MongoDB ODM deserialisation issues

[vershart]

Hi!

I have tried to setup this adapter in a legacy app. When I am executing MongoDB ODM queries in the setup with the mongo-php-adapter, I have the error below returned by Doctrine for the following snippets:

$result = $this
            ->createQueryBuilder()
            ->field('someId')->equals(new MongoId($dto->getId()))
            ->hydrate(true)
            ->field('someField')->notEqual(true)
            ->getQuery()
            ->execute();

die(json_decode($result)); // As an example, originally the function returned the query builder ( \Doctrine\MongoDB\Query\Builder), which was then passed to Knp paginator

Error: Cannot use object of type MyBundle\Document\SomeDocument as array
    at n/a
        in /var/www/vendor/doctrine/mongodb-odm/lib/Doctrine/ODM/MongoDB/UnitOfWork.php line 2687

The code fragment that returns with Symfony Stack Trace is as follows:

in vendor/doctrine/mongodb-odm/lib/Doctrine/ODM/MongoDB/UnitOfWork.php at line 268
        $isManagedObject = false;
        if (! $class->isQueryResultDocument) {
            $id = $class->getDatabaseIdentifierValue($data['_id']);
            $serializedId = serialize($id);
            $isManagedObject = isset($this->identityMap[$class->name][$serializedId]);
        }

No other useful information was provided.

Now having the following configuration:

• PHP 5.6.40
• ext-mongodb 1.7.5
• Version of the adapter installed: 1.2.5
• The ext-mongo is not installed
• MongoDB 4.4

composer.json related libraries:

        "alcaeus/mongo-php-adapter": "1.2.5",
        "doctrine/annotations": "v1.2.7",
        "doctrine/cache": "v1.4.2",
        "doctrine/collections": "v1.3.0",
        "doctrine/common": "v2.4.3",
        "doctrine/data-fixtures": "v1.1.1",
        "doctrine/dbal": "2.5.13",
        "doctrine/doctrine-bundle": "1.6.13",
        "doctrine/doctrine-cache-bundle": "1.3.0",
        "doctrine/doctrine-fixtures-bundle": "v2.4.1",
        "doctrine/inflector": "v1.0.1",
        "doctrine/instantiator": "1.0.5",
        "doctrine/lexer": "v1.0.1",
        "doctrine/mongodb": "1.6.4",
        "doctrine/mongodb-odm": "1.2.11",
        "doctrine/mongodb-odm-bundle": "3.4.4",
        "doctrine/orm": "v2.4.8",
        "mongodb/mongodb": "1.0.1",

PHP 5.6 sounds a bit of bad manners in 2024, I know.

Currently, there is a mix of Doctrine ODM usages and MongoDB driver usages. We are trying to move from the Mongo 3.4 to the latest version possible (it seems to be mostly compatible with MongoDB 4.4) to start decoupling and splitting our big legacy app and shutting it down.

I will be glad for any help or advice, thank you in advance!