function ContentEntityStorageBase::doPreSave

Overrides EntityStorageBase::doPreSave

File

core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php, line 687

Class

ContentEntityStorageBase

Base class for content entity storage handlers.

Namespace

Code

protected function doPreSave(EntityInterface $entity) {
    
    /** @var \Drupal\Core\Entity\ContentEntityBase $entity */
    // Sync the changes made in the fields array to the internal values array.
    $entity->updateOriginalValues();
    if ($entity->getEntityType()
        ->isRevisionable() && !$entity->isNew() && empty($entity->getLoadedRevisionId())) {
        // Update the loaded revision id for rare special cases when no loaded
        // revision is given when updating an existing entity. This for example
        // happens when calling save() in hook_entity_insert().
        $entity->updateLoadedRevisionId();
    }
    $id = parent::doPreSave($entity);
    if (!$entity->isNew()) {
        // If the ID changed then original can't be loaded, throw an exception
        // in that case.
        if (empty($entity->original) || $entity->id() != $entity->original
            ->id()) {
            throw new EntityStorageException("Update existing '{$this->entityTypeId}' entity while changing the ID is not supported.");
        }
        // Do not allow changing the revision ID when resaving the current
        // revision.
        if (!$entity->isNewRevision() && $entity->getRevisionId() != $entity->getLoadedRevisionId()) {
            throw new EntityStorageException("Update existing '{$this->entityTypeId}' entity revision while changing the revision ID is not supported.");
        }
    }
    return $id;
}