Doctrine ODM / PHP / MongoDB - Impossible requête éléments de référence

Question

J'ai un événement, qui a un privilège et cette références Privilège d'un utilisateur. Je suis en train de faire tous les événements associés à un utilisateur, mais je ne peux pas sembler obtenir la doctrine de travail que je voudrais.

Voici mon schéma Mongo

Array
(
    [_id] => 4e63903cbc3470a2cd000002
    [date] => 2011-10-09
    [name] => Event1
    [privileges] => Array
        (
            [0] => Array
                (
                    [user] => Array
                        (
                            [$ref] => users
                            [$id] => 4e63611cbc347053a2000001
                            [$db] => eventdb
                        )

                    [role] => admin
                )

        )

    [url] => Event1
)

La doctrine de l'événement Entité:

class Event {

    /**
     * @Id
     */
    protected $id;

    /**
     * @String
     */
    protected $name;

    /**
     * @EmbedMany(targetDocument="\Event\Privilege")
     */
    protected $privileges = array();
}

Le privilège d'entité:

class Privilege {

    /**
     * @ReferenceOne(targetDocument="\User", cascade={"persist"})
     */
    protected $user;

    /**
     * @String
     */
    protected $role;
}

Et l'entité utilisateur:

class User {

    /**
     * @Id
     */
    protected $id;

    /**
     * @String
     */
    private $firstname;

    /**
     * @String
     */
    private $lastname;

    /**
     * @String
     */
    protected $username;
}

J'ai essayé ce qui suit sans succès

Example 1:
    $privilege_repository = $dm->getRepository('\Event\Privilege');
    $qb1 = $privilege_repository->createQueryBuilder('\Event\Privilege') ->field('user.$id')->equals('4e63611cbc347053a2000001');
    $query1 = $qb1->getQuery();
    $result1 = $query1->execute();
    $result1->count() :0
    Example 2:
    $privilege_repository = $dm->getRepository('\Event\Privilege');
    $qb2 = $privilege_repository->createQueryBuilder('\Event\Privilege') ->field('user.$id')->equals(new \MongoId('4e63611cbc347053a2000001'));
    $query2 = $qb2->getQuery();
    $result2 = $query2->execute();
    $result2->count() :0
    Example 3:
    $privilege_repository = $dm->getRepository('\Event\Privilege');
    $qb3 = $privilege_repository->createQueryBuilder('\Event\Privilege') ->field('user')->equals(new \MongoId('4e63611cbc347053a2000001'));
    $query3 = $qb3->getQuery();
    $result3 = $query2->execute();
    $result3->count() :0

J'ai aussi essayé d'utiliser la classe de l'événement, mais il ne reçoit pas plus de succès ... Je manque sûrement quelque chose, mais je n'ai pas la moindre idée quoi! Toute aide est la bienvenue.

Merci.

Answer 1

** One night later ** Finally got it working!

Example 2:
$privilege_repository = $dm->getRepository('\Event');
$qb2 = $privilege_repository->createQueryBuilder('\Event') ->field('privileges.user.$id')->equals(new \MongoId('4e63611cbc347053a2000001'));
$query2 = $qb2->getQuery();
$result2 = $query2->execute();
$result2->count() :3

You really need to use the new MongoId() otherwise it always returns empty!

Answer 2

you can try this:

$user = ... The User Document with _id 4e63611cbc347053a2000001 ...
$dm = $this->getDocumentManager();
$queryBuilder = $dm->createQueryBuilder('\Event')->field('privileges.user')->references($user)

strangely it's not documented here http://doctrine-mongodb-odm.readthedocs.org/en/latest/reference/query-builder-api.html, but worked for me.

Answer 3

What the result of user.id?

$qb2 = $privilege_repository->createQueryBuilder('\Event\Privilege') ->field('user.id')->equals(new \MongoId('4e63611cbc347053a2000001'));

Answer 4

quick note while the method works you won't be using an index when using the .$id reference.

It is best to use the db reference.

$privilege_repository = $dm->getRepository('\Event');
$qb2 = $privilege_repository->createQueryBuilder('\Event') ->field('privileges.user')->equals( \MongoDBRef::create("user", new \MongoId('4e63611cbc347053a2000001'),'database_name') );
$query2 = $qb2->getQuery();
$result2 = $query2->execute();
 $result2->count() :3

I assumed user is the name of the collection above and database_name as database name. You can also create the index by :

db.collection.ensureIndex({'privileges.user':1};

When you have very large collections with multiple shards and replica sets the index will come in handy.