBundle::STREAM_FORMAT);
+                return $this->renderBlock('comment/deleted.stream.html.twig', 'success_stream', ['comment' => $id]);
+            }
+        }
+
+        if ($comment->getRelatedPost() === null) {
+            return $this->redirectToRoute('app_posts');
+        }
+        return $this->redirectToRoute('app_post_show', ['id' => $comment->getRelatedPost()->getId()]);
+    }
 }

src/Entity/Comment.php

@@ -0,0 +1,119 @@
+<?php
+
+namespace App\Entity;
+
+use ApiPlatform\Doctrine\Orm\Filter\SearchFilter;
+use ApiPlatform\Metadata\ApiFilter;
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\Get;
+use ApiPlatform\Metadata\GetCollection;
+use App\Repository\CommentRepository;
+use Doctrine\ORM\Mapping as ORM;
+
+#[ORM\Entity(repositoryClass: CommentRepository::class)]
+#[ORM\HasLifecycleCallbacks]
+#[ApiResource(operations: [new GetCollection()])]
+#[ApiFilter(filterClass: SearchFilter::class, properties: ['author', 'related_post'])]
+class Comment
+{
+    #[ORM\Id]
+    #[ORM\GeneratedValue]
+    #[ORM\Column]
+    private ?int $id = null;
+
+    #[ORM\ManyToOne(inversedBy: 'comments')]
+    #[ORM\JoinColumn(nullable: false)]
+    private ?User $author = null;
+
+    #[ORM\ManyToOne(inversedBy: 'comments')]
+    private ?Post $related_post = null;
+
+    #[ORM\Column]
+    private ?\DateTimeImmutable $created_at = null;
+
+    #[ORM\Column]
+    private ?\DateTimeImmutable $edited_at = null;
+
+    #[ORM\Column(length: 255)]
+    private ?string $content = null;
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getAuthor(): ?User
+    {
+        return $this->author;
+    }
+
+    public function setAuthor(?User $author): static
+    {
+        $this->author = $author;
+
+        return $this;
+    }
+
+    public function getRelatedPost(): ?Post
+    {
+        return $this->related_post;
+    }
+
+    public function setRelatedPost(?Post $related_post): static
+    {
+        $this->related_post = $related_post;
+
+        return $this;
+    }
+
+    public function getCreatedAt(): ?\DateTimeImmutable
+    {
+        return $this->created_at;
+    }
+
+    public function setCreatedAt(\DateTimeImmutable $created_at): static
+    {
+        $this->created_at = $created_at;
+
+        return $this;
+    }
+
+    public function getEditedAt(): ?\DateTimeImmutable
+    {
+        return $this->edited_at;
+    }
+
+    public function setEditedAt(\DateTimeImmutable $edited_at): static
+    {
+        $this->edited_at = $edited_at;
+
+        return $this;
+    }
+
+    public function getContent(): ?string
+    {
+        return $this->content;
+    }
+
+    public function setContent(string $content): static
+    {
+        $this->content = $content;
+
+        return $this;
+    }
+
+    #[ORM\PrePersist]
+    public function setCreatedAtDate(): void
+    {
+        if ($this->created_at === null) {
+            $this->created_at = new \DateTimeImmutable();
+            $this->edited_at = $this->created_at;
+        }
+    }
+
+    #[ORM\PreUpdate]
+    public function setEditedAtDate(): void
+    {
+        $this->edited_at = new \DateTimeImmutable();
+    }
+}

src/Entity/Post.php

@@ -8,6 +8,8 @@ use ApiPlatform\Metadata\ApiProperty;
 use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\GetCollection;
 use App\Repository\PostRepository;
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
 use Doctrine\DBAL\Types\Types;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Attribute\Groups;
@@ -61,6 +63,17 @@ class Post
     #[Groups(['post:collection:read'])]
     private ?Species $species = null;
 
+    /**
+     * @var Collection<int, Comment>
+     */
+    #[ORM\OneToMany(targetEntity: Comment::class, mappedBy: 'related_post', fetch: 'EXTRA_LAZY')]
+    private Collection $comments;
+
+    public function __construct()
+    {
+        $this->comments = new ArrayCollection();
+    }
+
     public function getId(): ?int
     {
         return $this->id;
@@ -158,4 +171,34 @@ class Post
             $this->publicationDate = new \DateTimeImmutable();
         }
     }
+
+    /**
+     * @return Collection<int, Comment>
+     */
+    public function getComments(): Collection
+    {
+        return $this->comments;
+    }
+
+    public function addComment(Comment $comment): static
+    {
+        if (!$this->comments->contains($comment)) {
+            $this->comments->add($comment);
+            $comment->setRelatedPost($this);
+        }
+
+        return $this;
+    }
+
+    public function removeComment(Comment $comment): static
+    {
+        if ($this->comments->removeElement($comment)) {
+            // set the owning side to null (unless already changed)
+            if ($comment->getRelatedPost() === $this) {
+                $comment->setRelatedPost(null);
+            }
+        }
+
+        return $this;
+    }
 }

src/Entity/User.php

@@ -10,6 +10,8 @@ use ApiPlatform\Metadata\Patch;
 use ApiPlatform\Metadata\Put;
 use App\Repository\UserRepository;
 use App\State\UserPasswordHasher;
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
 use Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface;
@@ -60,6 +62,17 @@ class User implements UserInterface, PasswordAuthenticatedUserInterface
     #[Groups(['user:create', 'user:update'])]
     private ?string $plainPassword = null;
 
