How can I generated this MySQL Schema using Doctrine - symfony

Question

CREATE TABLE `languages` (
`id` int(4) UNSIGNED NOT NULL AUTO_INCREMENT,
`name` varchar(50) NOT NULL,
`status` INT(1) NOT NULL DEFAULT '0',
`created_at` datetime NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
CREATE TABLE `languages_content` (
`language_id` int(4) UNSIGNED NOT NULL,
`language` int(4) UNSIGNED NOT NULL,
`label` varchar(50) NOT NULL,
PRIMARY KEY (`language_id`,`language`),
KEY `language` (`language`),
CONSTRAINT `languages_content_idfk_1` FOREIGN KEY (`language_id`) REFERENCES `languages` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
CONSTRAINT `languages_content_idfk_2` FOREIGN KEY (`language`) REFERENCES `languages` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
Is posible to do that? I already try many-to-many relationship, but this remove the 'label' field from the 'languages_content' table.
/**
* Languages
*
* #ORM\Table(name="languages")
* #ORM\Entity
*/
class Languages
{
/**
* #var int
*
* #ORM\Column(name="id", type="integer", nullable=false, options={"unsigned"=true})
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="name", type="string", length=50, nullable=false)
*/
private $name;
/**
* #var int
*
* #ORM\Column(name="status", type="integer", nullable=false)
*/
private $status = '0';
/**
* #var \DateTime
*
* #ORM\Column(name="created_at", type="datetime", nullable=false)
*/
private $createdAt;
/**
* #var \Doctrine\Common\Collections\Collection
*
* #ORM\ManyToMany(targetEntity="Languages", inversedBy="language")
* #ORM\JoinTable(name="languages_content",
* joinColumns={
* #ORM\JoinColumn(name="language_id", referencedColumnName="id")
* },
* inverseJoinColumns={
* #ORM\JoinColumn(name="language", referencedColumnName="id")
* }
* )
*/
private $language = array();
I also try with many-to-one relationship, but this option add an autoincremential field (id) that doesn't exist in languages_content table, as you can see the languages_content is used to relate the translations with the languages ​​in the languages ​​table.
#[ORM\Entity(repositoryClass: LanguagesRepository::class)]
class Languages
{
#[ORM\Id]
#[ORM\GeneratedValue]
#[ORM\Column]
private ?int $id = null;
#[ORM\Column(length: 50, nullable: false)]
private ?string $name = null;
#[ORM\Column(nullable: true)]
private ?int $status = 0;
#[ORM\Column(nullable: true)]
private ?\DateTimeImmutable $createdAt = null;
#[ORM\OneToMany(mappedBy: 'languages', targetEntity: LanguagesContent::class)]
private Collection $language;
Thanks in advance for your help or sugestions.

Answer 1

Doctrine's ManyToMany does not support additional fields so you need to make the join table (i.e. languages_content) yourself
To get rid of the autoincremented ID simply remove the $id and its getter from the entity then add a #[ORM\Id] annotation to both ManyToOnes, if you make a migration this will create a composite primary key like in your SQL example.
Here is an example from the doctrine documentation https://www.doctrine-project.org/projects/doctrine-orm/en/2.13/tutorials/composite-primary-keys.html#use-case-3-join-table-with-metadata