Set PK from ManyToMany annotations in Doctrine2 entity - php

Question

I've a ManyToMany relationship between Pais and FabricanteDistribuidor tables defined as follow:
Pais.php
class Pais
{
// column definitions
/**
* #ORM\ManyToMany(targetEntity="AppBundle\Entity\FabricanteDistribuidor", inversedBy="paises", cascade={"persist"})
* #ORM\JoinTable(name="negocio.fabricante_distribuidor_pais", schema="negocio",
* joinColumns={#ORM\JoinColumn(name="fabricante_distribuidor_id", referencedColumnName="id")},
* inverseJoinColumns={#ORM\JoinColumn(name="pais_id", referencedColumnName="id")}
* )
*/
protected $fabricanteDistribuidor;
/**
* Add fabricanteDistribuidor
*
* #param AppBundle\Entity\FabricanteDistribuidor $fabricanteDistribuidor
*/
public function addfabricanteDistribuidor(\AppBundle\Entity\FabricanteDistribuidor $fabricanteDistribuidor)
{
$this->fabricanteDistribuidor[] = $fabricanteDistribuidor;
}
/**
* Get fabricanteDistribuidor
*
* #return Doctrine\Common\Collections\Collection
*/
public function getfabricanteDistribuidor()
{
return $this->fabricanteDistribuidor;
}
}
FabricanteDistribuidor.php
class FabricanteDistribuidor
{
// column definitions
/**
* #ORM\ManyToMany(targetEntity="AppBundle\Entity\Pais", mappedBy="fabricanteDistribuidor", cascade={"persist"})
*/
protected $paises;
public function __construct()
{
$this->paises = new ArrayCollection();
}
/**
* Set paises
*
* #param AppBundle\Entity\Pais $pais
* #return FabricanteDistribuidor
*/
public function addPaises(\AppBundle\Entity\Pais $pais)
{
$this->paises[] = $pais;
return $this;
}
/**
* Get paises
*
* #return Doctrine\Common\Collections\Collection
*/
public function getPaises()
{
return $this->paises;
}
}
That will generate a table fabricante_distribuidor_pais on the schema negocio with fabricante_distribuidor_id and pais_id FK pointing to the PK on the related tables, that's fine.
Regarding this scenario:
1- It's possible to define fabricante_distribuidor_id and pais_id as PK on the fabricante_distribuidor_pais table? I mean adding some extra annotation or I need to create a external entity and set them as #ORM\Id on the column definition?
2- Are the addXXX and getXXX methods right in my entities? By right I mean: I should add one or many paises (from Pais entity) to FabricanteDistribuidor easily and I don't care about to the inverse relation meaning I will not add FabricanteDistribuidor from a Pais, are them right or do I need to change something?

Answer 1

1- If one id is a primary key doesn't the relation becomes many to one/ one to many ? Even 1to1 if both are PK
2- If you don't care about the inverse you are going to add getters and setters in only one entity yes. You can still change it to a biredictionnal later with the attribute "mappedBy"
Check if an entity exists :
You can do that in your controller :
for example in Pays
$data = $em->getRepository('AcmeBundle:Pais')->findOneByFabricanteDistribuidor($id);
if($data)
{
// the entity is allready persisted
}
else
{
// no, we can persist the entity
}