Yii2:模块内的可配置模型 [英] Yii2: Configurable models inside module

问题描述

在 Yii2 模块中以可配置的方式包含模型/活动记录的最佳实践是什么?

What is the best practice of including models/activerecords within a Yii2 module in a way that they are configurable?

当我们想要使用包含在模块中的 activerecord 时，这些只是我们面临的一些问题:

These are just some of the problems we face when we want to use an activerecord included inside a module:

1. 添加事件和模块提供的模型/活动记录的行为.我想使用 Yii2 的 配置格式.如何做到这一点?

定义与模块外部存在的模型/活动记录的关系.当将包含在模块中的 activerecord 链接到 User activerecord 时，我们可以依赖 Ỳii::$app->user->identityClass，但对于其他自定义关系，我们可能需要扩展 activerecord.有没有更好的办法?从模块扩展 activerecord 类在某种程度上违背了模块化的目的.

Defining relations with models/activerecords that exist outside of the module. When linking an activerecord contained inside a module to the User activerecord we can rely on Ỳii::$app->user->identityClass, but for other custom relations we might need to extend the activerecord. Is there any better approach? Extending activerecord classes from modules somewhat defeats the purpose of modularity.

在模块/活动记录中配置各种其他变量.假设我们要调整最大字符串长度验证值.在模块控制器中，我们总是可以使用 $this->module->params 读取任何自定义值，但我们不能从模型或 ActiveRecord 中执行此操作.我们应该怎么做?

Configuring various other variables within the module/activerecord. Let's say we want to adjust the max string length validation value. In a module Controller, we can always use $this->module->params to read any custom value, but we cannot do this from a Model or an ActiveRecord. What are we supposed to do instead?

推荐答案

我想你最终可能会使用 依赖注入:

I think you might end up using dependency injection:

编写一个扩展commonextensionsMyBootstrap":

Write an extension "commonextensionsMyBootstrap":

namespace commonextensions;

use Yii;
use yiiaseBootstrapInterface;
use yiiaseApplication;

class MyBootstrap implements BootstrapInterface {
    /**
     * @param  Application $app Application
     **/
    public function bootstrap($app) {
        Yii::$container->set("common\modules\test\models\Test1", "common\modules\test\models\Test2");
    }
}

添加到您的配置:

'bootstrap' => [
    'commonextensionsMyBootstrap',
],

'components' => [ 
    //  ... 
]

并且在你的代码中你必须使用 Yii::$container->get():

and in your code you have to use Yii::$container->get():

$test = Yii::$container->get('commonmodules	estmodelsTest1');
var_dump($test);

这将创建 Test2 模型而不是 Test1.如果您希望 ActiveRecord 发生这种情况，请覆盖以下内容:

which will create Test2 model instead of Test1. If you want this to happen for your ActiveRecord, override this:

public static function instantiate($row) {
    return Yii::$container->get(static::class);
}

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