How to make data fixtures work ?

[Alexandre-Fernandez]

How can I make fixtures work ? I have doctrine/mongodb-odm-bundle and doctrine/data-fixtures installed. When I run php bin/console doctrine:mongodb:fixtures:load, I get an error :

Doctrine\ODM\MongoDB\Persisters\DocumentPersister::prepareFieldName(): Argument #1 ($fieldName) must be of type string, int given, called in /shared/httpd/app/app/vendor/doctrine/mongodb-odm/lib/Doctrine/ODM/MongoDB/SchemaManager.php on line 245

This is my fixture file :

namespace App\DataFixtures;

use App\Document\User;
use Doctrine\Bundle\MongoDBBundle\Fixture\FixtureGroupInterface;
use Doctrine\Bundle\MongoDBBundle\Fixture\ODMFixtureInterface;
use Doctrine\Persistence\ObjectManager;

class AppFixtures implements ODMFixtureInterface, FixtureGroupInterface
{
    public function load(ObjectManager $manager): void
    {
    }

    public static function getGroups(): array
    {
        return ["dev", "prod"];
    }
}

The symfony's documentation says to check the DoctrineMongoDBBundle's documentation and the DoctrineMongoDBBundle's documentation says to check the symfony one...

https://symfony.com/bundles/DoctrineFixturesBundle/current/index.html

This bundle is compatible with any database supported by Doctrine ORM (MySQL, PostgreSQL, SQLite, etc.). If you are using MongoDB, you must use DoctrineMongoDBBundle instead.

https://www.doctrine-project.org/projects/doctrine-mongodb-bundle/en/current/console.html

To be able to load data fixtures into MongoDB, you will need to have the DoctrineFixturesBundle bundle installed. To learn how to do it, read the `DoctrineFixturesBundle` entry of the documentation.

[GromNaN]

Which version of the doctrine packages are you using?

[Alexandre-Fernandez]

		"doctrine/data-fixtures": "^1.7",
		"doctrine/mongodb-odm-bundle": "^5.0",

[Alexandre-Fernandez]

I have the same error when running php bin/console doctrine:mongodb:schema:create, so the issue may not only be related to fixtures.

Doctrine\ODM\MongoDB\Persisters\DocumentPersister::prepareFieldName(): Argument #1 ($fieldName) must be of type string, int given, called in /shared/httpd/app/app/vendor/doctrine/mongodb-odm/lib/Doctrine/ODM/MongoDB/SchemaManager.php on line 245

[Alexandre-Fernandez]

The error was caused by the following attribute in the User class :
#[MongoDB\UniqueIndex(name: "UNIQ_IDENTIFIER_EMAIL", keys: ["email"])]