Question

抱歉我的英语。

堆栈：Slim 3框架+ Eloquent ORM。 Eloquent与Slim一起工作。

我想使用一种MVC模式，其中瘦控制器和胖模型（所有数据库查询和其他重逻辑）。

我发现的是如何在这样的路线中使用它：

$app->get('/loans', function () use ($app) {
    $data = DB::table('loan_instalment')->get(); // works
    $data = $this->db->table('loan_instalment')->get(); // works
    ...
}

我想要的是能够从选择的模型中调用公共方法，如下所示：

use \src\models\Instalment;
$app->get('/loans', function () use ($app) {
    $data = $this->model('Instalment')->getSomething(12);
    ...
}

和Model类是：

namespace src\models;

use Illuminate\Database\Eloquent\Model as Model;
use Illuminate\Database\Capsule\Manager as DB;

class Instalment extends Model
{
    protected $table = 'loan_instalment';  

    public function getSomething($id)
    {
        return $this->table->find($id);
    }

    // bunch of other methods
}

我的应用看起来像basic Slim skeleton，Eloquent设置：

$capsule = new \Illuminate\Database\Capsule\Manager;
$capsule->addConnection($container['settings']['db']);
$capsule->setAsGlobal();
$capsule->bootEloquent();


$container['db'] = function ($container) use ($capsule){
    return $capsule;
};

有可能吗？

Answer 1

如果你想使用MVC模式，你需要制作基本控制器。

<?php

namespace App\Controller;

use Slim\Container;

class BaseController
{
    protected $container;

    public function __construct(Container $container)
    {
        $this->container = $container;
    }

    public function getContainer()
    {
        return $this->container;
    }

    public function __get($name)
    {
        return $this->container->{$name};
    }

    public function __set($name, $value)
    {
        $this->container->{$name} = $value;
    }
}

容器：

// Base Controller
$container[App\Controller\BaseController::class] = function ($c) {
    return new App\Controller\BaseController($c);
};

$capsule = new \Illuminate\Database\Capsule\Manager;
$capsule->addConnection($container['settings']['db']);
$capsule->setAsGlobal();
$capsule->bootEloquent();

$container['db'] = function ($container) use ($capsule){
    return $capsule;
};

强烈建议在模型上使用静态功能

<?php

namespace App\models;

use Illuminate\Database\Eloquent\Model as Model;
use Illuminate\Database\Capsule\Manager as DB;

class Instalment extends Model
{
    protected $table = 'loan_instalment';  

    public static function getSomething($id)
    {
        return Instalment::find($id);
    }
}

现在您的代码变为：

<?php

use App\models\Instalment;
$app->get('/loans', function ($request, $response, $args) {
    $data = Instalment::getSomething(12);
    ...
}

控制器：

<?php

namespace App\Controller;

use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Message\ResponseInterface as Response;
use App\models\Instalment;

class HomeController extends BaseController
{
    public function __invoke(Request $request, Response $response, Array $args)
    {
        $data = Instalment::getSomething(12);
        // load the template
        return $response;
    }
}

控制器的路线

<?php

$app->get('/', App\Controller\HomeController::class);

它看起来更干净，不是吗？

更多教程：

Answer 2

您可以使用Slim的可用性来使用控制器。

制作一个基本的控制器：

// BasicController.php
<?php    
namespace src\Controllers;

class BasicController
{

    public function model(string $model)
    {
        return new $model();
    }

}

然后在您的控制器中扩展此类并将其添加到slim容器

//SomeController.php
<?php
namespace src\Controllers;

use \Psr\Http\Message\ServerRequestInterface as Request;
use \Psr\Http\Message\ResponseInterface as Response;

use \src\models\Instalment as Instalment;

class SomeController extends BasicController
{
    public function index(Request $request, Response $response, $args)
    {
        $this->model(Instalment::class)->getSomethingOutOfDB;

        //do something else
    }
}


...
//container.php
use \Slim\Container as Container;

$container[\src\Controllers\HomeController::class] = function(Container $container) {
    return new \src\Controllers\Homecontroller();
}
...


...
//routes.php
$app->get('/someroute', \src\Controllers\HomeController::class . ':index');
...

另一种可能性是通过以下方式扩展您的\ Slim \ App：

//newApp.php
namespace scr\App

class newApp extends \Slim\App
{
    public function model(string $model)
        {
            return new $model();
        }
}

我实际上会反对这两种方法，而不是以这种方式加载模型，因为这被认为是不好的做法。

最好只使用：

//routes.php
...
use src\Models\Instalment;
...

...
$app->get('/someroute', function() {
    $instalment = new Instalment();
    // do something with it...
});

Slim Model数据库实例

2 个答案: