{"id":1110,"date":"2025-06-12T13:11:09","date_gmt":"2025-06-12T05:11:09","guid":{"rendered":"https:\/\/www.zhaozhao123.cn\/php\/php-application-manual\/symfony\/1110.html"},"modified":"2025-06-12T13:11:09","modified_gmt":"2025-06-12T05:11:09","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8php-doctrine%e4%b8%ad%e6%b7%bb%e5%8a%a0created_at%e5%92%8cupdated_at%e5%88%97","status":"publish","type":"my1js","link":"https:\/\/www.zhaozhao123.cn\/php\/my1js\/1110.html","title":{"rendered":"\u5982\u4f55\u5728PHP Doctrine\u4e2d\u6dfb\u52a0created_at\u548cupdated_at\u5217"},"content":{"rendered":"
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\"Bug编译狮\"<\/figure>\r\n\r\n\r\n\r\n

Bug编译狮<\/h2>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n
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在使用PHP Doctrine进行数据库操作时，添加created_at<\/code>和updated_at<\/code>列通常是为了跟踪记录的创建时间和更新时间。以下是如何在Doctrine中实现这一功能的步骤：<\/p>\n

1. 安装Doctrine ORM<\/h3>\n

首先，确保你已经安装了Doctrine ORM。如果没有安装，可以使用Composer来安装：<\/p>\n

composer require doctrine\/orm<\/code><\/pre>\n
2. 配置数据库连接<\/h3>\n
在config\/packages\/doctrine.yaml<\/code>文件中配置数据库连接：<\/p>\n
doctrine:\n    dbal:\n        default_connection: default\n        connections:\n            default:\n                url: 'mysql:\/\/username:password@localhost\/dbname'\n                driver: pdo_mysql\n                charset: utf8mb4\n                server_version: '5.7'\n                options:\n                    default_fetch_mode: PDO::FETCH_ASSOC\n    orm:\n        auto_generate_proxy_classes: true\n        naming_strategy: doctrine.orm.naming_strategy.underscore\n        mappings:\n            AppEntity:\n                type: annotation\n                dir: '%kernel.project_dir%\/src\/Entity'\n                prefix: 'AppEntity\\'\n                alias: Entity<\/code><\/pre>\n
3. 创建实体类<\/h3>\n
创建一个新的实体类，并添加created_at<\/code>和updated_at<\/code>属性。<\/p>\n
<?php\n\nnamespace AppEntity;\n\nuse DoctrineORMMapping as ORM;\nuse GedmoMappingAnnotation as Gedmo;\n\n\/**\n * @ORMEntity(repositoryClass=\"AppRepositoryYourEntityRepository\")\n *\/\nclass YourEntity\n{\n    \/**\n     * @ORMId\n     * @ORMGeneratedValue(strategy=\"AUTO\")\n     * @ORMColumn(type=\"integer\")\n     *\/\n    private $id;\n\n    \/**\n     * @ORMColumn(type=\"string\", length=255)\n     *\/\n    private $name;\n\n    \/**\n     * @GedmoTimestampable(on=\"create\")\n     * @ORMColumn(type=\"datetime\")\n     *\/\n    private $createdAt;\n\n    \/**\n     * @GedmoTimestampable(on=\"update\")\n     * @ORMColumn(type=\"datetime\")\n     *\/\n    private $updatedAt;\n\n    \/\/ Getters and Setters\n}<\/code><\/pre>\n
4. 添加自动生成时间戳方法<\/h3>\n
为了简化代码，你可以为实体类添加一些自动生成时间戳的方法。<\/p>\n
<?php\n\nnamespace AppEntity;\n\nuse DoctrineORMMapping as ORM;\nuse GedmoMappingAnnotation as Gedmo;\n\n\/**\n * @ORMEntity(repositoryClass=\"AppRepositoryYourEntityRepository\")\n *\/\nclass YourEntity\n{\n    \/\/ ...\n\n    public function setCreatedAt($createdAt = null)\n    {\n        if (is_null($createdAt)) {\n            $this->createdAt = new DateTime();\n        } else {\n            $this->createdAt = $createdAt;\n        }\n        return $this;\n    }\n\n    public function getCreatedAt()\n    {\n        return $this->createdAt;\n    }\n\n    public function setUpdatedAt($updatedAt = null)\n    {\n        if (is_null($updatedAt)) {\n            $this->updatedAt = new DateTime();\n        } else {\n            $this->updatedAt = $updatedAt;\n        }\n        return $this;\n    }\n\n    public function getUpdatedAt()\n    {\n        return $this->updatedAt;\n    }\n}<\/code><\/pre>\n
