我正在学习Slim Framework v4,并决定使用Respect\Validation
来验证输入的数据,并且遇到了一个障碍,我不知道如何将PDO注入我创建的自定义规则中。
想法是,如果提供的数据存在(或在其他情况下,如果输入正确,则针对数据库验证某些输入)。在这种情况下,我想验证用户的登录凭据。我的想法是:
AuthController.php:
v::with('app\\Validators\\');
$userValidation = v::notBlank()->email()->length(null, 255)->EmailExists()->setName('email');
EmailExists()
是我的自定义规则。
EmailExists.php:
namespace app\Validators;
use PDO;
use Respect\Validation\Rules\AbstractRule;
class EmailExists extends AbstractRule
{
protected $pdo;
public function __construct(PDO $pdo)
{
$this->pdo = $pdo;
}
public function validate($input, $id = null)
{
// a PDO query that checks if the email exists in database
}
}
但是我得到Too few arguments to function app\Validators\EmailExists::__construct(), 0 passed and exactly 1 expected
的错误,由于AbstractRule
没有注入PDO并且我的类对其进行了扩展,这在一定程度上是可以预料的。
因此,如何注入PDO接口,以便可以在自定义规则中使用它?
你们是否在使用另一种方法来验证这种数据?请注意,我正在编写API,因此数据库验证在某种程度上是必须的,并且在过去两天的谷歌搜索之后,我手头没有任何解决方案。
我也在使用PHP-DI
创建PDO接口。这是我的dependencies.php文件:
declare(strict_types=1);
use DI\ContainerBuilder;
use Psr\Container\ContainerInterface;
use app\Handlers\SessionMiddleware;
return function (ContainerBuilder $containerBuilder) {
$containerBuilder->addDefinitions([
PDO::class => function (ContainerInterface $c) {
$settings = $c->get('settings')['db'];
$db = new PDO("mysql:host={$settings['host']};dbname={$settings['database']};charset={$settings['charset']},{$settings['username']},{$settings['password']}");
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$db->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8',time_zone='{$offset}'");
$db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
return $db;
},
'session' => function(ContainerInterface $c) {
return new SessionMiddleware;
}
]);
};
和(部分)index.php:
declare(strict_types=1);
use DI\ContainerBuilder;
use Slim\Factory\AppFactory;
// Instantiate PHP-DI ContainerBuilder
$containerBuilder = new ContainerBuilder();
// Set up settings
$settings = require __DIR__ . '/../app/settings.php';
$settings($containerBuilder);
// Set up dependencies
$dependencies = require __DIR__ . '/../app/dependencies.php';
$dependencies($containerBuilder);
// Build PHP-DI Container instance
$container = $containerBuilder->build();
// Instantiate the app
AppFactory::setContainer($container);
$app = AppFactory::create();
// Register middleware
$middleware = require __DIR__ . '/../app/middleware.php';
$middleware($app);
// Register routes
$routes = require __DIR__ . '/../app/routes.php';
$routes($app);
// Add Routing Middleware
$app->addRoutingMiddleware();
// Run App & Emit Response
$response = $app->handle($request);
$responseEmitter = new ResponseEmitter();
$responseEmitter->emit($response);
任何帮助将不胜感激。
class EmailAvailable extends AbstractRule {
/**
* @param $input
*
* @return bool
*/
public function validate ($sInput) {
return User::where('user_email', $sInput)->count() === 0;
}
}