doctrine select in new object - php

Question

I'm trying to select multiples objects in a single array result, but i cant see how to select it ...
Well actually I have this DQL:
$dql = ' SELECT obj AS Object1, objExternalRef AS Object2 FROM MyEntity1 AS obj
INNER JOIN obj.objChild AS objChild
INNER JOIN MyEntity2 AS objExternalRef WITH objExternalRef.objChild= objChild
WHERE something
';
$result = $em->createQuery($dql)
->setParameter( ... )
->setHint(\Doctrine\ORM\Query::HINT_FORCE_PARTIAL_LOAD, 1)
->getResult();
returning this array[ Object1 , Object2, Object1, Object2, ... ]:
{
"Object1": {...}
},
{
"Object2": { ...}
},
And i would like to encapsule this in a new object containing theses 2 objects like:
{
"Object1" : { ... },
"Object2" : { ... }
},
{
"Object1" : { ... },
"Object2" : { ... }
},
I think I need to make a select of this select(query) to group theses 2 object in a new object, but i can't figure out how to make it.
I also know that if i just make a for($i = 0; i < sizeof($result); i += 2) i can concat these 2 objs in a new one, but I don't think this is so far a nice fix.
Can someone give-me a light here?

Answer 1

If these two objects are related good practice will be to define this association mapping ie one to many or many to one in your entity relationship. For example
In country entity/object --(of course also defined on state side)
/**
* #ORM\OneToMany(targetEntity="State", mappedBy="stateCountry")
*/
private $states;
You can simply do a
$country->getStates()
See Doctrine Association mapping for more
However if they are not and you want mixed results you will need to use result set mapping/scalar results. I usually use native queries for something like this. For example
$rsm = new ResultSetMapping();
$rsm->addScalarResult('name', 'name');
$rsm->addScalarResult('id', 'id');
$rsm->addScalarResult('slug', 'slug');
$rsm->addScalarResult('num', 'num');
$sql = "SELECT f.name, f.id, f.slug, COUNT( t.demo_id ) AS num FROM tag_demos t LEFT JOIN tag f ON f.id = t.tag_id " .
" GROUP BY t.tag_id ORDER BY COUNT( t.demo_id ) DESC LIMIT 20";
$query = $this->getEntityManager()->createNativeQuery($sql, $rsm);
return $query->getResult();
See Native Query-Result Set Mapping for more examples.