protected function CustomBlockStorageController::preSaveRevision

Overrides \Drupal\Core\Entity\DatabaseStorageController::preSaveRevision().

Overrides DatabaseStorageController::preSaveRevision

File

drupal/core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockStorageController.php, line 24

Contains \Drupal\custom_block\CustomBlockStorageController.

Class

CustomBlockStorageController

Controller class for custom blocks.

Namespace

Code

protected function preSaveRevision(\stdClass $record, EntityInterface $entity) {
  if ($entity
    ->isNewRevision()) {

    // When inserting either a new custom block or a new custom_block
    // revision, $entity->log must be set because {block_custom_revision}.log
    // is a text column and therefore cannot have a default value. However,
    // it might not be set at this point (for example, if the user submitting
    // the form does not have permission to create revisions), so we ensure
    // that it is at least an empty string in that case.
    // @todo: Make the {block_custom_revision}.log column nullable so that we
    // can remove this check.
    if (!isset($record->log)) {
      $record->log = '';
    }
  }
  elseif (isset($entity->original) && (!isset($record->log) || $record->log === '')) {

    // If we are updating an existing custom_block without adding a new
    // revision, we need to make sure $entity->log is reset whenever it is
    // empty. Therefore, this code allows us to avoid clobbering an existing
    // log entry with an empty one.
    $record->log = $entity->original->log->value;
  }
}