我不喜欢启动答案,所以我深入研究了学说代码,看看是否能找到与 symfony 依赖注入系统更集成的解决方案。
这是我带来的:
配置/服务.yaml
我重写了连接工厂类和一个接口来标记我需要使用注入的服务。
parameters:
doctrine.dbal.connection_factory.class: App\Doctrine\Bundle\ConnectionFactory
services:
_instanceof:
App\Doctrine\DBAL\Types\ServiceTypeInterface:
tags: [ app.doctrine.dbal.service_type ]
配置/包
标准的自定义类型声明,没什么特别的。
doctrine:
dbal:
url: '%env(resolve:DATABASE_URL)%'
types:
my_type: App\Doctrine\DBAL\Types\MyTypeNeedingDependencyInjection
orm:
auto_generate_proxy_classes: true
naming_strategy: doctrine.orm.naming_strategy.underscore_number_aware
auto_mapping: true
mappings:
App:
is_bundle: false
type: annotation
dir: '%kernel.project_dir%/src/Entity'
prefix: 'App\Entity'
alias: App
src/内核.php
编译器传递将类型注册到连接工厂。您也可以使用单独的编译器传递。
<?php
namespace App;
// Standard Kernel use plus those
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Reference;
class Kernel extends BaseKernel implements CompilerPassInterface
{
use MicroKernelTrait;
public function process(ContainerBuilder $container)
{
$definition = $container->getDefinition(Breadcrumb::class);
$tag = 'app.breadcrumb.title_provider';
foreach ($this->findAndSortTaggedServices($tag, $container) as $ref) {
$definition->addMethodCall('addTitleProvider', [$ref]);
}
$definition = $container->getDefinition('doctrine.dbal.connection_factory');
foreach ($container->findTaggedServiceIds('app.doctrine.dbal.service_type') as $id => $_) {
$definition->addMethodCall('registerServiceType', [new Reference($id)]);
}
}
// Standard Kernel code goes there
}
我检查是否有与类型类对应的服务,如果有,我通过类型注册表使用该服务,而不是注册类名。
src/Doctrine/Bundle/ConnectionFactory.php
<?php
namespace App\Doctrine\Bundle;
use App\Doctrine\DBAL\Types\ServiceTypeInterface;
use Doctrine\Bundle\DoctrineBundle\ConnectionFactory as BaseFactory;
use Doctrine\Common\EventManager;
use Doctrine\DBAL\Configuration;
use Doctrine\DBAL\Types\Type;
class ConnectionFactory extends BaseFactory
{
protected $serviceTypes;
public function registerServiceType(ServiceTypeInterface $serviceType)
{
$this->serviceTypes[get_class($serviceType)] = $serviceType;
}
public function createConnection(
array $params,
Configuration $config = null,
EventManager $eventManager = null,
array $mappingTypes = []
)
{
$reflect = new \ReflectionProperty(BaseFactory::class, 'initialized');
$reflect->setAccessible(true);
if (!$reflect->getValue($this)) {
$typesReflect = new \ReflectionProperty(BaseFactory::class, 'typesConfig');
$typesReflect->setAccessible(true);
foreach ($typesReflect->getValue($this) as $typeName => $typeConfig) {
if (is_a($typeConfig['class'], ServiceTypeInterface::class, true)) {
$registry = Type::getTypeRegistry();
if ($registry->has($typeName)) {
$registry->override($typeName, $this->serviceTypes[$typeConfig['class']]);
}
else {
$registry->register($typeName, $this->serviceTypes[$typeConfig['class']]);
}
}
elseif (Type::hasType($typeName)) {
Type::overrideType($typeName, $typeConfig['class']);
}
else {
Type::addType($typeName, $typeConfig['class']);
}
}
$reflect->setValue($this, true);
}
return parent::createConnection($params, $config, $eventManager, $mappingTypes);
}
}
src/App/Doctrine/DBAL/Types/ServiceTypeInterface.php
<?php
namespace App\Doctrine\DBAL\Types;
interface ServiceTypeInterface
{
}
src/Doctrine/DBAL/Types/MyTypeNeedingDependencyInjection.php
<?php
namespace App\Doctrine\DBAL\Types;
use App\Service\MyService;
use Doctrine\DBAL\Types\Type;
use Doctrine\DBAL\Platforms\AbstractPlatform;
class MyTypeNeedingDependencyInjection extends Type implements ServiceTypeInterface
{
protected $myService;
/**
* We have to use setter injection since parent Type class make the constructor final
* @required
*/
public function setService(MyService $myService)
{
$this->myService = $myService;
}
public function getSQLDeclaration(array $column, AbstractPlatform $platform)
{
return $platform->getVarcharTypeDeclarationSQL($column);
}
public function getDefaultLength(AbstractPlatform $platform)
{
return 16;
}
public function convertToPHPValue($value, AbstractPlatform $platform)
{
return $this->myService->toPHP($value);
}
public function convertToDatabaseValue($value, AbstractPlatform $platform)
{
return $this->myService->fromPHP($value);
}
public function getName()
{
return 'my_type';
}
}
评论
这工作得很好(symfony 5.1,教义 2.7),至少对于我需要的用法,我可以用最少的努力添加更多类型(只需要实现 ServiceTypeInterface 并使用 setter 注入),但请注意,这使用内部教义功能,通过反射和使用注释为内部的函数,因此没有向前兼容的版本。