How to return object from a DQL query?

问题

I have written a DQL query in Doctrine 2:

$qb->select('r.position')
    ->from('\Entities\Races', 'r')
    ->where($qb->expr()->eq('r.entrantId', ':entrant_id'))
    ->setParameter('entrant_id', $this->entrantId);
$query = $qb->getQuery();
$aRaces = $query->getResult();

Currently it returns the results of the query in an array like so:

Array
(
    [0] => Array
        (
            [position] => 10
        )

    [1] => Array
        (
            [position] => 4
        )
)

I want the result to return an array of Races objects so that I can access the methods associated with the object (I'm pretty sure the previous version of Doctrine returned objects by default).

I tried:

$aRaces = $query->getResult(Query::HYDRATE_OBJECT);

But that didn't make a difference.

Appreciate the help

回答1:

You are fetching only position column from DB. Try replacing select('r.position') with select(r). See DQL reference

If you need objects with only position attribute, refer to partial objects

回答2:

The: $qb->getResult(\Doctrine\ORM\Query::HYDRATE_OBJECT);

Return an array with object and you can catch them with: $match[0];

If you want to return a single result you must be use: $qb->getOneOrNullResult()

回答3:

I could not solve my problem with your solution, here my part of code:

$qb = $this->_objectManager->createQuery('Select d from Hotbed\Entity\Department d where d.id <> :id and d.title = :title');
        $qb->setParameters(array('id' => $context['id'], 'title' => $value));
        $match = $qb->getResult(\Doctrine\ORM\Query::HYDRATE_OBJECT);

$match returns this:

array(1) {
 [0] => object(Hotbed\Entity\Department)#626 (4) {
   ['inputFilter':protected] =&gt; NULL
   ['id':protected] =&gt; int(25)
   ['title':protected] => string(4) '2222'
   ['state':protected] => int(0)
 }
}

thx for any help

来源：https://stackoverflow.com/questions/7063926/how-to-return-object-from-a-dql-query

标签

php

doctrine-orm

dql