Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\content_moderation;
Chris@0: 
Chris@0: use Drupal\Core\Entity\ContentEntityInterface;
Chris@0: use Drupal\Core\Entity\EntityInterface;
Chris@4: use Drupal\Core\Entity\EntityPublishedInterface;
Chris@0: use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
Chris@0: use Drupal\Core\Entity\EntityTypeInterface;
Chris@0: use Drupal\Core\Entity\EntityTypeManagerInterface;
Chris@0: use Drupal\Core\TypedData\TranslatableInterface;
Chris@4: use Drupal\Core\StringTranslation\StringTranslationTrait;
Chris@0: 
Chris@0: /**
Chris@0:  * General service for moderation-related questions about Entity API.
Chris@0:  */
Chris@0: class ModerationInformation implements ModerationInformationInterface {
Chris@0: 
Chris@4:   use StringTranslationTrait;
Chris@4: 
Chris@0:   /**
Chris@0:    * The entity type manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Entity\EntityTypeManagerInterface
Chris@0:    */
Chris@0:   protected $entityTypeManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * The bundle information service.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
Chris@0:    */
Chris@0:   protected $bundleInfo;
Chris@0: 
Chris@0:   /**
Chris@0:    * Creates a new ModerationInformation instance.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
Chris@0:    *   The entity type manager.
Chris@0:    * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $bundle_info
Chris@0:    *   The bundle information service.
Chris@0:    */
Chris@0:   public function __construct(EntityTypeManagerInterface $entity_type_manager, EntityTypeBundleInfoInterface $bundle_info) {
Chris@0:     $this->entityTypeManager = $entity_type_manager;
Chris@0:     $this->bundleInfo = $bundle_info;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function isModeratedEntity(EntityInterface $entity) {
Chris@0:     if (!$entity instanceof ContentEntityInterface) {
Chris@0:       return FALSE;
Chris@0:     }
Chris@0: 
Chris@0:     return $this->shouldModerateEntitiesOfBundle($entity->getEntityType(), $entity->bundle());
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function canModerateEntitiesOfEntityType(EntityTypeInterface $entity_type) {
Chris@0:     return $entity_type->hasHandlerClass('moderation');
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function shouldModerateEntitiesOfBundle(EntityTypeInterface $entity_type, $bundle) {
Chris@0:     if ($this->canModerateEntitiesOfEntityType($entity_type)) {
Chris@0:       $bundles = $this->bundleInfo->getBundleInfo($entity_type->id());
Chris@0:       return isset($bundles[$bundle]['workflow']);
Chris@0:     }
Chris@0:     return FALSE;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getLatestRevision($entity_type_id, $entity_id) {
Chris@0:     if ($latest_revision_id = $this->getLatestRevisionId($entity_type_id, $entity_id)) {
Chris@0:       return $this->entityTypeManager->getStorage($entity_type_id)->loadRevision($latest_revision_id);
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getLatestRevisionId($entity_type_id, $entity_id) {
Chris@0:     if ($storage = $this->entityTypeManager->getStorage($entity_type_id)) {
Chris@0:       $result = $storage->getQuery()
Chris@0:         ->latestRevision()
Chris@0:         ->condition($this->entityTypeManager->getDefinition($entity_type_id)->getKey('id'), $entity_id)
Chris@0:         // No access check is performed here since this is an API function and
Chris@0:         // should return the same ID regardless of the current user.
Chris@0:         ->accessCheck(FALSE)
Chris@0:         ->execute();
Chris@0:       if ($result) {
Chris@0:         return key($result);
Chris@0:       }
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getDefaultRevisionId($entity_type_id, $entity_id) {
Chris@0:     if ($storage = $this->entityTypeManager->getStorage($entity_type_id)) {
Chris@0:       $result = $storage->getQuery()
Chris@0:         ->currentRevision()
Chris@0:         ->condition($this->entityTypeManager->getDefinition($entity_type_id)->getKey('id'), $entity_id)
Chris@0:         // No access check is performed here since this is an API function and
Chris@0:         // should return the same ID regardless of the current user.
