Doctrine query builder - any of joined elements - mysql

Question

I have the following entities (simplified):
a work is composed of multiple tasks. Each task has a field storing the time it should be due and a field storing the time it has been completed.
/**
* Work
*
* #ORM\Entity
*/
class Work
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #ORM\OneToMany(targetEntity="Task", mappedBy="work", cascade={"persist", "remove"})
* #ORM\JoinColumn(name="task_work_id", referencedColumnName="id")
*/
protected $task;
/**
* Constructor
*/
public function __construct()
{
$this->task = new ArrayCollection();
}
}
/**
* Task
*
* #ORM\Entity
*/
class Task
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #ORM\ManyToOne(targetEntity="Work", inversedBy="task")
* #ORM\JoinColumn(name="work_id", referencedColumnName="id")
*/
private $work;
/**
* #var \DateTime
*
* #ORM\Column(name="completed", type="datetime", nullable=true)
*/
private $completed;
/**
* #var \DateTime
*
* #ORM\Column(name="duedate", type="datetime", nullable=true)
*/
private $duedate;
}
I am trying to build a query to retrieve all works that have uncompleted overdue tasks.
I initially thought something like this:
$repository = $this->getEntityManager()
->getRepository('MyBundle:Work');
$query = $repository->createQueryBuilder('v');
$query->leftJoin('v.task', 't');
$query->andWhere(
$query->expr()->isNull('t.completed')
)
->andWhere(
$query->expr()->gte('t.duedate', ':now')
)
;
$query->setParameter('now', new \DateTime(), \Doctrine\DBAL\Types\Type::DATETIME);
However, this retrieves works whose all tasks are overdue (I think).
So I tried with a sub-query:
$repository = $this->getEntityManager()
->getRepository('MyBundle:Work');
$query = $repository->createQueryBuilder('v');
$query2 = $this->getEntityManager()
->createQueryBuilder();
$query2->select('t')
->from('v.task', 't');
$query2->andWhere(
$query->expr()->isNull('t.completed')
)
->andWhere(
$query->expr()->gte('t.duedate', ':now')
)
;
$query2->setParameter('now', new \DateTime(), \Doctrine\DBAL\Types\Type::DATETIME);
$query->andWhere(
$query->expr()->any(
$query2->getDql()
)
);
But I get the following error:
QueryException: [Syntax Error] line 0, col 104: Error: Expected known function, got 'ANY'
Any idea on how I could write the query?
Thank you in advance!

Answer 1

You have not defined a repository for $query2