向 Symfony 中的现有实体添加一列

问题描述

我一直在我的 web 服务器上玩弄 Symfony，我一直在为我的数据库创建带有学说的实体.我想向这些实体之一添加一列......我想做这样的事情:

I've been playing around with Symfony on my web server and I've been creating entity with doctrine for my database. I wanted to add a column to one of these entity... I wanted to do something like:

php app/console doctrine:modify:entity

现在我知道这个命令不存在，但是有没有一种方法(无需进行整个迁移)来简单地添加一列.

Now I know that this command doesn't exists, but is there a way (without doing a whole migration) to simply add a column.

附言我知道我可以打开 php 文件并在那里以文本方式添加列，然后更新架构，但我将其分发给一些客户端，我喜欢更类似命令行"的方法.

P.S. I know I could open the php file and textually add the column there and then update the schema, but I'm distributing this to some clients and I like a more "command-line-like" approach.

推荐答案

实际上，使用 Doctrine 来做你建议的事情根本没有意义.

Actually, using Doctrine does not make sense at all to do something like you suggested.

Doctrine 是一个 ORM(对象关系映射)工具.这意味着您想从 PHP 代码中抽象出数据库，将数据库的内容委托给 Doctrine.Doctrine 在这方面做得很好.

Doctrine is a ORM (Object-Relational Mapping) tool. It means that you want to abstract the database from your PHP code, you delegate database stuff to Doctrine. Doctrine does a wonderful job on that area.

因为你想让你的客户/同行更新模型的最新版本，你应该使用 Doctrine Migrations ( http://symfony.com/doc/current/bundles/DoctrineMigrationsBundle/index.html).这就是管理数据库更新的方式.此外，它使您可以完全控制升级/降级数据库时要执行的操作.例如，您可以在添加 FK 之前设置默认值.

As you want to keep your customers/peers updated with the latest version of the model, you should use the Doctrine Migrations ( http://symfony.com/doc/current/bundles/DoctrineMigrationsBundle/index.html ). That's the way to manage database updates. Moreover, it gives you complete control on what to do when upgrading/downgrading the database. You could, e.g., set default values before you add the FK.

在类上添加新属性的步骤应该是:

The steps for adding a new property on the class should be:

对于 Symfony 2:

• 通过以下方式修改类:

• modify the class by:

• AcmeMyBundleEntityCustomer 并添加你想要的属性；

• AcmeMyBundleEntityCustomer and add the property you want;

AcmeMyBundleEntityCustomer

或修改学说文件:

Acme/MyBundle/Resources/config/doctrine/customer.yml

运行控制台命令(它将在类中添加正确的设置/获取)

run the console command (it will add the proper set/get in the class)

php 应用/控制台学说:生成:实体 AcmeMyBundle:客户

运行控制台命令

php 应用程序/控制台原则:迁移:差异

运行控制台命令(它将在 app/DoctrineMigrations 上放置一个新文件)

run the console command (it will place a new file on app/DoctrineMigrations)

php 应用程序/控制台准则:迁移:迁移

在部署新版本的代码时，您所要做的就是更新源代码并运行上面的命令.

When you're deploying the new version of the code, all you got to do is update the source code and run the command above.

对于 Symfony 3:

• 通过以下方式修改类:

• modify the class by:

• AcmeMyBundleEntityCustomer 并添加你想要的属性；

• AcmeMyBundleEntityCustomer and add the property you want;

AcmeMyBundleEntityCustomer

或修改学说文件:

Acme/MyBundle/Resources/config/doctrine/customer.yml

运行控制台命令(它将在类中添加正确的设置/获取)

run the console command (it will add the proper set/get in the class)

php bin/console science:generate:entities AcmeMyBundle:Customer

运行控制台命令(更新数据库)

run the console command (update database)

php bin/console algorithm:schema:update --force

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