D8 - Dependency Injection - Controllers Example

D8 - Dependency Injection - Controllers

D8 - Dependency Injection - Controllers

Key ContainerInterface method - create()
public static function create(ContainerInterface $container)

and use of $container->get()

...

lightning-8/modules/custom/basic/src/Controller/BasicController.php

<?php

namespace Drupal\basic\Controller;

use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\basic\BasicRecipeService;
use Drupal\Core\Config\ConfigFactory;
use Drupal\Core\Session\AccountProxy;

/**
 * Basic controller.
 */
class BasicController extends ControllerBase {

  private $recipeService;
  protected $configFactory;
  protected $currentUser;

  public static function create(ContainerInterface $container) {
    return new static(
      $container->get('basic.basic_recipes'),
      $container->get('config.factory'),
      $container->get('current_user')
    );
  }

  public function __construct(BasicRecipeService $recipeService, ConfigFactory $configFactory, AccountProxy $currentUser) {
    $this->recipeService = $recipeService;
    $this->configFactory = $configFactory;
    $this->currentUser = $currentUser;
  }

  public function recipeList() {
    kint($this->recipeService->getRecipes()); die();
  }

}