function field_attach_delete

Deletes field data for an existing entity. This deletes all revisions of field data for the entity.

Parameters

$entity_type: The type of $entity; e.g. 'node' or 'user'.

Drupal\Core\Entity\EntityInterface $entity: The entity whose field data to delete.

Related topics

File

drupal/core/modules/field/field.attach.inc, line 1292

Field attach API, allowing entities (nodes, users, ...) to be 'fieldable'.

Code

function field_attach_delete($entity_type, $entity) {
  _field_invoke('delete', $entity_type, $entity);

  // Collect the storage backends used by the fields in the entities.
  $storages = array();
  foreach (field_info_instances($entity_type, $entity
    ->bundle()) as $instance) {
    $field = field_info_field_by_id($instance['field_id']);
    $field_id = $field['id'];
    $storages[$field['storage']['type']][$field_id] = $field_id;
  }

  // Field storage backends delete their data.
  foreach ($storages as $storage => $fields) {
    $storage_info = field_info_storage_types($storage);
    module_invoke($storage_info['module'], 'field_storage_delete', $entity_type, $entity, $fields);
  }

  // Let other modules act on deleting the entity.
  module_invoke_all('field_attach_delete', $entity_type, $entity);
  $entity_info = entity_get_info($entity_type);
  if ($entity_info['field_cache']) {
    cache('field')
      ->delete("field:{$entity_type}:" . $entity
      ->id());
  }
}