Drupal 8 multilingual tidbits 19: content translation development

You say that calling $langcode = \Drupal::languageManager()->getLanguage(LanguageInterface::TYPE_CONTENT); would give the language object of the current content language? How is that? In my site i'm calling that and getLanguage will only return a language object if the LanguageInterface::TYPE_CONTENT witch is string "language_content" from the list of all languages that this content is translated with, ie array('en', 'sv', 'und', 'zxx') for a site with Swedish and English. I don't se that the array in getLanguage, that $languages = $this->getLanguages(LanguageInterface::STATE_ALL); is returning will include a object with key "language_content". I guess I'm missing something here?

Thanks for this nice introduction, it really helped to get started quickly. I am working with the 8.1.x branch and noticed that $translation->title; becomes $translation->getTitle() (or $translation->get('title')->value;). Probably the same for $node->getTranslation('es')->title->value = 'Spanish title'; that should be replaced by $node->getTranslation('es')->setTitle('Spanish title');.

Hello Gábor,

Thanks for sharing multilingual functionality in detail. I am trying to import nodes automatically from excel file.

if ($node->hasTranslation($fields_values['langcode']) != 1) {
$translation = $node->addTranslation($fields_values['langcode']);

foreach($fields_values as $key => $value) {
$translation->set($key, $value);
}
$translation->save();
}
else {
$node->save();
}
With above code I was able to get node translated in to other language then english but What i found is when try to view those pages in admin/content area all my earlier path alias with english language are gone and it showing me nodes with other language which is not default language of my website. It should show English nodes by default. Do you think anything else is missing in above code.

What I can guess from admin screen is may be i need to add content_translation_source with is field in DB. how to do that while updating node.

A possible problem with that is getTranslation() as we have seen above will just create a new translation if there is none, so you may as well just get back the original language values without a different translation loaded.

I don't believe this is correct based on: https://www.drupal.org/node/2840299

Thanks, Greg

Thanks for the really useful tips, as always!
I think the langcode stuff has updated since you wrote this, as instead of:

<?php $langcode = \Drupal::languageManager()->getCurrentLanguage(LanguageInterface::TYPE_CONTENT); ?>

I think it should be:

<?php $langcode = \Drupal::languageManager()->getCurrentLanguage(LanguageInterface::TYPE_CONTENT)->getId(); ?>

You've got the following code in your term snippet.

$langcode = \Drupal::languageManager()->getCurrentLanguage(LanguageInterface::TYPE_CONTENT);
$translation = $term->getTranslation($langcode);

I believe you should actually be using
$translation = $term->getTranslation($langcode->getId());

I think maybe you overlooked this because you did it differently above

$languages = $node->getTranslationLanguages();
foreach ($languages as $langcode => $language) {
  // The object returned by getTranslation() behaves the same way as $node.
  $translation = $node->getTranslation($langcode);
  $titles[$langcode] = $translation->title;
}

In the first example "... collect titles... $titles[$langcode] = $translation->title...", $translation->title is an object (Drupal\Core\Field\FieldItemList). If you want to get the actual title ('About us'), use $translation->getTitle();

I want to update my title field
using this code : $node->getTranslation('es')->setTitle('Spanish title')->save();

It is not working, execution gets stopped. Please help

This is a great reference page -- thanks!

Is it possible to determine the current language of $node? Please consider the following:

$node = Node::load($nid);
foreach(['en','es'] as $lang) {
$node = $node->getTranslation($lang);
service_function($node);
}
function service_function($node) {
$lang = $node->?????; // determine the language of the node from the caller
}

The alternative is to pass the $lang of the $node as a parameter.

Thanks, Greg

I mean in D8 (at least my version) the things are getting drawn not with PHP but with sth. called twig. Hense, the multilang problems are not limited to the PHP code but extend over this (newly?) invented language . If I need something drawn I need to fetch the lang code and translations in twig, not in php (unless I went headless mode). Do you have an idea how to do that in the right way ?