获得一个服务，应该在持久化对象的那一刻执行。虽然，我认为代码看起来应该可行，但事实并非如此。我将服务配置为以下yml。
services:
bla_orm.listener:
class: Bla\OrmBundle\EventListener\UserManager
arguments: [@security.encoder_factory]
tags:
- { name: doctrine.event_listener, event: prePersist }
班级：
namespace Bla\OrmBundle\EventListener;
use Doctrine\ORM\Event\LifecycleEventArgs;
use Bla\OrmBundle\Entity\User;
class UserManager {
protected $encoderFactory;
public function __construct(\Symfony\Component\Security\Core\Encoder\EncoderFactoryInterface $encoderFactory) {
$this->encoderFactory = $encoderFactory;
}
public function prePersist(LifecycleEventArgs $args) {
$entity = $args->getEntity();
if ($entity instanceof User) {
$encoder = $this->encoderFactory ->getEncoder($entity);
$entity->setSalt(rand(10000, 99999));
$password = $encoder->encodePassword($entity->getPassword(), $entity->getSalt());
$entity->setPassword($password);
}
}
}
Symfony版本：
Symfony version 2.3.3 - app/dev/debug
container:debug
[container] Public services
Service Id Scope Class Name
annotation_reader container Doctrine\Common\Annotations\FileCacheReader
assetic.asset_manager container Assetic\Factory\LazyAssetManager
assetic.controller prototype Symfony\Bundle\AsseticBundle\Controller\AsseticController
assetic.filter.cssrewrite container Assetic\Filter\CssRewriteFilter
assetic.filter_manager container Symfony\Bundle\AsseticBundle\FilterManager
assetic.request_listener container Symfony\Bundle\AsseticBundle\EventListener\RequestListener
cache_clearer container Symfony\Component\HttpKernel\CacheClearer\ChainCacheClearer
cache_warmer container Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerAggregate
data_collector.request container Symfony\Component\HttpKernel\DataCollector\RequestDataCollector
data_collector.router container Symfony\Bundle\FrameworkBundle\DataCollector\RouterDataCollector
database_connection n/a alias for doctrine.dbal.default_connection
debug.controller_resolver container Symfony\Component\HttpKernel\Controller\TraceableControllerResolver
debug.deprecation_logger_listener container Symfony\Component\HttpKernel\EventListener\ErrorsLoggerListener
debug.emergency_logger_listener container Symfony\Component\HttpKernel\EventListener\ErrorsLoggerListener
debug.event_dispatcher container Symfony\Component\HttpKernel\Debug\TraceableEventDispatcher
debug.stopwatch container Symfony\Component\Stopwatch\Stopwatch
debug.templating.engine.php container Symfony\Bundle\FrameworkBundle\Templating\TimedPhpEngine
debug.templating.engine.twig n/a alias for templating
doctrine container Doctrine\Bundle\DoctrineBundle\Registry
doctrine.dbal.connection_factory container Doctrine\Bundle\DoctrineBundle\ConnectionFactory
doctrine.dbal.default_connection container stdClass
doctrine.orm.default_entity_manager container Doctrine\ORM\EntityManager
doctrine.orm.default_manager_configurator container Doctrine\Bundle\DoctrineBundle\ManagerConfigurator
doctrine.orm.entity_manager n/a alias for doctrine.orm.default_entity_manager
doctrine.orm.validator.unique container Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntityValidator
doctrine.orm.validator_initializer container Symfony\Bridge\Doctrine\Validator\DoctrineInitializer
event_dispatcher container Symfony\Component\EventDispatcher\ContainerAwareEventDispatcher
file_locator container Symfony\Component\HttpKernel\Config\FileLocator
filesystem container Symfony\Component\Filesystem\Filesystem
form.csrf_provider container Symfony\Component\Form\Extension\Csrf\CsrfProvider\SessionCsrfProvider
form.factory container Symfony\Component\Form\FormFactory
form.registry container Symfony\Component\Form\FormRegistry
form.resolved_type_factory container Symfony\Component\Form\ResolvedFormTypeFactory
form.type.birthday container Symfony\Component\Form\Extension\Core\Type\BirthdayType
