How to retrieve associated ManyToOne entity? - symfony

Question

In controller I try to retrieve all order products:
$products = $this->getDoctrine()->getRepository('AppBundle:Ordr')->find(1)->getOrdrProducts();
var_dump($products);
... but $products contain no products.
I try to imitate this.
Entity\Ordr.php :
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* #ORM\Table(name="ordr")
* #ORM\Entity
*/
class Ordr
{
public function __construct()
{
$this->ordr_products = new ArrayCollection();
}
/**
* #ORM\Column(name="idOrdr", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $idordr;
/**
* #ORM\Column(type="string")
*/
private $name;
/**
* #ORM\OneToMany(targetEntity="OrdrProduct", mappedBy="ordr")
*/
protected $ordr_products;
/**
* #return \Doctrine\Common\Collections\Collection
*/
public function getOrdrProducts()
{
return $this->ordr_products;
}
public function getIdordr()
{
return $this->idordr;
}
public function addOrdrProducts(\AppBundle\Entity\OrdrProduct $ordrProducts)
{
$this->ordr_products[] = $ordrProducts;
return $this;
}
public function removeOrdrProducts(\AppBundle\Entity\OrdrProduct $ordrProducts)
{
$this->ordr_products->removeElement($ordrProducts);
}
}
Entity\OrdrProduct.php :
/**
* #ORM\Table(name="ordr_products", indexes={#ORM\Index(name="idOrdr_idx", columns={"idOrdr"})})
* #ORM\Entity
*/
class OrdrProduct
{
/**
* #ORM\Column(name="idOrdrProduct", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $idordrproduct;
/**
* #ORM\Column(type="string")
*/
private $name;
/**
* #ORM\ManyToOne(targetEntity="AppBundle\Entity\Ordr", inversedBy="ordr_products")
* #ORM\JoinColumn(name="idOrdr", referencedColumnName="idOrdr")
*/
private $ordr;
public function getIdordrproduct()
{
return $this->idordrproduct;
}
public function setOrdr(\AppBundle\Entity\Ordr $ordr = null)
{
$this->ordr = $ordr;
return $this;
}
public function getOrdr()
{
return $this->ordr;
}
}
My post is mostly code, I apologize for that. I dont know what to add more about the issue.
I can add something more about something else.

Answer 1

Hope this will help you:
Try this to get one order by id (with all order products related to it)
#AppBundle\Repository\OrderRepository.php
public function findOrderById($id)
{
$qb = $this->createQueryBuilder('o')
->join('o.ordr_products', 'r')
->addSelect('r')
->where('o.id = :id')
->setParameter(':id', $id)
;
return $qb->getQuery()
->getOneOrNullResult();
;
}