Autoload for controller classes in slim framework - php

Question

I'm trying to build a site with slim and autoloading my controller classes for the routes. I'm currently setting up the base structure and testing with a single route with nothing more than a simple "Test" output.
I prevously did this stuff with defining a spl_autoload_register function, but as this approach isn't recommended by slim and composer I want to do it right and I'm not trying to autoload my classes.
My Project is set up as this:
The class BlockController inside the file with the same Name under Controller is inside a namespace defined with namespace MyAPI\Controller;
app/Controller/BlockController.php
namespace MyAPI\Controller;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
class BlockController
{
public function getList(Request $request, Response $response, $args)
{
return $response->withStatus(200)
->withHeader('Content-Type', 'text/html')
->write("Test");
}
}
I'm loading the dependencies and settings and after that all my routes (which contains currently only some small ones for testing my architecture):
public/index.php:
require __DIR__ . '/../vendor/autoload.php';
$settings = require __DIR__ . '/../app/settings.php';
$app = new \Slim\App($settings);
require __DIR__ . '/../app/dependencies.php';
require __DIR__ . '/../app/routes.php';
$app->run();
app/routes.php (is very simple, will be extended with more Route-files):
require 'Routes/BlockRoute.php';
app/Routes/BlockRoute.php:
use MyAPI\Controller\BlockController;
$container["BlockController"] = function ($container) {
return new BlockController($container);
};
$app->group('/block', function() use ($container) {
$this->get('[/]', 'BlockController::getList');
});
So the first command inside BlockRoute.php is the use of the BlockController-namespace. Everything under app/ should have the Base-Namespace MyAPI.
As described in the slim-documentation I planned to do that with to autoload feature of composer, so I modified my composer.json and added the following:
{
"require": { .. },
"autoload": {
"psr-4": {
"MyAPI\\": "app"
}
}
}
Edit: updated path to app-folder after the answer from Adam Lavin
After that I ran composer update. Is that the right command for those changes? Or should I use composer install? Couldn't find any more information what I have to do after making those additions in the autoload-section.
When I run the site now with the php webserver and navigate to this route /block I get the following RuntimeException:
Callable BlockController::getList does not exist
File: C:\Prog\src\vendor\slim\slim\Slim\CallableResolver.php
So the problem is that BlockController doesn't get included/autoloaded correctly but I don't understand why or what exactly the problem is. I tried to find some examples of working configurations with slim+composer+autoloading of classes but couldn't find something related.
Any input appreciated.

Answer 1

Since you're pointing MyApp\\ to ../src (the same directory as composer), the autoloader is going to try and find the controller in src/Controllers/BlockController.php.
It should be pointing to ../src/app, though since composer.json is in the src folder it can be simplified to app in the resulting composer.json file.
{
"require": { .. },
"autoload": {
"psr-4": {
"MyAPI\\": "app"
}
}
}
Additionally, In your example, the namespace of the BlockController is MoinAPI\Controllers, and should be MyAPI\Controllers.
And finally, in slim, you use a single colon instead of a double to refer to a callable route. BlockController::getList should be BlockController:getList

Answer 2

Run this from within docker container, or using the same php binary that composer used.
composer dump-autoload -o -vvv #-o fixed my problem in my case