form.type.button container Symfony\Component\Form\Extension\Core\Type\ButtonType
form.type.checkbox container Symfony\Component\Form\Extension\Core\Type\CheckboxType
form.type.choice container Symfony\Component\Form\Extension\Core\Type\ChoiceType
form.type.collection container Symfony\Component\Form\Extension\Core\Type\CollectionType
form.type.country container Symfony\Component\Form\Extension\Core\Type\CountryType
form.type.currency container Symfony\Component\Form\Extension\Core\Type\CurrencyType
form.type.date container Symfony\Component\Form\Extension\Core\Type\DateType
form.type.datetime container Symfony\Component\Form\Extension\Core\Type\DateTimeType
form.type.email container Symfony\Component\Form\Extension\Core\Type\EmailType
form.type.entity container Symfony\Bridge\Doctrine\Form\Type\EntityType
form.type.file container Symfony\Component\Form\Extension\Core\Type\FileType
form.type.form container Symfony\Component\Form\Extension\Core\Type\FormType
form.type.hidden container Symfony\Component\Form\Extension\Core\Type\HiddenType
form.type.integer container Symfony\Component\Form\Extension\Core\Type\IntegerType
form.type.language container Symfony\Component\Form\Extension\Core\Type\LanguageType
form.type.locale container Symfony\Component\Form\Extension\Core\Type\LocaleType
form.type.money container Symfony\Component\Form\Extension\Core\Type\MoneyType
form.type.number container Symfony\Component\Form\Extension\Core\Type\NumberType
form.type.password container Symfony\Component\Form\Extension\Core\Type\PasswordType
form.type.percent container Symfony\Component\Form\Extension\Core\Type\PercentType
form.type.radio container Symfony\Component\Form\Extension\Core\Type\RadioType
form.type.repeated container Symfony\Component\Form\Extension\Core\Type\RepeatedType
form.type.reset container Symfony\Component\Form\Extension\Core\Type\ResetType
form.type.search container Symfony\Component\Form\Extension\Core\Type\SearchType
form.type.submit container Symfony\Component\Form\Extension\Core\Type\SubmitType
form.type.text container Symfony\Component\Form\Extension\Core\Type\TextType
form.type.textarea container Symfony\Component\Form\Extension\Core\Type\TextareaType
form.type.time container Symfony\Component\Form\Extension\Core\Type\TimeType
form.type.timezone container Symfony\Component\Form\Extension\Core\Type\TimezoneType
form.type.url container Symfony\Component\Form\Extension\Core\Type\UrlType
form.type_extension.csrf container Symfony\Component\Form\Extension\Csrf\Type\FormTypeCsrfExtension
form.type_extension.form.http_foundation container Symfony\Component\Form\Extension\HttpFoundation\Type\FormTypeHttpFoundationExtension
form.type_extension.form.validator container Symfony\Component\Form\Extension\Validator\Type\FormTypeValidatorExtension
form.type_extension.repeated.validator container Symfony\Component\Form\Extension\Validator\Type\RepeatedTypeValidatorExtension
form.type_extension.submit.validator container Symfony\Component\Form\Extension\Validator\Type\SubmitTypeValidatorExtension
form.type_guesser.doctrine container Symfony\Bridge\Doctrine\Form\DoctrineOrmTypeGuesser
form.type_guesser.validator container Symfony\Component\Form\Extension\Validator\ValidatorTypeGuesser
fragment.handler container Symfony\Component\HttpKernel\Fragment\FragmentHandler
fragment.listener container Symfony\Component\HttpKernel\EventListener\FragmentListener
fragment.renderer.hinclude container Symfony\Bundle\FrameworkBundle\Fragment\ContainerAwareHIncludeFragmentRenderer
fragment.renderer.inline container Symfony\Component\HttpKernel\Fragment\InlineFragmentRenderer
http_kernel container Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel
kernel container
locale_listener container Symfony\Component\HttpKernel\EventListener\LocaleListener