5. 运行迁移<\/h3>\n
运行迁移以创建表结构：<\/p>\n
php bin\/console doctrine:migrations:generate\nphp bin\/console doctrine:migrations:migrate<\/code><\/pre>\n
这样，你就成功地在PHP Doctrine中添加了created_at<\/code>和updated_at<\/code>列到你的实体类中。<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>
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黑板Bug讲师<\/h2>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n
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介绍<\/h2>
在现代的Web开发中，跟踪数据库记录的创建和更新时非常有价值的信息。这种元数据允许开发者追踪更改情况，分析随着时间推移的数据，并添加与记录时间相关的功能。对于使用PHP和Doctrine ORM的应用程序来说，添加这些功能可以非常有用。created_at<\/code>和我有什么事情吗？updated_at<\/code>列的添加是一个常见的任务。本教程将指导您以逐步方式向您的Doctrine实体添加此类时间戳列。<\/p>
在开始之前，请确保您已经安装了一个工作状态的PHP环境以及Doctrine ORM。如果您使用的是Symfony，那么Doctrine很可能是标准安装的一部分。<\/p>
设置时间戳列<\/h2>
首先，让我们使用Doctrine注解来定义一个基本实体，以便包括created_at<\/code>and 是中文中的“和”的意思，表示并列或联合的意思。updated_at<\/code>栏目：<\/p>
use DoctrineORMMapping as ORM; \n\/** \n * @ORMEntity \n * @ORMHasLifecycleCallbacks \n *\/ \nclass Article { \n    \/** \n     * @ORMColumn(type=\"datetime\") \n     * @var DateTime \n     *\/ \n    protected $created_at; \n    \/** \n     * @ORMColumn(type=\"datetime\") \n     * @var DateTime \n     *\/ \n    protected $updated_at; \n\n    \/** \n     * @ORMPrePersist \n     *\/ \n    public function onPrePersist() { \n        $this->created_at = new DateTime(\"now\"); \n        if (!$this->updated_at) { \n            $this->updated_at = new DateTime(\"now\"); \n        } \n    } \n\n    \/** \n     * @ORMPreUpdate \n     *\/ \n    public function onPreUpdate() { \n        $this->updated_at = new DateTime(\"now\"); \n    } \n\n    \/\/ ... Other fields and methods \n}\n<\/code><\/pre>
这段代码片段创建了一个新实体。Article<\/code>对不起，我不太明白你的意思，请重新描述一下。created_at<\/code>and 是“并且”的意思。updated_at<\/code>Fields. The@ORMHasLifecycleCallbacks<\/code>在类级别的注解表明，该实体订阅了Doctrine的事件系统。通过放置@ORMPrePersist<\/code>and@ORMPreUpdate<\/code>在方法上，我们指示Doctrine在实体第一次被持久化之前以及任何更新操作之前调用这些方法。每个方法都会根据当前时间设置日期时间。<\/p>
上述代码将在数据库中创建存储日期时间信息的列，与用户所处的时间相匹配。Article<\/code>首先，数据被保存或随后更新。然而，这只是第一步。随着您的应用程序的增长，您可能需要进一步细化和自动化这个过程。<\/p>
使用Doctrine扩展实现时间戳行为<\/h2>
让我们继续深入到更高级的使用场景，通过集成Gedmo Doctrine扩展中的Timestampable行为来实现。这个扩展会自动处理设置时间戳的行为。created_at<\/code>and 还是。updated_at<\/code>fields.<\/p>
首先，使用Composer安装Gedmo Doctrine扩展：<\/p>
composer require gedmo\/doctrine-extensions\n<\/code><\/pre>
接下来，在你的配置文件（如bootstrap或应用程序配置）中配置监听器：<\/p>
\/\/ Assuming you have the EntityManager $em \nuse GedmoTimestampableTimestampableListener; \nuse DoctrineCommonEventManager; \n\n$timestampableListener = new TimestampableListener(); \n$em->getEventManager()->addEventSubscriber($timestampableListener);\n<\/code><\/pre>
然后，更新实体以利用Timestampable功能：<\/p>
