Doctrine Query Builder Result: not looping correctly - php

Question

I'm not sure if it's that I'm not doing correctly but this is giving me an error:
I have 2 Entities: Task and TaskUser. They are connected by a onetoMany.
What I want to do is this:
foreach($tasks as $task){
echo $task->getTitle;
echo $task->getTaskUser()->getFirstName();
}
This is my query in the Task Repository:
public function findTasksByUsers($user = false)
{
if($user){
$qb = $this->_em->createQueryBuilder();
$qb
->select('t', 'tu')
->from('\Entities\Task', 't')
->leftJoin('\Entities\TaskUser', 'tu', \Doctrine\ORM\Query\Expr\Join::WITH, 't.id = tu.task')
->where('tu = :user')
->setParameter('user', $user)
->orderBy('t.createDate', 'DESC');
return $qb->getQuery()->getResult(\Doctrine\ORM\Query::HYDRATE_OBJECT);
}
}
When I do this loop:
$tasks = $this->em->getRepository('\Entities\Task')->findTasksByUsers($user);
foreach($tasks as $task){
echo $task->getTitle();
}
I get the the title of the first task, and then an error like this:
Title of first task
Fatal error: Call to undefined method Entities\TaskUser::getTitle() in D:\sites\db\application\controllers\TasksController.php on line 35
Any idea why this is happening? Thanks!

Answer 1

$qb->select('t', 'tu')
the issue is here as you're selecting both entities.
If you want only Task entity modify your DQL as follows
$qb->select('t')
However, to me, you could only procede that way (in your controller; if you aren't into controller, use DI to access entity manager)
//retrieve all TaskUser object
$em = $this->getDoctrine()->getManager();
$tu_repo = $em->getRepository('YourBundleName:TaskUser');
$tu_array_collection = $tu_repo->findBy(array('user'=>$user));
foreach ($tu_array_collection as $tu) {
$first_name = $tu->getFirstName();
foreach ($tu->getTasks() as $task) {
echo $first_name;
echo $task->getTitle();
}
}
of course you may need to adapt your code with right findBy array, and with correct methods from TaskUser entity