Filter child pages by available translations

Kirby 2 Solved ✅
9

Here’s the filter incorporating @texnixe’s helpful input:

// Anything that matches a given language attribute
collection::$filters['languageIs'] = function($collection, $field, $value) {

  foreach($collection->data as $key => $item) {
    if (collection::extractValue($item->content()->language(), $field) != $value) {
      unset($collection->$key);
    }
  }

  return $collection;

};

Add this to your site/plugin/filters.php and use the following in your templates:

$articles = $page->children()->visible()->filterBy('code', 'languageIs', 'ja');

Thanks,
Moritz