Doctrine ODM/PHP/MongoDB - 无法查询引用元素

Question

我有一个具有权限的事件,此权限引用用户.我正在尝试获取与用户相关的所有事件,但我似乎无法按照我的意愿获得教义.

这是我的Mongo架构

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
)

学说事件实体:

class Event {

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

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

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

特权实体:

class Privilege {

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

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

和用户实体:

class User {

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

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

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

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

我尝试了以下但没有成功

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

我也试过使用Event类,但它没有取得更大的成功......我肯定错过了一些东西,但我不知道是什么!欢迎任何帮助.

谢谢.

Answer 1

**一天晚上**终于搞定了!

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

你真的需要使用新的MongoId(),否则它总是返回空!