在 Slim 中使用 Eloquent

你可以使用 Eloquent 这种数据库 ORM 将你的 Slim 应用程序连接到数据库。

为你的应用程序添加 Eloquent

composer require illuminate/database "~5.1"

Figure 1: Add Eloquent to your application.

配置 Eloquent

在 Slim 的 setting 数组中添加数据库设置项。

return [

"settings" => [

// Slim Settings

"determineRouteBeforeAppMiddleware" => false,

"displayErrorDetails" => true,

"db" => [

"driver" => "mysql",

"host" => "localhost",

"database" => "database",

"username" => "user",

"password" => "password",

"charset" => "utf8",

"collation" => "utf8_unicode_ci",

"prefix" => "",

]

],

];

Figure 2: Settings array.

在 dependencies.php 中，或者其他任意位置添加你的 Service Factories:

// Service factory for the ORM

$container["db"] = function ($container) {

$capsule = new IlluminateDatabaseCapsuleManager;

$capsule->addConnection($container["settings"]["db"]);

$capsule->setAsGlobal();

$capsule->bootEloquent();

return $capsule;

};

Figure 3: Configure Eloquent.

传递数据表实例到控制器

$container[AppWidgetController::class] = function ($c) {

$view = $c->get("view");

$logger = $c->get("logger")

$table = $c->get("db")->table("table_name");

return new AppWidgetController($view, $logger, $table);

};

Figure 4: Pass table object into a controller.

从控制器中查询数据表

namespace App;

use SlimViewsTwig;

use PsrLogLoggerInterface;

use IlluminateDatabaseQueryBuilder;

use PsrHttpMessageServerRequestInterface as Request;

use PsrHttpMessageResponseInterface as Response;

class WidgetController

{

private $view;

private $logger;

protected $table;

public function __construct(

Twig $view,

LoggerInterface $logger,

Builder $table

) {

$this->view = $view;

$this->logger = $logger;

$this->table = $table;

}

public function __invoke(Request $request, Response $response, $args)

{

$widgets = $this->table->get();

$this->view->render($response, "app/index.twig", [

"widgets" => $widgets

]);

return $response;

}

}

Figure 5: Sample controller querying the table.

使用 where 查询数据表

...

$records = $this->table->where("name", "like", "%foo%")->get();

...

Figure 6: Query searching for names matching foo.

通过 id 查询数据表

...

$record = $this->table->find(1);

...

Figure 7: Selecting a row based on id.

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