public function RelationField::preSave in Relation 8

Defines custom presave behavior for field values.

This method is called during the process of saving an entity, just before item values are written into storage.

Overrides FieldItemList::preSave

See also

\Drupal\Core\Field\FieldItemInterface::preSave()

File

relation_endpoint/src/Type/RelationField.php, line 17

Contains \Drupal\relation_endpoint\Type\RelationField.

Class

RelationField

Namespace

Drupal\relation_endpoint\Type

Code

public function preSave() {

  // We need r_index here because EntityFieldQuery can't query on deltas.
  if (isset($this->list)) {
    foreach ($this->list as $delta => &$item) {
      $item->r_index = $delta;
    }
  }
}