class FieldTranslationSqlStorageTest

class FieldTranslationSqlStorageTest extends EntityLanguageTestBase {
    
    /**
     * Tests field SQL storage.
     */
    public function testFieldSqlStorage() : void {
        $entity_type = 'entity_test_mul';
        $controller = $this->entityTypeManager
            ->getStorage($entity_type);
        $values = [
            $this->fieldName => $this->randomMachineName(),
            $this->untranslatableFieldName => $this->randomMachineName(),
        ];
        $entity = $controller->create($values);
        $entity->save();
        // Tests that when changing language field language codes are still correct.
        $langcode = $this->langcodes[0];
        $entity->langcode->value = $langcode;
        $entity->save();
        $this->assertFieldStorageLangcode($entity, 'Field language successfully changed from language neutral.');
        $langcode = $this->langcodes[1];
        $entity->langcode->value = $langcode;
        $entity->save();
        $this->assertFieldStorageLangcode($entity, 'Field language successfully changed.');
        $langcode = LanguageInterface::LANGCODE_NOT_SPECIFIED;
        $entity->langcode->value = $langcode;
        $entity->save();
        $this->assertFieldStorageLangcode($entity, 'Field language successfully changed to language neutral.');
        // Test that after switching field translatability things keep working as
        // before.
        $this->toggleFieldTranslatability($entity_type, $entity_type);
        $entity = $this->reloadEntity($entity);
        foreach ([
            $this->fieldName,
            $this->untranslatableFieldName,
        ] as $field_name) {
            $this->assertEquals($values[$field_name], $entity->get($field_name)->value, 'Field language works as expected after switching translatability.');
        }
        // Test that after disabling field translatability translated values are not
        // loaded.
        $this->toggleFieldTranslatability($entity_type, $entity_type);
        $entity = $this->reloadEntity($entity);
        $entity->langcode->value = $this->langcodes[0];
        $translation = $entity->addTranslation($this->langcodes[1]);
        $translated_value = $this->randomMachineName();
        $translation->get($this->fieldName)->value = $translated_value;
        $translation->save();
        $this->toggleFieldTranslatability($entity_type, $entity_type);
        $entity = $this->reloadEntity($entity);
        $this->assertEquals($values[$this->fieldName], $entity->getTranslation($this->langcodes[1])
            ->get($this->fieldName)->value, 'Existing field translations are not loaded for untranslatable fields.');
    }
    
    /**
     * Checks whether field languages are correctly stored for the given entity.
     *
     * @param \Drupal\Core\Entity\FieldableEntityInterface $entity
     *   The entity fields are attached to.
     * @param string $message
     *   (optional) A message to display with the assertion.
     *
     * @internal
     */
    protected function assertFieldStorageLangcode(FieldableEntityInterface $entity, string $message = '') : void {
        $status = TRUE;
        $entity_type = $entity->getEntityTypeId();
        $id = $entity->id();
        $langcode = $entity->getUntranslated()
            ->language()
            ->getId();
        $fields = [
            $this->fieldName,
            $this->untranslatableFieldName,
        ];
        
        /** @var \Drupal\Core\Entity\Sql\DefaultTableMapping $table_mapping */
        $table_mapping = \Drupal::entityTypeManager()->getStorage($entity_type)
            ->getTableMapping();
        foreach ($fields as $field_name) {
            $field_storage = FieldStorageConfig::loadByName($entity_type, $field_name);
            $table = $table_mapping->getDedicatedDataTableName($field_storage);
            $record = \Drupal::database()->select($table, 'f')
                ->fields('f')
                ->condition('f.entity_id', $id)
                ->condition('f.revision_id', $id)
                ->execute()
                ->fetchObject();
            if ($record->langcode != $langcode) {
                $status = FALSE;
                break;
            }
        }
        $this->assertTrue($status, $message);
    }

}