logger container Symfony\Bridge\Monolog\Logger
mailer n/a alias for swiftmailer.mailer.default
monolog.handler.chromephp container Symfony\Bridge\Monolog\Handler\ChromePhpHandler
monolog.handler.debug container Symfony\Bridge\Monolog\Handler\DebugHandler
monolog.handler.firephp container Symfony\Bridge\Monolog\Handler\FirePHPHandler
monolog.handler.main container Monolog\Handler\StreamHandler
monolog.logger.deprecation container Symfony\Bridge\Monolog\Logger
monolog.logger.doctrine container Symfony\Bridge\Monolog\Logger
monolog.logger.emergency container Symfony\Bridge\Monolog\Logger
monolog.logger.event container Symfony\Bridge\Monolog\Logger
monolog.logger.profiler container Symfony\Bridge\Monolog\Logger
monolog.logger.request container Symfony\Bridge\Monolog\Logger
monolog.logger.router container Symfony\Bridge\Monolog\Logger
monolog.logger.security container Symfony\Bridge\Monolog\Logger
monolog.logger.templating container Symfony\Bridge\Monolog\Logger
profiler container Symfony\Component\HttpKernel\Profiler\Profiler
profiler_listener container Symfony\Component\HttpKernel\EventListener\ProfilerListener
property_accessor container Symfony\Component\PropertyAccess\PropertyAccessor
request request
response_listener container Symfony\Component\HttpKernel\EventListener\ResponseListener
router container Symfony\Bundle\FrameworkBundle\Routing\Router
router_listener container Symfony\Component\HttpKernel\EventListener\RouterListener
routing.loader container Symfony\Bundle\FrameworkBundle\Routing\DelegatingLoader
security.context container Symfony\Component\Security\Core\SecurityContext
security.encoder_factory container Symfony\Component\Security\Core\Encoder\EncoderFactory
security.firewall container Symfony\Component\Security\Http\Firewall
security.firewall.map.context.dev container Symfony\Bundle\SecurityBundle\Security\FirewallContext
security.firewall.map.context.login container Symfony\Bundle\SecurityBundle\Security\FirewallContext
security.firewall.map.context.rest container Symfony\Bundle\SecurityBundle\Security\FirewallContext
security.firewall.map.context.secured_area container Symfony\Bundle\SecurityBundle\Security\FirewallContext
security.rememberme.response_listener container Symfony\Component\Security\Http\RememberMe\ResponseListener
security.secure_random container Symfony\Component\Security\Core\Util\SecureRandom
security.validator.user_password container Symfony\Component\Security\Core\Validator\Constraints\UserPasswordValidator
sensio.distribution.webconfigurator n/a alias for sensio_distribution.webconfigurator
sensio_distribution.webconfigurator container Sensio\Bundle\DistributionBundle\Configurator\Configurator
sensio_framework_extra.cache.listener container Sensio\Bundle\FrameworkExtraBundle\EventListener\CacheListener
sensio_framework_extra.controller.listener container Sensio\Bundle\FrameworkExtraBundle\EventListener\ControllerListener
sensio_framework_extra.converter.datetime container Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DateTimeParamConverter
sensio_framework_extra.converter.doctrine.orm container Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter
sensio_framework_extra.converter.listener container Sensio\Bundle\FrameworkExtraBundle\EventListener\ParamConverterListener
sensio_framework_extra.converter.manager container Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterManager
sensio_framework_extra.view.guesser container Sensio\Bundle\FrameworkExtraBundle\Templating\TemplateGuesser
sensio_framework_extra.view.listener container Sensio\Bundle\FrameworkExtraBundle\EventListener\TemplateListener
service_container container
session container Symfony\Component\HttpFoundation\Session\Session
session.handler container Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeFileSessionHandler
