PHP-DI injectOn 不注入(inject) setter 方法

Question

我在使用 ContainerBuilder 配置容器时设置了依赖项和定义，然后编译它以获得实际的 Container，但是每当我尝试注入(inject)依赖项时，它们总是倾向于被忽略。

我是否错过了 injectOn() 方法的概念，或者我在这里做错了什么($this->translator 仍未分配)？我已经尝试了不同的方法，既实例化类并将对象添加到 ContainerBuilder 并将其作为 \DI\object() 定义传递，两者都使用同样的结果。

<?php
include "../vendor/autoload.php";

class Translator
{}

class TextHandle
{
    protected $translator;

    public function setTranslator (Translator $translator)
    {
        $this->translator = $translator;
    }

    public function test ()
    {
        var_dump($this->translator);
    }
}

class TestCase
{
    protected $translator;

    public function __construct (Translator $translator)
    {
        $this->translator = $translator;
    }
}

// Setup container
$containerBuilder = new \DI\ContainerBuilder();
$containerBuilder->addDefinitions([
    Translator::class => \DI\object(),
]);

$container = $containerBuilder->build();

// Create object and inject
$textHandle = new TextHandle();
$container->injectOn($textHandle);

// Test injection, fails
$textHandle->test(); // NULL

// Test access, works
$translator = $container->get(Translator::class);
var_dump($translator); // object(Translator)#18 (0) {}

// Try having the container instantiate
$textHandle = $container->make(TextHandle::class);
$textHandle->test(); // Null

// Try object with constructor, works
$testCase = $container->make(TestCase::class);
var_dump($testCase); // Translator is set

Answer 1

根据 the documentation , PHP-DI 不通过 setter 执行 Autowiring 。

您应该添加 TextHandle 类的定义并将其配置为通过 setter 注入(inject) Translator:

$containerBuilder->addDefinitions([
    TextHandle::class => \DI\object()->method('setTranslator', \DI\get(Translator::class))
]);