Limit user languages to only two

Kirby 4 Solved ✔️
1

hello everyone. new topic today. i want my users to be able to switch their panel language (not content language) to only 2 options, since all our yamls are only in two languages and kirby offers by default a lot more languages. can this easily be done? i could not find any info to achieve this. thank you!

2

You could try removing unwanted languages from /kirby/i18n/translations.

3

But then that would be overwritten every time you update.

I think it would be a better option to overwrite the account view, to be specific, the user.changeLanguage dialog and replace

 Field::translation(['required' => true])

with something custom.

Or maybe easier: Use a custom Kirby instance and overwrite the translations() method (I guess you should not want to use other languages in the frontend in that case either), Replacing core classes | Kirby CMS

4

thank you both! i guess for the time being and since it is a non-critical feature i would go with just removing the translations, but i will check the translations() function when i get the time and see what exactly i have to remove there

5

i just checked out your solution. somehow i think translations() only refers to the translations in the languages files (de.php, en.php, etc) but not the actual panel languages. i am logging the arrays inside the function and i am getting only like 6-7 languages, defined by me or plugins.

i am trying to overwrite this function

6 
<?php
// give it a namespace, not required but good practice
namespace cookbook\core;

// import App class
// (so that we don't have to use fully-qualified class names all over the place)
use Kirby\Cms\App as Kirby;
use Kirby\Cms\Languages;
use Kirby\Cms\Translation;
use Kirby\Cms\Translations;
use Kirby\Filesystem\Dir;
use Kirby\Filesystem\F;
use Kirby\Toolkit\Str;

class CustomKirby extends Kirby
{
	public function translations(): Translations
	{
		if ($this->translations instanceof Translations) {
			return $this->translations;
		}
		
		$translations = $this->extensions['translations'] ?? [];
		
		// injects languages translations
		if ($languages = $this->languages()) {
			foreach ($languages as $language) {
				$languageCode         = $language->code();
				$languageTranslations = $language->translations();
				
				// merges language translations with extensions translations
				if (empty($languageTranslations) === false) {
					$translations[$languageCode] = array_merge(
						$translations[$languageCode] ?? [],
						$languageTranslations
					);
				}
			}
		}
		
		return $this->translations = $this->loadTranslations($this->root('i18n:translations'), $translations);
	}
	
	public function loadTranslations(string $root, array $inject = []): Translations
	{
		$collection = new Translations();
		
		foreach (Dir::read($root) as $filename) {
			if (F::extension($filename) !== 'json' || !in_array($filename, ['de.json', 'en.json'])) {
				continue;
			}
			
			$locale      = F::name($filename);
			$translation = Translation::load($locale, $root . '/' . $filename, $inject[$locale] ?? []);
			
			$collection->data[$locale] = $translation;
		}
		
		return $collection;
	}
	
}
7

thank you sonja! this works perfectly :slight_smile: to make it more dynamic i changed the loadTranslations function a bit.

public function loadTranslations(string $root, array $inject = []): Translations
    {
        // for dynamic loading of the langs being used in the panel
        $active_languages = [];
        foreach (kirby()->languages() as $lang) {
            array_push($active_languages, $lang . '.json');
        }

        $collection = new Translations();

        foreach (Dir::read($root) as $filename) {
            if (F::extension($filename) !== 'json' || !in_array($filename, $active_languages)) { // for dynamic loading of the langs being used in the panel
                continue;
            }

            $locale      = F::name($filename);
            $translation = Translation::load($locale, $root . '/' . $filename, $inject[$locale] ?? []);

            $collection->data[$locale] = $translation;
        }

        return $collection;
}