session.storage n/a alias for session.storage.native
session.storage.filesystem container Symfony\Component\HttpFoundation\Session\Storage\MockFileSessionStorage
session.storage.native container Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage
session.storage.php_bridge container Symfony\Component\HttpFoundation\Session\Storage\PhpBridgeSessionStorage
session_listener container Symfony\Bundle\FrameworkBundle\EventListener\SessionListener
streamed_response_listener container Symfony\Component\HttpKernel\EventListener\StreamedResponseListener
swiftmailer.email_sender.listener container Symfony\Bundle\SwiftmailerBundle\EventListener\EmailSenderListener
swiftmailer.mailer n/a alias for swiftmailer.mailer.default
swiftmailer.mailer.default container Swift_Mailer
swiftmailer.mailer.default.plugin.messagelogger container Swift_Plugins_MessageLogger
swiftmailer.mailer.default.spool container Swift_FileSpool
swiftmailer.mailer.default.transport container Swift_Transport_SpoolTransport
swiftmailer.mailer.default.transport.real container Swift_Transport_EsmtpTransport
swiftmailer.plugin.messagelogger n/a alias for swiftmailer.mailer.default.plugin.messagelogger
swiftmailer.spool n/a alias for swiftmailer.mailer.default.spool
swiftmailer.transport n/a alias for swiftmailer.mailer.default.transport
swiftmailer.transport.real n/a alias for swiftmailer.mailer.default.transport.real
templating container Symfony\Bundle\TwigBundle\Debug\TimedTwigEngine
templating.asset.package_factory container Symfony\Bundle\FrameworkBundle\Templating\Asset\PackageFactory
templating.filename_parser container Symfony\Bundle\FrameworkBundle\Templating\TemplateFilenameParser
templating.globals container Symfony\Bundle\FrameworkBundle\Templating\GlobalVariables
templating.helper.actions container Symfony\Bundle\FrameworkBundle\Templating\Helper\ActionsHelper
templating.helper.assets request Symfony\Component\Templating\Helper\CoreAssetsHelper
templating.helper.code container Symfony\Bundle\FrameworkBundle\Templating\Helper\CodeHelper
templating.helper.form container Symfony\Bundle\FrameworkBundle\Templating\Helper\FormHelper
templating.helper.logout_url container Symfony\Bundle\SecurityBundle\Templating\Helper\LogoutUrlHelper
templating.helper.request container Symfony\Bundle\FrameworkBundle\Templating\Helper\RequestHelper
templating.helper.router container Symfony\Bundle\FrameworkBundle\Templating\Helper\RouterHelper
templating.helper.security container Symfony\Bundle\SecurityBundle\Templating\Helper\SecurityHelper
templating.helper.session container Symfony\Bundle\FrameworkBundle\Templating\Helper\SessionHelper
templating.helper.slots container Symfony\Component\Templating\Helper\SlotsHelper
templating.helper.translator container Symfony\Bundle\FrameworkBundle\Templating\Helper\TranslatorHelper
templating.loader container Symfony\Bundle\FrameworkBundle\Templating\Loader\FilesystemLoader
templating.name_parser container Symfony\Bundle\FrameworkBundle\Templating\TemplateNameParser
translation.dumper.csv container Symfony\Component\Translation\Dumper\CsvFileDumper
translation.dumper.ini container Symfony\Component\Translation\Dumper\IniFileDumper
translation.dumper.mo container Symfony\Component\Translation\Dumper\MoFileDumper
translation.dumper.php container Symfony\Component\Translation\Dumper\PhpFileDumper
translation.dumper.po container Symfony\Component\Translation\Dumper\PoFileDumper
translation.dumper.qt container Symfony\Component\Translation\Dumper\QtFileDumper
translation.dumper.res container Symfony\Component\Translation\Dumper\IcuResFileDumper
translation.dumper.xliff container Symfony\Component\Translation\Dumper\XliffFileDumper
translation.dumper.yml container Symfony\Component\Translation\Dumper\YamlFileDumper
