Slim 3 Controller nicht mit DB-Container verbinden

Question

Ich bin ein neues in schlanken Rahmen und bin mit anonymen Funktionen von Routen auf Datenbankdaten mit einer bestimmten Route und ihre Arbeit zugreifen, aber wenn ich versuche, sie in einem Controller übergeben bekomme den Fehler Balg

Slim Application Error The application could not run because of the following error:

Details

Type: Error Message: Call to undefined method Slim\Container::prepare() File: C:\xampp\htdocs\drivingapp\app\src\Controllers\apiController.php Line: 22 Trace

#0 [internal function]: App\Controllers\apiController->igice(Object(Slim\Http\Request), Object(Slim\Http\Response), Array)

#1 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\Handlers\Strategies\RequestResponse.php(41): call_user_func(Array, Object(Slim\Http\Request), Object(Slim\Http\Response), Array)

#2 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\Route.php(344): Slim\Handlers\Strategies\RequestResponse->__invoke(Array, Object(Slim\Http\Request), Object(Slim\Http\Response), Array)

#3 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\MiddlewareAwareTrait.php(116): Slim\Route->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))

#4 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\Route.php(316): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))

#5 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\App.php(438): Slim\Route->run(Object(Slim\Http\Request), Object(Slim\Http\Response))

#6 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\MiddlewareAwareTrait.php(116): Slim\App->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))

#7 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\App.php(332): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))

#8 C:\xampp\htdocs\drivingapp\vendor\slim\slim\Slim\App.php(293): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response))

#9 C:\xampp\htdocs\drivingapp\public\index.php(30): Slim\App->run()

#10 {main}

Im Folgenden meine apiController.php ist:

<?php 

namespace App\Controllers; 

use Slim\Views\Twig; 
use Psr\Log\LoggerInterface; 
use Slim\Http\Request; 
use Slim\Http\Response; 


class apiController{ 

private $db; 

public function __construct($db){ 
    $this->db = $db; 

} 

public function igice($request, $response){ 

     $stmt = $this->db->prepare("SELECT * FROM igice ORDER BY igiceid"); 
     $stmt->execute(); 
     $dowork = $stmt->fetchAll(); 
     return $this->response->withJson($dowork); 
} 
} 

unten ist mein mein dependencie.php

$container['db'] = function ($c) { 
    $settings = $c->get('settings')['db']; 
    $pdo = new PDO("mysql:host=" . $settings['host'] . ";dbname=" . $settings['dbname'], 
     $settings['user'], $settings['pass']); 
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); 
    $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC); 
    return $pdo; 
}; 


// ----------------------------------------------------------------------------- 
// Registering Controllers 
// ----------------------------------------------------------------------------- 

$container[App\Action\HomeAction::class] = function ($c) { 
    return new App\Action\HomeAction($c->get('view'), $c->get('logger')); 
}; 

$container['apiController']=function($c){ 
    return new App\Controllers\apiController($c->get('db')); 
}; 

Below its my routes.php:

$app->get('/ibice','App\Controllers\apiController:igice'); 

Answer 1

Ändern apiController.php

<?php 
namespace App\apiController; 

use Slim\Views\Twig; 
use Psr\Log\LoggerInterface; 
use Slim\Http\Request; 
use Slim\Http\Response; 
use PDO; 

final class apiController{ 
private $db; 
public function __construct($host, $dbname, $user, $password){ 
     try { 

    $this->db = new PDO("mysql:host=" . $host . ";dbname=" . $dbname, $user, $password); 
    $this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); 
    $this->db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC); 
    } 
catch(PDOException $e) 
     { 
     echo $e->getMessage(); 
     } 
} 
public function getDb() { 
if ($this->db instanceof PDO) { 
     return $this->db; 
} 
} 
} 

Dann sollten Sie Funktionen schreiben für jede Strecke und ich Sie geben ein Beispiel

<?php 
namespace App\apiController; 

use Slim\Views\Twig; 
use Psr\Log\LoggerInterface; 
use Slim\Http\Request; 
use Slim\Http\Response; 

final class Hello 
{ 
    private $view; 
    private $conn; 

    public function __construct(Twig $view, $db) 
    { 
     $this->view = $view; 
     $this->conn = $db->getDb(); 
    } 

public function __invoke(Request $request, Response $response, $args) 
{ 
    $this->logger->info("action dispatched"); 

$stmt = $this->conn->prepare("SELECT * FROM igice ORDER BY igiceid"); 
$stmt->execute(); 
$dowork = $stmt->fetchAll(); 
return $response->withJson($dowork,201); 

} 
} 

ändern dependencies.php

$container['apiController']=function($c){ 
    return new App\Controllers\apiController::class($c->get('db')); 
}; 

Answer 2

Es ist besser Container zu Ihrem apiController Konstruktor hinzuzufügen leicht alle Containerobjekte einschließlich db zugreifen, so dass Sie leicht Ihren Code wie dieses Beispiel ändern können:

nur durch das Hinzufügen __get magische Methode zu Ihrem Controller und Sie können problemlos alle Container zugreifen Objekte in Ihrem Controller nur $ this-> Beziehungsname verwendet wird;)

<?php 

namespace App\Controllers; 

use Slim\Views\Twig; 
use Psr\Log\LoggerInterface; 
use Slim\Http\Request; 
use Slim\Http\Response; 


class apiController{ 

protected $container; 

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

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

public function igice($request, $response){ 

    $stmt = $this->db->prepare("SELECT * FROM igice ORDER BY igiceid"); 
    $stmt->execute(); 
    $dowork = $stmt->fetchAll(); 
    return $this->response->withJson($dowork); 
} 
} 

in Ihren Abhängigkeiten:

$container['apiController']=function($c){ 
    return new App\Controllers\apiController($c); 
}; 

und für die Strecken:

$app->get('/ibice','App\Controllers\apiController:igice'); 

wie das Ihre, bevor