+    /**
+     * @var Collection<int, Comment>
+     */
+    #[ORM\OneToMany(targetEntity: Comment::class, mappedBy: 'author')]
+    private Collection $comments;
+
+    public function __construct()
+    {
+        $this->comments = new ArrayCollection();
+    }
+
     public function getId(): ?int
     {
         return $this->id;
@@ -146,4 +159,34 @@ class User implements UserInterface, PasswordAuthenticatedUserInterface
         // If you store any temporary, sensitive data on the user, clear it here
         // $this->plainPassword = null;
     }
+
+    /**
+     * @return Collection<int, Comment>
+     */
+    public function getComments(): Collection
+    {
+        return $this->comments;
+    }
+
+    public function addComment(Comment $comment): static
+    {
+        if (!$this->comments->contains($comment)) {
+            $this->comments->add($comment);
+            $comment->setAuthor($this);
+        }
+
+        return $this;
+    }
+
+    public function removeComment(Comment $comment): static
+    {
+        if ($this->comments->removeElement($comment)) {
+            // set the owning side to null (unless already changed)
+            if ($comment->getAuthor() === $this) {
+                $comment->setAuthor(null);
+            }
+        }
+
+        return $this;
+    }
 }

src/Form/CommentType.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Form;
+
+use App\Entity\Comment;
+use App\Entity\Post;
+use App\Entity\User;
+use Symfony\Bridge\Doctrine\Form\Type\EntityType;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\TextareaType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class CommentType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder
+            ->add('content', TextareaType::class)
+        ;
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'data_class' => Comment::class,
+        ]);
+    }
+}

src/Repository/CommentRepository.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Repository;
+
+use App\Entity\Comment;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\Persistence\ManagerRegistry;
+
+/**
+ * @extends ServiceEntityRepository<Comment>
+ */
+class CommentRepository extends ServiceEntityRepository
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, Comment::class);
+    }
+
+    //    /**
+    //     * @return Comment[] Returns an array of Comment objects
+    //     */
+    //    public function findByExampleField($value): array
+    //    {
+    //        return $this->createQueryBuilder('c')
+    //            ->andWhere('c.exampleField = :val')
+    //            ->setParameter('val', $value)
+    //            ->orderBy('c.id', 'ASC')
+    //            ->setMaxResults(10)
+    //            ->getQuery()
+    //            ->getResult()
+    //        ;
+    //    }
+
+    //    public function findOneBySomeField($value): ?Comment
+    //    {
+    //        return $this->createQueryBuilder('c')
+    //            ->andWhere('c.exampleField = :val')
+    //            ->setParameter('val', $value)
+    //            ->getQuery()
+    //            ->getOneOrNullResult()
+    //        ;
+    //    }
+}

src/Repository/PostRepository.php

@@ -25,6 +25,8 @@ class PostRepository extends ServiceEntityRepository
     public function findPaginatedPosts(int $page, int $limit): Paginator
     {
         $query = $this->createQueryBuilder('p')
+            ->addSelect('species')
+            ->leftJoin('p.species', 'species')
             ->setFirstResult(($page - 1) * $limit)
             ->setMaxResults($limit);
 

src/Security/Voter/CommentVoter.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Security\Voter;
+
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\Authorization\Voter\Voter;
+use Symfony\Component\Security\Core\User\UserInterface;
+
+class CommentVoter extends Voter
+{
+    public const EDIT = 'COMMENT_EDIT';
+
+    protected function supports(string $attribute, mixed $subject): bool
+    {
+        // replace with your own logic
+        // https://symfony.com/doc/current/security/voters.html
+        return $attribute === self::EDIT
+            && $subject instanceof \App\Entity\Comment;
+    }
+
+    protected function voteOnAttribute(string $attribute, mixed $subject, TokenInterface $token): bool
+    {
+        $user = $token->getUser();
+
+        // if the user is anonymous, do not grant access
+        if (!$user instanceof UserInterface) {
+            return false;
+        }
+
+        if ($subject->getAuthor() === $user) {
+            return true;
+        }
+
+        return in_array('ROLE_ADMIN', $user->getRoles(), true);
+    }
+}