function hook_ENTITY_TYPE_predelete

Act before entity deletion of a particular entity type.

Parameters

\Drupal\Core\Entity\EntityInterface $entity: The entity object for the entity that is about to be deleted.

See also

hook_entity_predelete()

Related topics

File

core/lib/Drupal/Core/Entity/entity.api.php, line 1410

Code

function hook_ENTITY_TYPE_predelete(\Drupal\Core\Entity\EntityInterface $entity) {
  $connection = \Drupal::database();
  // Count references to this entity in a custom table before they are removed
  // upon entity deletion.
  $id = $entity->id();
  $type = $entity->getEntityTypeId();
  $count = \Drupal::database()->select('example_entity_data')
    ->condition('type', $type)
    ->condition('id', $id)
    ->countQuery()
    ->execute()
    ->fetchField();
  // Log the count in a table that records this statistic for deleted entities.
  $connection->merge('example_deleted_entity_statistics')
    ->key([
    'type' => $type,
    'id' => $id,
  ])
    ->fields([
    'count' => $count,
  ])
    ->execute();
}