php - Laravel:从另一个位置调用 Controller 方法

Question

在我的 Laravel 应用程序中，我有以下 Controller ，它将 Elastic search 的实例作为第一个参数，然后是另一个变量:

use Elasticsearch\Client;
use App\Http\Requests;
use App\Http\Controllers\Controller;

use Illuminate\Http\Request;

class AngularController extends Controller {
    public function selectRandom(Client $es, $numRows) {
        # ...search params here
        $results = $es->search($searchParams);
        return $results;
    }
}

我需要从另一个 Controller 调用上面 Controller 的方法，我这样做:

class HomeCtrl extends Controller {

    public function index() {

        $featured = new AngularController();

        return $featured->selectRandom(12);
    }

}

我收到以下错误

Argument 1 passed to App\Http\Controllers\AngularController::selectRandom() must be an instance of Elasticsearch\Client, integer given

我不太熟悉 OOP。我调用它不正确吗？因为我认为我调用的方法会采用注入(inject)到 Controller 中的实例，而不是从我调用它的地方。

Answer 1

When you are calling a method from your Controller to another Controller that means you are doing wrong. For this purpose you should use service.

在app\Services Utility.php中创建一个类

use Elasticsearch\Client;

class Utility {

    public function selectRandom(Client $es, $numRows) {
        # ...search params here
        $results = $es->search($searchParams);
        return $results;
    }
}

and just inject this class to your controller