Slim framework Message: Callable Homecontroller does not exist - php

Question

Project Structure
public/index.php
<?php
require __DIR__ . '/../vendor/autoload.php';
ini_set('display_errors', 'On');
if (PHP_SAPI == 'cli-server') {
// To help the built-in PHP dev server, check if the request was actually for
// something which should probably be served as a static file
$url = parse_url($_SERVER['REQUEST_URI']);
$file = __DIR__ . $url['path'];
if (is_file($file)) {
return false;
}
}
session_start();
// Instantiate the app
$settings = require __DIR__ . '/../src/settings.php';
$app = new \Slim\App($settings);
// Set up dependencies
require __DIR__ . '/../src/dependencies.php';
// Register middleware
require __DIR__ . '/../src/middleware.php';
// Register routes
require __DIR__ . '/../src/routes.php';
// Run app
$app->run();
Here we have the composer.json
{
"autoload":{
"psr-4": {
"App\\": "src"
}
},
"require": {
"php": ">=5.5.0",
"slim/slim": "^3.1",
"slim/php-view": "^2.0",
"monolog/monolog": "^1.17",
"illuminate/database": "~5.1",
"slim/twig-view": "^2.3"
},
"require-dev": {
"phpunit/phpunit": ">=4.8 < 6.0"
},
"autoload-dev": {
"psr-4": {
"Tests\\": "tests/"
}
},
"config": {
"process-timeout" : 0
},
}
Here is my controller, i obtain a error with the namespace and in all the examples that i have seen use this so.. I don't know what to do more
<?php
namespace \App\Controllers;
class Homecontroller
{
protected $container;
// constructor receives container instance
public function __construct(ContainerInterface $container) {
$this->container = $container;
}
public function home($request, $response, $args) {
echo "locura";
// your code
// to access items in the container... $this->container->get('');
return $response;
}
public function contact($request, $response, $args) {
// your code
// to access items in the container... $this->container->get('');
return $response;
}
}
Actual configuration
In my routes.php I have put this:
$app->get('/new', \Homecontroller::class . ':home');
Before configuration
In the above code, I tried to create the controller into the container, and then use
$app->get('/new', '\HomeController:home');
And in the dependencies.php I put this code:
$container['HomeController'] = function($c) {
$view = $c->get("view"); // retrieve the 'view' from the container
return new HomeController($view);
};
but I didn't obtain any result with any configuration
I would like to load the HomeController from router
This is the error that I have when I put api.powertv/new
Type: RuntimeException
Message: Callable Homecontroller does not exist
File: /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/CallableResolver.php
Line: 90
i come here, and I put this post like my last resource, if this fails I don't know what I am going to do.

Answer 1

Try to use absolute namespace path in your:
dependencies.php
$container['yourController'] = function ($c) {
$view = $c['view'];
return new \App\Controllers\YourController($view);
}
routes.php
$app->get('your_defined_route_name', \App\Controllers\YourController::class . ':YourControllerMethod');

Answer 2

The name inside the container and thoose who you use in the route must match
You've been set the container key to HomeController and used \HomeController in the route, these strings are not equal.
either self create the strings
$container['HomeController'] = function($c) {
$view = $c->get("view"); // retrieve the 'view' from the container
return new HomeController($view);
};
$app->get('/new', 'HomeController:home');
or use the ::class syntax for both:
$container[HomeController::class] = function($c) {
$view = $c->get("view"); // retrieve the 'view' from the container
return new HomeController($view);
};
$app->get('/new', [HomeController::class, 'home');
// or $app->get('/new', HomeController::class . ':home');

Answer 3

with the answer of Pheara I obtain another error, is the next:
Type: Error
Message: Undefined constant 'App\controllers'
File:/Users/alfonso/Sites/powertv_api/src/Controllers/HomeController.php
Line: 5
the trace of the error is the next:
/Users/alfonso/Sites/powertv_api/vendor/composer/ClassLoader.php(444): include()
#1 /Users/alfonso/Sites/powertv_api/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile('/Users/alfonso/...')
#2 [internal function]: Composer\Autoload\ClassLoader- >loadClass('App\\Controllers...')
#3 [internal function]: spl_autoload_call('App\\Controllers...')
#4 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/CallableResolver.php(89): class_exists('App\\Controllers...')
#5 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/CallableResolver.php(67): Slim\CallableResolver->resolveCallable('App\\Controllers...')
#6 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/CallableResolverAwareTrait.php(45): Slim\CallableResolver->resolve('App\\Controllers...')
#7 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/Route.php(330): Slim\Routable->resolveCallable('App\\Controllers...')
#8 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#9 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/Route.php(313): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#10 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/App.php(495): Slim\Route->run(Object(Slim\Http\Request), Object(Slim\Http\Response))
#11 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#12 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/App.php(388): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#13 /Users/alfonso/Sites/powertv_api/vendor/slim/slim/Slim/App.php(296): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response))
#14 /Users/alfonso/Sites/powertv_api/public/index.php(39): Slim\App->run()
#15 {main}
For solve this error you have to put the namespace in the 3 line:
<?php
namespace [yournamespace]
//rest of your controller