Laravel-服务提供商-绑定多个类 [英] Laravel - Service Provider - Bind multiple classes

问题描述

我知道如何绑定单个类:

I know how to bind a single class:

public function register() {
    $this->app->bind('search', 'Laracasts\Search\Search');
}

但是想像一下我的Laracasts\Search\目录具有以下文件:

But imagine my Laracasts\Search\ dir having these files:

• Search.php//类Search
• SearchX.php//类SearchX
• SearchY.php//类SearchY
• SearchZ.php//类SearchZ

将这四个文件/类绑定到搜索外观的最佳方法是什么?

What is the best way to bind these four files/classes into the search facade?

我阅读了另一个无关的问题，我们可以使用映射器.但是如何?

I read in another non-related question that we can use a mapper. But how?

推荐答案

为每个类/门面使用单独的绑定:

Use a separate binding for each class/facade:

public function register() {
    $this->app->bind('search.x', 'Laracasts\Search\SearchX');
    $this->app->bind('search.y', 'Laracasts\Search\SearchY');
    ...
}

绑定只能绑定到一件事.当然，在绑定类中，您可以执行任何您喜欢的事情:

A binding can only be bound to one thing. Of course, within the bound class, you can do anything you like:

public function register() {
    $this->app->bind('search.all', 'Laracasts\Search\SearchAll');
}

class SearchAll() {

    private $searchers = []; // an array of searchers

    // Use Laravel Dependency Injection to instantiate our searcher classes
    public function __construct(SearchX $searchX, SearchY $searchY) {
        $this->searchers = [$searchX, $searchY];
    }

    public function search($value) {
        $matches = [];
        foreach ($this->searchers() as $searcher) {
            $matches += $searchers->search();
        }
        return $matches;
    }
}

// elsewhere in your app...
$searcher = app('search.all');
$matches = $searcher->search('hello');

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