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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\field\FieldUninstallValidator. | |
| */ | |
| namespace Drupal\field; | |
| use Drupal\Core\Entity\EntityManagerInterface; | |
| use Drupal\Core\Extension\ModuleUninstallValidatorInterface; | |
| use Drupal\Core\StringTranslation\StringTranslationTrait; | |
| use Drupal\Core\StringTranslation\TranslationInterface; | |
| /** | |
| * Prevents uninstallation of modules providing active field storage. | |
| */ | |
| class FieldUninstallValidator implements ModuleUninstallValidatorInterface { | |
| use StringTranslationTrait; | |
| /** | |
| * The field storage config storage. | |
| * | |
| * @var \Drupal\Core\Config\Entity\ConfigEntityStorageInterface | |
| */ | |
| protected $fieldStorageConfigStorage; | |
| /** | |
| * Constructs a new FieldUninstallValidator. | |
| * | |
| * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager | |
| * The entity manager. | |
| * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation | |
| * The string translation service. | |
| */ | |
| public function __construct(EntityManagerInterface $entity_manager, TranslationInterface $string_translation) { | |
| $this->fieldStorageConfigStorage = $entity_manager->getStorage('field_storage_config'); | |
| $this->stringTranslation = $string_translation; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function validate($module) { | |
| $reasons = []; | |
| if ($field_storages = $this->getFieldStoragesByModule($module)) { | |
| // Provide an explanation message (only mention pending deletions if there | |
| // remain no actual, non-deleted fields.) | |
| $non_deleted = FALSE; | |
| foreach ($field_storages as $field_storage) { | |
| if (!$field_storage->isDeleted()) { | |
| $non_deleted = TRUE; | |
| break; | |
| } | |
| } | |
| if ($non_deleted) { | |
| $reasons[] = $this->t('Fields type(s) in use'); | |
| } | |
| else { | |
| $reasons[] = $this->t('Fields pending deletion'); | |
| } | |
| } | |
| return $reasons; | |
| } | |
| /** | |
| * Returns all field storages for a specified module. | |
| * | |
| * @param string $module | |
| * The module to filter field storages by. | |
| * | |
| * @return \Drupal\field\FieldStorageConfigInterface[] | |
| * An array of field storages for a specified module. | |
| */ | |
| protected function getFieldStoragesByModule($module) { | |
| return $this->fieldStorageConfigStorage->loadByProperties(['module' => $module, 'include_deleted' => TRUE]); | |
| } | |
| } |