PHPStan returns: ITemplate::render() invoked with 1 parameter, 0 required

You're not doing anything wrong, only Phpstan is too strict on this old design.

Or you can put this error into phpstan baseline and let it be ignored.

Last edited by jspetrak (2021-05-18 11:17)

I am just adding annotation on top of every presenter, to hint which Template class will be really used. I'ts useful when you use {templateType} macro and custom Template classes to be type-safe on both sides (presenter/control and latte)

So something like this:

/**
 * @property-read ExampleTemplate $template
 */
class ExamplePresenter extends \Nette\Application\UI\Presenter {}

If you use the default template instead of custom ones, then this should work:
@property-read Nette\Bridges\ApplicationLatte\DefaultTemplate&\stdClass $template

Eventually could be used this:

class ExamplePresenter extends \Nette\Application\UI\Presenter
{

	private ExampleTemplate $template;

	protected function beforeRender(): void
	{
		parent::beforeRender();
		$this->template = $this->createTemplate(ExampleTemplate::class);
	}

	public function renderDefault(): void
	{
		$this->sendTemplate($this->template);
	}

}

The sendTemplate() part is required, Nette does not know about the private $this->template property.
Note it's only possible, because $this->template property in Nette\Application\UI\Control is private and accessed via magically called getTemplate() method. In case of protected or public method would type override fail.

Last edited by Marek Bartoš (2021-05-18 11:43)

Ad. private ExampleTemplate $template; – method flashMessage() would fail. It assigns flashes into template from getTemplate() method, which means an otherwise unused template is created and flash messages are assigned to it instead of custom one. So, using annotation is still probably the best way.