translation.extractor container Symfony\Component\Translation\Extractor\ChainExtractor
translation.extractor.php container Symfony\Bundle\FrameworkBundle\Translation\PhpExtractor
translation.loader container Symfony\Bundle\FrameworkBundle\Translation\TranslationLoader
translation.loader.csv container Symfony\Component\Translation\Loader\CsvFileLoader
translation.loader.dat container Symfony\Component\Translation\Loader\IcuResFileLoader
translation.loader.ini container Symfony\Component\Translation\Loader\IniFileLoader
translation.loader.mo container Symfony\Component\Translation\Loader\MoFileLoader
translation.loader.php container Symfony\Component\Translation\Loader\PhpFileLoader
translation.loader.po container Symfony\Component\Translation\Loader\PoFileLoader
translation.loader.qt container Symfony\Component\Translation\Loader\QtFileLoader
translation.loader.res container Symfony\Component\Translation\Loader\IcuResFileLoader
translation.loader.xliff container Symfony\Component\Translation\Loader\XliffFileLoader
translation.loader.yml container Symfony\Component\Translation\Loader\YamlFileLoader
translation.writer container Symfony\Component\Translation\Writer\TranslationWriter
translator n/a alias for translator.default
translator.default container Symfony\Bundle\FrameworkBundle\Translation\Translator
twig container Twig_Environment
twig.controller.exception container Symfony\Bundle\TwigBundle\Controller\ExceptionController
twig.exception_listener container Symfony\Component\HttpKernel\EventListener\ExceptionListener
twig.loader container Symfony\Bundle\TwigBundle\Loader\FilesystemLoader
twig.translation.extractor container Symfony\Bridge\Twig\Translation\TwigExtractor
uri_signer container Symfony\Component\HttpKernel\UriSigner
bla_orm.listener container Bla\OrmBundle\EventListener\UserManager
validator container Symfony\Component\Validator\Validator
web_profiler.controller.exception container Symfony\Bundle\WebProfilerBundle\Controller\ExceptionController
web_profiler.controller.profiler container Symfony\Bundle\WebProfilerBundle\Controller\ProfilerController
web_profiler.controller.router container Symfony\Bundle\WebProfilerBundle\Controller\RouterController
web_profiler.debug_toolbar container Symfony\Bundle\WebProfilerBundle\EventListener\WebDebugToolbarListener
更新
当generate:doctrine:crud生成的updateAction发生时，似乎没有调用侦听器。在代码的另一部分，lister似乎被调用。但是，有两种Controller类型，我们$em->persist($something); $em->flush();都可以保存更改。我希望在这两种情况下都可以调用监听器。
答案 0 :(得分：0)
根据您对我的评论的回复，答案是：
doctrine文档中的Lifecycle Events部分指出prePersist仅在插入发生而不是更新时触发。尝试使用相同的方法但同时使用prePersist和preUpdate事件
参考：http://docs.doctrine-project.org/en/latest/reference/events.html#lifecycle-events
答案 1 :(得分：0)
将您的服务更改为：
services:
bla_orm.listener:
class: Bla\OrmBundle\EventListener\UserManager
arguments: [@security.encoder_factory]
tags:
- { name: doctrine.event_listener, event: prePersist }
- { name: doctrine.event_listener, event: preUpdate }
将听众改为：
namespace Bla\OrmBundle\EventListener;
use Doctrine\ORM\Event\LifecycleEventArgs;
use Bla\OrmBundle\Entity\User;
class UserManager {
protected $encoderFactory;
public function __construct(\Symfony\Component\Security\Core\Encoder\EncoderFactoryInterface $encoderFactory) {
$this->encoderFactory = $encoderFactory;
}
public function prePersist(LifecycleEventArgs $args) {
$this->generatePassword($args);
}
public function preUpdate(LifecycleEventArgs $args) {
$this->generatePassword($args);
}
public function generatePassword(LifecycleEventArgs $args) {
$entity = $args->getEntity();
if ($entity instanceof User) {
$encoder = $this->encoderFactory ->getEncoder($entity);
$entity->setSalt(rand(10000, 99999));
$password = $encoder->encodePassword($entity->getPassword(), $entity->getSalt());
$entity->setPassword($password);
}
}
}
您可能需要额外检查，因为我认为您不想在每次更新时更改密码。