Insert a field into joint-table doctrine - symfony

Question

I want to insert into my joint-table RoleUser idUser and idRole ,but in the function I should add an object user and role
How can I do that?
the joint table RoleUser :
/**
* RoleUser
*
* #ORM\Table(name="role_user", indexes={#ORM\Index(name="fk_role_user_id", columns={"ref_user_id"}), #ORM\Index(name="fk_role_id", columns={"ref_role_id"})})
* #ORM\Entity(repositoryClass="AppBundle\Repository\RoleUserRepository")
*/
class RoleUser
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $id;
/**
* #var \AppBundle\Entity\Role
*
* #ORM\ManyToOne(targetEntity="AppBundle\Entity\Role")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="ref_role_id", referencedColumnName="id")
* })
*/
private $refRole;
/**
* #var \AppBundle\Entity\User
*
* #ORM\ManyToOne(targetEntity="AppBundle\Entity\User")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="ref_user_id", referencedColumnName="id")
* })
*/
private $refUser;
/**
* #param Role $refRole
*/
public function setRefRole(\AppBundle\Entity\Role $refRole)
{
$this->refRole = $refRole;
}
/**
* #param User $refUser
*/
public function setRefUser(\AppBundle\Entity\User $refUser)
{
$this->refUser= $refUser;
}
}
In my controller I want to insert the following (for a particular case I should insert in the background, the user can't choose his role):
$user = new User();
$role= new Role();
$roleUser =new RoleUser();
$roleUser->setRefUser($user->getId());
$roleUser->setRefRole(1);
but I konw that I should pass a user and a role :
$roleUser->setRefUser($user);
$roleUser->setRefRole($role);

Answer 1

You need to use a relation ManyToMany instead of OneToMany and remove your Entity RoleUser. you can follow the next example in the documentation official, to mapping this kind of relations.
For the save:
In this case you need to add in the two entities this relation:
<?php
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Location
*
* #ORM\Table(name="location")
* #ORM\Entity
*/
class Location
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* <p>Represent the </p>
* #ORM\ManyToMany(targetEntity="LogoLocation", mappedBy="locations")
*/
private $logoLocationCurse;
/**
* Location constructor.
*/
public function __construct()
{
$this->logoLocationCurse = new ArrayCollection();
}
public function addlogoLocationCurse(LogoLocation $location)
{
$this->logoLocationCurse->add($location);
$location->addLocations($this);
}
public function removeLogo(LogoLocation $location)
{
$this->logoLocationCurse->removeElement($location);
$location->removeLocation($this);
}
}
<?php
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;
use \DateTime;
/**
* Class LogoLocation
* #ORM\Table(name="logo_location_curso")
* #ORM\Entity
*/
class LogoLocation
{
/**
* #var integer
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* Many Users have Many Groups.
* #ORM\ManyToMany(targetEntity="Location", inversedBy="logocurso")
* #ORM\JoinTable(name="logo_locations")
*/
private $locations;
/**
* LogoLocation constructor.
*/
public function __construct()
{
$this->locations = new ArrayCollection();
}
/**
* #param Location $location
*/
public function addLocations(Location $location)
{
$this->locations->add($location);
}
/**
* #param Location $location
*/
public function removeLocation(Location $location)
{
$this->locations->removeElement($location);
}
/**
*
*/
public function removeLocations()
{
/** #var Location $location */
foreach ($this->locations as $location) {
$location->removeLogo($this);
}
}
}
and make the flush