Discussion entity

Nous allons créer un système de messagerie avec plusieurs participants dans plusieurs discussions.

En utilisant la commande php bin/console make:entity nous allons créer une entité Discussion qui contiendra pour le moment les participants. Créez simplement l'attribut participants avec une relation en ManyToMany sur User

<?php

namespace App\Entity;

use ApiPlatform\Core\Annotation\ApiResource;
use App\Repository\DiscussionRepository;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ApiResource()
 * @ORM\Entity(repositoryClass=DiscussionRepository::class)
 */
class Discussion
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\ManyToMany(targetEntity=User::class)
     */
    private $participants;

    /**
     * @ORM\OneToMany(targetEntity=Message::class, mappedBy="discussion", orphanRemoval=true)
     */
    private $messages;

    public function __construct()
    {
        $this->participants = new ArrayCollection();
    }

    public function getId(): ?int
    {
        return $this->id;
    }

    /**
     * @return Collection|User[]
     */
    public function getParticipants(): Collection
    {
        return $this->participants;
    }

    public function addParticipant(User $participant): self
    {
        if (!$this->participants->contains($participant)) {
            $this->participants[] = $participant;
        }

        return $this;
    }

    public function removeParticipant(User $participant): self
    {
        $this->participants->removeElement($participant);

        return $this;
    }

    /**
     * @return Collection|Message[]
     */
    public function getMessages(): Collection
    {
        return $this->messages;
    }

    public function addMessage(Message $message): self
    {
        if (!$this->messages->contains($message)) {
            $this->messages[] = $message;
            $message->setDiscussion($this);
        }

        return $this;
    }

    public function removeMessage(Message $message): self
    {
        if ($this->messages->removeElement($message)) {
            // set the owning side to null (unless already changed)
            if ($message->getDiscussion() === $this) {
                $message->setDiscussion(null);
            }
        }

        return $this;
    }
}

<?php

namespace App\Repository;

use App\Entity\Discussion;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\Persistence\ManagerRegistry;

/**
 * @method Discussion|null find($id, $lockMode = null, $lockVersion = null)
 * @method Discussion|null findOneBy(array $criteria, array $orderBy = null)
 * @method Discussion[]    findAll()
 * @method Discussion[]    findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
 */
class DiscussionRepository extends ServiceEntityRepository
{
    public function __construct(ManagerRegistry $registry)
    {
        parent::__construct($registry, Discussion::class);
    }

    // /**
    //  * @return Discussion[] Returns an array of Discussion objects
    //  */
    /*
    public function findByExampleField($value)
    {
        return $this->createQueryBuilder('d')
            ->andWhere('d.exampleField = :val')
            ->setParameter('val', $value)
            ->orderBy('d.id', 'ASC')
            ->setMaxResults(10)
            ->getQuery()
            ->getResult()
        ;
    }
    */

    /*
    public function findOneBySomeField($value): ?Discussion
    {
        return $this->createQueryBuilder('d')
            ->andWhere('d.exampleField = :val')
            ->setParameter('val', $value)
            ->getQuery()
            ->getOneOrNullResult()
        ;
    }
    */
}

Nous pouvons maintenant créer des conversations avec des participants avec ce payload sur POST /api/discussions

{
    "participants": [
        "/api/users/10",
        "/api/users/11",
        "/api/users/12"
    ]
}

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