how to join on many-to-many relations using querybuilder? - symfony

Question

I am trying to rebuild it in Symfony2 on a many-to-many relationship between users and accounts with query builder but I am failing. this is the DQL
return $er->createQueryBuilder('a')
->leftJoin('\FEB\UserBundle\Entity\Userr', 'u')
->where('a.id = :id')
->setParameter('id', $options['pepe']);
This is the entities:
user.php
namespace FEB\UserBundle\Entity;
use FOS\UserBundle\Entity\User as BaseUser;
use Doctrine\ORM\Mapping as ORM;
/**
* #ORM\Entity
* #ORM\Table(name="feb_user")
*/
class User extends BaseUser
{
/**
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
public function __construct()
{
parent::__construct();
// tu propia lógica
}
}
Account.php
namespace FEB\UserBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Account
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="FEB\UserBundle\Entity\AccountRepository")
*/
class Account
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* Many-To-Many, Unidirectional
*
* #var ArrayCollection $idusr
*
* #ORM\ManyToMany(targetEntity="\FEB\UserBundle\Entity\User")
* #ORM\JoinTable(name="accounts_users",
* joinColumns={#ORM\JoinColumn(name="account_id", referencedColumnName="id")},
* inverseJoinColumns={#ORM\JoinColumn(name="usr_id", referencedColumnName="id")}
* )
*/
private $idusr;
public function __construct() {
$this->idusr = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Set idusr
*
* #param string $idusr
* #return Account
*/
public function setIdusr($idusr)
{
$this->idusr = $idusr;
return $this;
}
/**
* Get idusr
*
* #return integer
*/
public function getIdusr()
{
return $this->idusr;
}
When I execute the DQL I got all the records of "account" table and not the join:
The SQL statement I want to run would be this:
SELECT *
FROM Account a
LEFT JOIN accounts_users au ON ( au.usr_id = a.id )
WHERE au.usr_id = 1
How can I fix it?
Edit 1:
The idea is retrieve the result to populate a drop-down in account form:
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('titulo')
->add('tweet', 'textarea')
->add('photo', 'file', array('required' => false))
->add('tags', 'entity', array(
'class' => 'FEBTagsBundle:tag',
'property' => 'tag',
'empty_value' => 'Selecciona tags',
'multiple' => true))
->add('idaccount', 'entity', array(
'class' => 'FEBUserBundle:Account',
'property' => 'username',
'query_builder' => function(EntityRepository $er ) use ($options) {
return $er->createQueryBuilder('a')
->leftJoin('\FEB\UserBundle\Entity\User', 'u')
->where('a.id = :id')
->setParameter('id', $options['pepe']);
//->andWhere('w.visible = 1')
//->andWhere('w.booked = 0');
;},
'empty_value' => 'Selecciona account',
'multiple' => false))
;
}
EDIT2: More info.
The goal is:
From the id of the "feb_user" table, I get the username of the "Account" table. The table feb_user and Account tables are related through the "accounts_users" table.

Answer 1

Correct me if I'm wrong, but you can just query the user like:
$Account = $er->find(<<some_id>>);
Now you can fetch the account and can access the User entity:
$User = $Account->getIduser();

Answer 2

I finally found the solution!
My mistake was in the way I created the DQL. In the leftjoin sentence I referred to the entity, andthe correct way is making reference to the variable that linked the two entities. Would be as follows:
->add('idaccount', 'entity', array(
'class' => 'FEBUserBundle:Account',
'property' => 'username',
'query_builder' => function(EntityRepository $er ) use ($options) {
return $er->createQueryBuilder('a')
->leftJoin('a.idusr', 'u')
->where('u.id = :id')
->setParameter('id', $options['pepe']);
},
'empty_value' => 'Selecciona account',
'multiple' => false));
Thanks to all!!!!