Twig addExtension Uncaught Twig\Error\RuntimeError

[ghuisman19]

Hi,

Maybe I'm doing something wrong, but I can't tell from the description. I add the time extension to Twig, but then I get an Uncaught Twig\Error\RuntimeError error.

$twig->addExtension(new \Knp\Bundle\TimeBundle\Twig\Extension\TimeExtension());

Uncaught Twig\Error\RuntimeError: Unable to load the "Knp\Bundle\TimeBundle\DateTimeFormatter" runtime in "_string_template

[kbond]

Hi @ghuisman19, are you using this bundle standalone (not with Symfony)?

[ghuisman19]

Hi @kbond, yes, i'm using it with the Twig composer package.

[kbond]

Ah ok, understood. In version 2 of this package, we switched to using a twig runtime for performance reasons. So when using standalone, in addition to the extension, you also need to register a RuntimeLoaderInterface that can locate the DateTimeFormatter object. Is your app using a PSR-11 container?

Additionally, the DateTimeFormatter will need a translator - do you have that covered?

[ghuisman19]

We don't use PSR-11. We use a simple autoload function for all composer packages
We just use Twig to render HTML templates.
Like this:

$twig_loader = new \Twig\Loader\FilesystemLoader(self::$twig_path);
self::$twig = new \Twig\Environment($twig_loader);
self::$twig->addExtension(new \Twig\Extra\Intl\IntlExtension());
//self::$twig->addExtension(new \Knp\Bundle\TimeBundle\Twig\Extension\TimeExtension());

// Render Template
self::$twig->createTemplate((string)$this->render)->render($args);

I don't quite understand the question about the translator.

[kbond]

Ok, here's what will work for you (but you still need a translator - see comment):

self::$twig->addExtension(new \Knp\Bundle\TimeBundle\Twig\Extension\TimeExtension());
self::$twig->addRuntimeLoader(new Twig\RuntimeLoader\FactoryRuntimeLoader([
    Knp\Bundle\TimeBundle\DateTimeFormatter::class => function() {
        return new DateTimeFormatter(???); // you need to inject an instance of \Symfony\Contracts\Translation\TranslatorInterface
    }
]));

See https://github.com/symfony/translation/tree/6.3#translation-component for creating one but you'd need to load the translation key/values provided by this bundle (or just create your own)

[ghuisman19]

Thanks for the explanation. I have no experience at all with sympony translations. So I can't get that working with the translations in KNBlabs package. In Twig i have this string diff.ago.hour.

But with the addRuntimeLoader Twig can at least do the rendering, the Uncaught Twig\Error\RuntimeError is solved.

[kbond]

If you're only dealing with English, there aren't many translations you'd need. You could use the example to fill them in by looking at this file:

$translator = new Translator('en');
$translator->addLoader('array', new ArrayLoader());
$translator->addResource('array', [
    'diff.ago.hour' => '1 hour ago|%count% hours ago',
    // ... all "source"/"targets" from this the translation resource file
], 'en');