Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\language;
Chris@0: 
Chris@0: use Drupal\Core\Entity\EntityInterface;
Chris@0: use Drupal\Core\Field\Plugin\Field\FieldType\LanguageItem;
Chris@0: use Drupal\Core\Language\Language;
Chris@0: 
Chris@0: /**
Chris@0:  * Alternative plugin implementation of the 'language' field type.
Chris@0:  *
Chris@0:  * Replaces the Core 'language' entity field type implementation, changes the
Chris@0:  * default values used.
Chris@0:  *
Chris@0:  * Required settings are:
Chris@0:  *  - target_type: The entity type to reference.
Chris@0:  *
Chris@0:  * @see language_field_info_alter().
Chris@0:  */
Chris@0: class DefaultLanguageItem extends LanguageItem {
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function applyDefaultValue($notify = TRUE) {
Chris@0:     // Default to LANGCODE_NOT_SPECIFIED.
Chris@0:     $langcode = Language::LANGCODE_NOT_SPECIFIED;
Chris@0:     if ($entity = $this->getEntity()) {
Chris@0:       $langcode = $this->getDefaultLangcode($entity);
Chris@0:     }
Chris@0:     // Always notify otherwise default langcode will not be set correctly.
Chris@0:     $this->setValue(['value' => $langcode], TRUE);
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Provides default language code of given entity.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Entity\EntityInterface $entity
Chris@0:    *   The entity whose language code to be loaded.
Chris@0:    *
Chris@0:    * @return string
Chris@0:    *   A string language code.
Chris@0:    */
Chris@0:   public function getDefaultLangcode(EntityInterface $entity) {
Chris@0:     return language_get_default_langcode($entity->getEntityTypeId(), $entity->bundle());
Chris@0:   }
Chris@0: 
Chris@0: }