如何使用自定义SQLite驱动程序配置Symfony 4？

doctrine:
    dbal:
        driver: pdo_sqlite
        url: '%env(resolve:DATABASE_URL)%'

doctrine:
    orm:
        auto_generate_proxy_classes: true
        naming_strategy: doctrine.orm.naming_strategy.underscore
        auto_mapping: true

<?php

namespace App\Doctrine\DBAL\Driver;

use Doctrine\DBAL\Driver\PDOSqlite\Driver;

class CustomSQLiteDriver extends Driver
{
    /**
     * {@inheritdoc}
     */
    public function getDatabase(PDO $pdo)
    {
        return $pdo->query('PRAGMA database_list')->fetchAll(PDO::FETCH_COLUMN);
    }
}

services:
    doctrine.dbal.custom_sqlite_driver:
        class: App\Doctrine\DBAL\Driver\CustomSQLiteDriver

doctrine:
    dbal:
        driver: pdo_sqlite
        driver_class: App\Doctrine\DBAL\Driver\CustomSQLiteDriver
        url: '%env(resolve:DATABASE_URL)%'