Warning: This question is Laravel 4 specific.
I've been using Facades in my controllers before. Therefore I know the code is working. Now I need to introduce dependency injection for various reasons.
After refactoring the controller I get following error:
Illuminate Container BindingResolutionException
Unresolvable dependency resolving [Parameter #0 [ $name ]].
I can't figure out where the problem is. The Error message seems cryptic to me and I don't understand it. (I don't see any problem with my __constructor parameters since I've registered the binding for the HelpersInterface)
Here are the important parts of my code:
File: app/start/global.php
<?php
// ...
App::bind('AcmeInterfacesHelpersInterface', 'AcmeServicesHelpers');
File: composer.json
// ...
"autoload": {
// ...
"psr-0": {
"Acme": "app/"
}
},
// ...
File: app/Acme/Controllers/BaseController.php
<?php namespace AcmeControllers;
use CarbonCarbon;
use Controller;
use IlluminateFoundationApplication as App;
use IlluminateViewFactory as View;
use AcmeInterfacesHelpersInterface as Helpers;
use IlluminateHttpResponse;
class BaseController extends Controller {
/**
* @var IlluminateFoundationApplication
*/
private $app;
/**
* @var CarbonCarbon
*/
private $carbon;
/**
* @var IlluminateViewFactory
*/
private $view;
/**
* @var AcmeInterfacesHelpersInterface
*/
private $helpers;
function __construct(App $app, Carbon $carbon, View $view, Helpers $helpers)
{
$this->app = $app;
$this->carbon = $carbon;
$this->view = $view;
$this->helpers = $helpers;
$lang = $this->app->getLocale();
$now = $this->carbon->now();
$this->view->share('lang', $lang);
$this->view->share('now', $now);
}
/**
* Missing Method
*
* Abort the app and return a 404 response
*
* @param array $parameters
* @return Response
*/
public function missingMethod($parameters = array())
{
return $this->helpers->force404();
}
}
File: app/Acme/Services/Helpers.php
<?php namespace AcmeServices;
use IlluminateConfigRepository as Config;
use IlluminateDatabaseConnection as DB;
use IlluminateHttpRequest;
use IlluminateRoutingRedirector as Redirect;
use IlluminateSessionStore as Session;
use IlluminateSupportFacadesResponse;
use IlluminateTranslationTranslator as Lang;
use IlluminateViewFactory as View;
use AcmeInterfacesMockablyInterface;
use MonologLogger as Log;
class Helpers implements HelpersInterface {
// ...
public function __construct(
Config $config,
Lang $lang,
View $view,
MockablyInterface $mockably,
Log $log,
Request $request,
Session $session,
DB $db,
Redirect $redirect,
Response $response
) {
// ...
}
// ...
}
File: app/Acme/Providers/HelpersServiceProvider.php
<?php namespace AcmeProviders;
use IlluminateSupportServiceProvider;
use AcmeServicesHelpers;
class HelpersServiceProvider extends ServiceProvider {
private $db;
private $defaultDbConnection;
protected function init()
{
$this->db = $this->app['db'];
$this->defaultDbConnection = $this->db->getDefaultConnection();
}
public function register()
{
$this->init();
$this->app->bind('helpers', function ()
{
return new Helpers(
$this->app['config'],
$this->app['translator'],
$this->app['view'],
$this->app['mockably'],
$this->app->make('log')->getMonolog(),
$this->app['request'],
$this->app['session.store'],
$this->db->connection($this->defaultDbConnection),
$this->app['redirect'],
$this->app['IlluminateSupportFacadesResponse']
);
});
}
