How to not multiply request in symfony when using association table - php

Question

I have a trouble with symfony.
I have three table in my database :
Musicien, Composer and Oeuvre
Composer is an association table between Musicien and Oeuvre.
When I load a page who show a Musicien, it show his Oeuvres.
So I make a join between Musicien and Composer, and between Composer and Oeuvre.
From a Musicien I can get all his composer with one request. But, to show his Oeuvres, I need to loop on his Composers to get all Oeuvres.
It makes one request by get, so if I have n Composer it will makes n request.
It is horribly slow.
I want to make it with one request, but I don't know how to do that, can you help me ?
Maybe if I make the join between Musicien and Oeuvre directly, but I don't know how to do that too.
Thank you.
This is my code :
Musicien:
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Musicien
*
* #ORM\Table(name="Musicien", indexes={#ORM\Index(name="IDX_AC6BE67520B77BF2", columns={"Code_Pays"}), #ORM\Index(name="IDX_AC6BE675E1990660", columns={"Code_Genre"}), #ORM\Index(name="IDX_AC6BE675D389A975", columns={"Code_Instrument"})})
* #ORM\Entity
*/
class Musicien
{
/* Some attributes here*/
/**
* #var \Composer
*
* #ORM\OneToMany(targetEntity="Composer", mappedBy="codeMusicien")
*/
private $composer;
public function __construct(){
$this->oeuvres = new ArrayCollection();
}
public function getOeuvres()
{
$oeuvres = new ArrayCollection();
$oeuvres->add($this->composer->getCodeOeuvre());
// foreach($this->composer as $c){
// $oeuvres->add($c->getCodeOeuvre());
// }
return $oeuvres;
}
}
Composer
<?php
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Composer
*
* #ORM\Table(name="Composer", indexes={#ORM\Index(name="IDX_6105648EE694D5AB", columns={"Code_Musicien"}), #ORM\Index(name="IDX_6105648ECB48FCBD", columns={"Code_Oeuvre"})})
* #ORM\Entity
*/
class Composer
{
/**
* #var int
*
* #ORM\Column(name="Code_Composer", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $codeComposer;
/**
* #var \Musicien
*
* #ORM\ManyToOne(targetEntity="Musicien", inversedBy="composer")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="Code_Musicien", referencedColumnName="Code_Musicien")
* })
*/
private $codeMusicien;
/**
* #var \Oeuvre
*
* #ORM\ManyToOne(targetEntity="Oeuvre", inversedBy="composer")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="Code_Oeuvre", referencedColumnName="Code_Oeuvre")
* })
*/
private $codeOeuvre;
public function getCodeComposer(): ?int
{
return $this->codeComposer;
}
public function getCodeMusicien(): ?Musicien
{
return $this->codeMusicien;
}
public function setCodeMusicien(?Musicien $codeMusicien): self
{
$this->codeMusicien = $codeMusicien;
return $this;
}
public function getCodeOeuvre(): ?Oeuvre
{
return $this->codeOeuvre;
}
public function setCodeOeuvre(?Oeuvre $codeOeuvre): self
{
$this->codeOeuvre = $codeOeuvre;
return $this;
}
}
Oeuvre
<?php
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Oeuvre
*
* #ORM\Table(name="Oeuvre", indexes={#ORM\Index(name="IDX_32522BC898F61075", columns={"Code_Type"})})
* #ORM\Entity
*/
class Oeuvre
{
/**
* Some attributes here
*/
/**
* #var \Composer
*
* #ORM\OneToMany(targetEntity="Composer", mappedBy="codeOeuvre")
* #ORM\JoinTable(name="Composer")
*/
private $composer;
public function __construct(){
$this->musiciens = new ArrayCollection();
}
public function getMusiciens()
{
$musiciens = new ArrayCollection();
foreach($this->composer as $c){
$musiciens->add($c->getCodeMusicien());
}
return $musiciens;
}
}