Symfony2 building ManyToOne relationship in Entities - symfony

Question

I have two entities in a OneToMany relationship, Perfil and IPerfil. Perfil can have several IPerfil's associated:
>
class Perfil
{
/**
* #var integer $id
*
* #ORM\Column(name="id_perfiles", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="SEQUENCE")
* #ORM\SequenceGenerator(sequenceName="P360.perfiles_seq")
* #ORM\OneToMany(targetEntity="IPerfil", mappedBy="id")
*/
private $id;
And the other one:
>
class IPerfil
{
/**
* #var integer $id
* #ORM\ManyToOne(targetEntity="Perfil")
* #ORM\JoinColumn(name="id_perfiles", referencedColumnName="id_perfiles", onDelete="CASCADE")
*/
protected $id;
I'm able to lazyload from IPerfil to Perfil, but not in the other direction (from Perfil to IPerfil), but if I can't do any DQL over IPerfil or createQueryBuilder()->setPameter... Symfony will always return an error like this:
[Semantical Error] line 0, col 9 near 'id_perfiles FROM': Error: Invalid PathExpression. Must be a StateFieldPathExpression.
If I define the field Id with an
#ORM\Column(name="id_perfiles", type="integer")
Then I'm able to build DQL's with the entity, but the relationship won't work anymore.
I'm lost around here... It seems I'm missing something in the relationship definition, but have no clue.
Thanks in advance for any tip.
EDIT
If I use:
$entities=$em->getRepository('usuariosBundle:IPerfil')->findAll(array());
It doen'st gives an error, but I need to filter and order the results.
$entities=$em->getRepository('usuariosBundle:IPerfil')->findBy(array(),array('id' => 'asc', 'descripcion' => 'asc'));
Unrecognized field: id
$query=$em->getRepository('usuariosBundle:IPerfil')->createQueryBuilder('p')
->orderBy('id', 'ASC')
->getQuery();
$entities = $query->getResult();
*[Semantical Error] line 0, col 60 near 'id ASC': Error: 'id' is not defined. *
$entities = $this->get('doctrine')->getEntityManager()->createQuery('SELECT p.id FROM usuariosBundle:IPerfil p ')->getResult();
[Semantical Error] line 0, col 9 near 'id FROM usuariosBundle:IPerfil': Error: Invalid PathExpression. Must be a StateFieldPathExpression.

Answer 1

Use attribute name of class, no column name on dql => 'id'
->orderBy('p.id', 'ASC') and ->createQuery('SELECT p FROM usuariosBundle:IPerfil p ')->getResult(), the name of bundle is usuarios os Usuarios ?

Answer 2

If it is useful to anyone, I finally created a non-persistent attribute in the Perfil entity to attach the the relationship and a collection of IPerfil's there:
/**
* #ORM\OneToMany(targetEntity="IPerfil", mappedBy="id")
*/
private $desc;
Need to declare it as a ArrayCollection:
public function __construct()
{
$this->desc = new \Doctrine\Common\Collections\ArrayCollection();
}
And now I'm able to lazy load in the right direction and do any necessary operation. I suppouse Doctrine couldnt load the collection into id, as it wasn't declared as a collection and it's the ID field.