In my project I have nodes with paragraphs. When I use this service to change the default language, the translations are lost.
I have reproduced this issue with:
- Content type with paragraphs field
- Paragraph bundles are translatable.
- Paragraph bundles contains translatable text long with format fields.
- Content has spanish as source language , and english as translation.
Code to update the language (run through drush php-script):
$node = \Drupal::entityTypeManager()->getStorage('node')->load(1234);
// Change language to english, spanish passes to be a translation.
\Drupal::service('entity_change_default_language')->update($node, 'en', TRUE, ['es']);
When the values of the entity are updated , do not save them. It can be done by dropping this line. The translation is saved anyways at the end of the update function, because when content is saved, Drupal also saves the translations.
Active
1.0
Code
I've just created a MR that solves the problem and switches successfully the languaqe. Ready to review.