Backend\Core\Engine\Base\Action::__construct PHP Method

    public function __construct(KernelInterface $kernel)
    {
        parent::__construct($kernel);
        // get objects from the reference so they are accessible from the action-object
        $this->tpl = $this->getContainer()->get('template');
        $this->URL = $this->getContainer()->get('url');
        $this->header = $this->getContainer()->get('header');
        // store the current module and action (we grab them from the URL)
        $this->setModule($this->URL->getModule());
        $this->setAction($this->URL->getAction());
        // populate the parameter array
        $this->parameters = $this->get('request')->query->all();
    }