Language name of translated node

Question

For a teaser view mode I want to display the language of the content. I can get the langcode in twig with: {{ node.langcode.value }} But how can I display the language name? In the field display I get only the string with "Language English", but I want only the name without any other thinks like "Language ...".

One way is to use preprocess node:

function mytheme_preprocess_node(&$variables) {
  $variables['lang_name'] = $variables['node']->language()->getName()
}

in the template file:

{{ lang_name }}

Is there a pure twig solution possible?

Answer 1

If you want to use the method language() in Twig

{{ node.language.name }}

you have to add it to the whitelist of the Twig sandbox policy in settings.php:

$settings['twig_sandbox_whitelisted_methods'] = [
  'id',
  'label',
  'bundle',
  'get',
  '__toString',
  'toString',
  'language',
];

Answer 2

Use {{ node.language().getName() }} or {{ node.language().name }} (might not work).

With any object, like a node, you can call methods / get properties in twig by just using a '.' as the PhP ->. Generally, getXXX() can be shortened to XXX. Occationally, you may need to add a .value or .toString() on the end to convert from the format returned to string.

Here's the formal twig reference for this. The implementation notes give some guidance on how short names work.