Symfony v6.3中的弃用：将“App\DQL\TablePrefixSubscriber”注册为Doctrine订阅者已弃用

简介

通过Doctrine官方方法和StackOverflow answer的方法，在数据库中使用了一个表前缀。

问题

升级到Symfony v6.3后，有了新的弃用：
用户弃用：由于symfony/doctrine-bridge 6.3：不建议将“App\DQL\TablePrefixSubscriber”注册为Doctrine订阅者。请使用#[AsDoctrineSubscribe]属性将其注册为侦听器。

代码

services.yaml的相关部分

parameters:
    app.db_table_prefix: abc_

services:
    app.tbl_prefix_subscriber:
        class: App\DQL\TablePrefixSubscriber
        arguments: [%app.db_table_prefix%]
        tags:
            - { name: doctrine.event_subscriber }

我现在的TablePrefixSubscriber

<?php

namespace App\DQL;

use Doctrine\ORM\Event\LoadClassMetadataEventArgs;
use Doctrine\Common\EventSubscriber as EventSubscriber;
use Doctrine\ORM\Mapping\ClassMetadataInfo as ClassMetadataInfo;

class TablePrefixSubscriberNew implements EventSubscriber
{
    protected string $prefix = '';

    public function __construct(string $prefix)
    {
        $this->prefix = $prefix;
    }

    public function getSubscribedEvents(): array
    {
        return array('loadClassMetadata');
    }

    public function loadClassMetadata(LoadClassMetadataEventArgs $eventArgs): void
    {
        $classMetadata = $eventArgs->getClassMetadata();

        if (!$classMetadata->isInheritanceTypeSingleTable() || $classMetadata->getName() === $classMetadata->rootEntityName) {
            $classMetadata->setPrimaryTable([
                'name' => $this->prefix . $classMetadata->getTableName()
            ]);
        }

        foreach ($classMetadata->getAssociationMappings() as $fieldName => $mapping) {
            if ($mapping['type'] === ClassMetadataInfo::MANY_TO_MANY && $mapping['isOwningSide']) {
                $mappedTableName = $mapping['joinTable']['name'];
                $classMetadata->associationMappings[$fieldName]['joinTable']['name'] = $this->prefix . $mappedTableName;
            }
        }
    }
}