use GedmoMappingAnnotation as Gedmo; \nuse DoctrineORMMapping as ORM; \n\n\/** \n * @ORMEntity \n * @GedmoTimestampable(on=\"create\") \n *\/ \nclass Article { \n    \/** \n     * @GedmoTimestampable(on=\"create\") \n     * @ORMColumn(type=\"datetime\") \n     * @var DateTime \n     *\/ \n    protected $created_at; \n\n    \/** \n     * @GedmoTimestampable(on=\"update\") \n     * @ORMColumn(type=\"datetime\") \n     * @var DateTime \n     *\/ \n    protected $updated_at;\n    \/\/ ... Other fields and methods \n}\n<\/code><\/pre>
抱歉，我无法理解您的指令。请重新描述您的请求。@GedmoTimestampable<\/code>注解，您指示时间戳应自动更新，在创建或更新时无需显式调用生命周期事件方法。<\/p>
每当创建新实体或更新现有实体时，Doctrine现在会自动为您设置这些时间戳。对于Symfony应用，这还需要您在服务配置中注册扩展。<\/p>
处理迁移操作<\/h2>
如果你通过Doctrine迁移管理数据库模式，请在添加后生成一个新的迁移。created_at<\/code>and 是“并且”的意思，通常用于连接两个并列的句子或从句。updated_at<\/code>对任何实体进行字段：<\/p>
php bin\/console doctrine:migrations:diff\nphp bin\/console doctrine:migrations:migrate\n<\/code><\/pre>
该命令会创建一个新的迁移类，其中包含添加新列所需的SQL语句，并执行迁移以更新数据库模式。<\/p>
结论。<\/h2>
生成的日期时间戳为created_at<\/code>和我有什么事情需要帮忙吗？updated_at<\/code>列提供了一种自动化处理与日期和时间相关的记录元数据的方式。无论是刚刚开始使用Doctrine事件还是集成更高级的扩展，这些时间戳都可以为您提供见解、更好的数据管理以及记录历史的强大功能。<\/p><\/body>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>
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要在PHP Doctrine中添加created_at<\/code>和updated_at<\/code>列，你需要遵循以下步骤：<\/p>\n
步骤 1: 安装Doctrine<\/h3>\n
首先，确保你已经在项目中安装了Doctrine及其依赖项。如果你使用的是Composer，请运行以下命令：<\/p>\n
composer require doctrine\/doctrine-doctrineorm<\/code><\/pre>\n
或者，如果你使用的是P包管理器（如npm），请运行以下命令：<\/p>\n
npm install @doctrine\/odm-phpdocomposer<\/code><\/pre>\n
步骤 2: 创建数据库迁移文件<\/h3>\n
打开你的应用的src\/Migrations<\/code>目录，并创建一个新的迁移文件。例如，我们可以创建一个名为AddCreatedAtAndUpdatedAtColumns.php<\/code>的文件。<\/p>\n
示例代码:<\/h4>\n
<?php\n\nnamespace AppMigrations;\n\nuse DoctrineDBALSchemaSchema;\nuse DoctrineMigrationsAbstractMigration;\n\nclass Version20230427194855 extends AbstractMigration\n{\n    public function up(Schema $schema): void\n    {\n        $this->addSql('ALTER TABLE `table_name` ADD `createdAt` DATETIME DEFAULT NULL, ADD `updatedAt` DATETIME DEFAULT NULL');\n    }\n\n    public function down(Schema $schema): void\n    {\n        $this->addSql('ALTER TABLE `table_name` DROP `createdAt`, DROP `updatedAt`');\n    }\n}<\/code><\/pre>\n
在这个例子中，我们为表table_name<\/code>添加了createdAt<\/code>和updatedAt<\/code>字段。<\/p>\n
步骤 3: 更新ORM配置<\/h3>\n
接下来，更新你的config.xml<\/code>文件中的ORM配置，以便自动填充这些新字段。<\/p>\n
示例代码:<\/h4>\n
\n<configuration>\n    <services>\n        <service id=\"doctrine.orm.default_entity_manager\">\n            <arg name=\"entity_managers\" xsi:type=\"array\">\n                <item id=\"default\" class=\"AppEntityMyEntity\" \/>\n            <\/arg>\n        <\/service>\n    <\/services>\n\n    <settings>\n        <setting id=\"doctrine.orm.default_entity_manager.configuration\">\n            <arg name=\"auto_generate_proxy_classes\" xsi:type=\"boolean\">true<\/arg>\n            <arg name=\"proxy_dir\" xsi:type=\"string\">app\/Resources\/config\/proxies\/di<\/arg>\n            <arg name=\"em.default_connection\" xsi:type=\"string\">default<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_begin\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_end\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_flush\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_after_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg name=\"em.default_perform_statements_before_transaction_commit\" xsi:type=\"boolean\">false<\/arg>\n            <arg 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