Symfony 5 中处理自引用多对多关系表单的实践

<?php

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;

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

    /**
     * @ORM\Column(type="string", length=50)
     */
    private $name;

    /**
     * @ORM\Column(type="string", length=50)
     */
    private $firstname;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $birthdayDate;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $gender;

    /**
     * @ORM\ManyToMany(targetEntity=Person::class)
     * @ORM\JoinTable(name="family",
     *      joinColumns={@ORM\JoinColumn(name="person_id", referencedColumnName="id")},
     *      inverseJoinColumns={@ORM\JoinColumn(name="family_member_id", referencedColumnName="id")}
     * )
     */
    private $myFamily;

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

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

    public function getName(): ?string
    {
        return $this->