Make library items translatable.
function paragraphs_library_update_8001() {
\Drupal::service('entity_type.manager')
->clearCachedDefinitions();
// Load all library items and store their values in memory.
$library_values = \Drupal::database()
->query('SELECT * FROM {paragraphs_library_item}')
->fetchAll(PDO::FETCH_ASSOC);
// Now, truncate the tables to delete the data without invoking APIs that
// would also delete the referenced paragraphs.
\Drupal::database()
->truncate('paragraphs_library_item')
->execute();
\Drupal::database()
->truncate('paragraphs_library_item_revision')
->execute();
// Make the entity type translatable.
$entity_definition_update_manager = \Drupal::entityDefinitionUpdateManager();
$entity_type = $entity_definition_update_manager
->getEntityType('paragraphs_library_item');
//$entity_definition_update_manager->uninstallEntityType($entity_type);
$entity_type
->set('translatable', TRUE);
$keys = $entity_type
->getKeys();
$keys['langcode'] = 'langcode';
$entity_type
->set('entity_keys', $keys);
//$entity_type->setHandlerClass('storage_schema', LibraryItemStorageSchema::class);
$entity_definition_update_manager
->updateEntityType($entity_type);
$langcode_field = BaseFieldDefinition::create('language')
->setLabel(t('Language'))
->setDisplayOptions('view', [
'region' => 'hidden',
])
->setDisplayOptions('form', [
'type' => 'language_select',
'weight' => 2,
])
->setRevisionable(TRUE)
->setTranslatable(TRUE);
$default_langcode_field = BaseFieldDefinition::create('boolean')
->setLabel(t('Default translation'))
->setDescription(t('A flag indicating whether this is the default translation.'))
->setTranslatable(TRUE)
->setRevisionable(TRUE)
->setDefaultValue(TRUE);
$entity_definition_update_manager
->installFieldStorageDefinition('langcode', $entity_type
->id(), 'paragraphs_library', $langcode_field);
$entity_definition_update_manager
->installFieldStorageDefinition('default_langcode', $entity_type
->id(), 'paragraphs_library', $default_langcode_field);
\Drupal::entityTypeManager()
->clearCachedDefinitions();
foreach ($library_values as $library_value) {
$library_value['paragraphs'] = [
'target_id' => $library_value['paragraphs__target_id'],
'target_revision_id' => $library_value['paragraphs__target_revision_id'],
];
unset($library_value['paragraphs__target_id']);
unset($library_value['paragraphs__target_revision_id']);
LibraryItem::create($library_value)
->save();
}
}