Chris@0:         ->accessCheck(FALSE)
Chris@0:         ->execute();
Chris@0:       if ($result) {
Chris@0:         return key($result);
Chris@0:       }
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getAffectedRevisionTranslation(ContentEntityInterface $entity) {
Chris@0:     foreach ($entity->getTranslationLanguages() as $language) {
Chris@0:       $translation = $entity->getTranslation($language->getId());
Chris@0:       if (!$translation->isDefaultRevision() && $translation->isRevisionTranslationAffected()) {
Chris@0:         return $translation;
Chris@0:       }
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function isLatestRevision(ContentEntityInterface $entity) {
Chris@0:     return $entity->getRevisionId() == $this->getLatestRevisionId($entity->getEntityTypeId(), $entity->id());
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function hasPendingRevision(ContentEntityInterface $entity) {
Chris@0:     $result = FALSE;
Chris@0:     if ($this->isModeratedEntity($entity)) {
Chris@0:       /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
Chris@0:       $storage = $this->entityTypeManager->getStorage($entity->getEntityTypeId());
Chris@0:       $latest_revision_id = $storage->getLatestTranslationAffectedRevisionId($entity->id(), $entity->language()->getId());
Chris@0:       $default_revision_id = $entity->isDefaultRevision() && !$entity->isNewRevision() && ($revision_id = $entity->getRevisionId()) ?
Chris@0:         $revision_id : $this->getDefaultRevisionId($entity->getEntityTypeId(), $entity->id());
Chris@0:       if ($latest_revision_id != $default_revision_id) {
Chris@0:         /** @var \Drupal\Core\Entity\ContentEntityInterface $latest_revision */
Chris@0:         $latest_revision = $storage->loadRevision($latest_revision_id);
Chris@0:         $result = !$latest_revision->wasDefaultRevision();
Chris@0:       }
Chris@0:     }
Chris@0:     return $result;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function isLiveRevision(ContentEntityInterface $entity) {
Chris@0:     $workflow = $this->getWorkflowForEntity($entity);
Chris@0:     return $this->isLatestRevision($entity)
Chris@0:       && $entity->isDefaultRevision()
Chris@0:       && $entity->moderation_state->value
Chris@0:       && $workflow->getTypePlugin()->getState($entity->moderation_state->value)->isPublishedState();
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function isDefaultRevisionPublished(ContentEntityInterface $entity) {
Chris@0:     $workflow = $this->getWorkflowForEntity($entity);
Chris@0:     $default_revision = \Drupal::entityTypeManager()->getStorage($entity->getEntityTypeId())->load($entity->id());
Chris@4:     // If no default revision could be loaded, the entity has not yet been
Chris@4:     // saved. In this case the moderation_state of the unsaved entity can be
Chris@4:     // used, since once saved it will become the default.
Chris@4:     $default_revision = $default_revision  ?: $entity;
Chris@0: 
Chris@0:     // Ensure we are checking all translations of the default revision.
Chris@0:     if ($default_revision instanceof TranslatableInterface && $default_revision->isTranslatable()) {
Chris@0:       // Loop through each language that has a translation.
Chris@0:       foreach ($default_revision->getTranslationLanguages() as $language) {
Chris@0:         // Load the translated revision.
Chris@0:         $translation = $default_revision->getTranslation($language->getId());
Chris@0:         // If the moderation state is empty, it was not stored yet so no point
Chris@0:         // in doing further work.
Chris@0:         $moderation_state = $translation->moderation_state->value;
Chris@0:         if (!$moderation_state) {
Chris@0:           continue;
Chris@0:         }
Chris@0:         // Return TRUE if a translation with a published state is found.
Chris@0:         if ($workflow->getTypePlugin()->getState($moderation_state)->isPublishedState()) {
Chris@0:           return TRUE;
Chris@0:         }
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     return $workflow->getTypePlugin()->getState($default_revision->moderation_state->value)->isPublishedState();
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getWorkflowForEntity(ContentEntityInterface $entity) {
Chris@0:     $bundles = $this->bundleInfo->getBundleInfo($entity->getEntityTypeId());
Chris@0:     if (isset($bundles[$entity->bundle()]['workflow'])) {
Chris@0:       return $this->entityTypeManager->getStorage('workflow')->load($bundles[$entity->bundle()]['workflow']);
Chris@0:     };
Chris@0:     return NULL;
Chris@0:   }
Chris@0: 
Chris@4:   /**
Chris@4:    * {@inheritdoc}
Chris@4:    */
Chris@4:   public function getUnsupportedFeatures(EntityTypeInterface $entity_type) {
Chris@4:     $features = [];
Chris@4:     // Test if entity is publishable.
Chris@4:     if (!$entity_type->entityClassImplements(EntityPublishedInterface::class)) {
Chris@4:       $features['publishing'] = $this->t("@entity_type_plural_label do not support publishing statuses. For example, even after transitioning from a published workflow state to an unpublished workflow state they will still be visible to site visitors.", ['@entity_type_plural_label' => $entity_type->getCollectionLabel()]);
Chris@4:     }
Chris@4:     return $features;
Chris@4:   }
Chris@4: 
Chris@0: }