Symfony2 - Find by a parent property object - symfony

Question

I understood how Query Builder works but I am trying to use the ORM correctly.
I have two entities: Days and Tasks
The Tasks entity is linked to the Day Entity with a ManyToOne association.
Tasks.orm.yml
DJU\ MyBundle\ Entity\ Tasks:
type: entity
table: null
repositoryClass: DJU\ MyBundle\ Entity\ TasksRepository
id:
id:
type: integer
id: true
generator:
strategy: AUTO
fields:
description:
type: text
manyToOne:
days:
targetEntity: Days
inversedBy: tasks
joinColumn:
name: days_id
referencedColumnName: id
Tasks.php
class Tasks {
/**
* Get temps
*
* #return \CIT\CalendarBundle\Entity\Temps
*/
public function getTemps()
{
return $this->temps;
}
}
Here is my controller:
class DefaultController extends Controller
{
public function example2CalAction() {
$em = $this->getDoctrine()->getManager();
$tasks = $em->getRepository('DJUMyBundle:Tasks')->findAll();
foreach($tasks as $onetask) {
if ( $onetask->getDays()->getId() == '1' ) {
$myt = $onetask->getDays();
}
}
return $this->render('DJUMyBundle:Default:sample2.html.twig', array('tasks' => $myt));
}
}
As you can see my request has poor performance. I would like to find Tasks by Days id. How can I do?
Thank you

Answer 1

Repositories are your solution.
class TasksRepository {
public function findByDay(Day $day)
{
$q = $this
->createQueryBuilder('t')
->select('t')
->leftJoin('t.days', 'd')
->where("d.id = :dayId")
->setParameter('dayId', $dayId)
->getQuery();
$result = $q->getResult();
return $result;
}
}
Find your tasks for day 1 using:
$day = $em->getRepository('DJUMyBundle:Day')->find(1);
$tasks = $em->getRepository('DJUMyBundle:Tasks')->findByDay($day);