3 namespace Drupal\entity_reference_revisions;
5 use Drupal\Core\Entity\FieldableEntityInterface;
6 use Drupal\Core\Form\FormStateInterface;
7 use Drupal\Core\Field\FieldDefinitionInterface;
8 use Drupal\Core\Field\EntityReferenceFieldItemList;
9 use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
12 * Defines a item list class for entity reference fields.
14 class EntityReferenceRevisionsFieldItemList extends EntityReferenceFieldItemList implements EntityReferenceFieldItemListInterface {
19 public function referencedEntities() {
20 if (empty($this->list)) {
24 // Collect the IDs of existing entities to load, and directly grab the
25 // "autocreate" entities that are already populated in $item->entity.
26 $target_entities = $ids = array();
27 foreach ($this->list as $delta => $item) {
28 if ($item->hasNewEntity()) {
29 $target_entities[$delta] = $item->entity;
31 elseif ($item->target_revision_id !== NULL) {
32 $ids[$delta] = $item->target_revision_id;
36 // Load and add the existing entities.
38 $target_type = $this->getFieldDefinition()->getSetting('target_type');
39 foreach ($ids as $delta => $target_id) {
40 $entity = \Drupal::entityTypeManager()->getStorage($target_type)->loadRevision($target_id);
42 $target_entities[$delta] = $entity;
45 // Ensure the returned array is ordered by deltas.
46 ksort($target_entities);
49 return $target_entities;
55 public static function processDefaultValue($default_value, FieldableEntityInterface $entity, FieldDefinitionInterface $definition) {
56 $default_value = parent::processDefaultValue($default_value, $entity, $definition);
59 // Convert UUIDs to numeric IDs.
61 foreach ($default_value as $delta => $properties) {
62 if (isset($properties['target_uuid'])) {
63 $uuids[$delta] = $properties['target_uuid'];
67 $target_type = $definition->getSetting('target_type');
68 $entity_ids = \Drupal::entityQuery($target_type)
69 ->condition('uuid', $uuids, 'IN')
71 $entities = \Drupal::entityTypeManager()
72 ->getStorage($target_type)
73 ->loadMultiple($entity_ids);
75 $entity_uuids = array();
76 foreach ($entities as $id => $entity) {
77 $entity_uuids[$entity->uuid()] = $id;
79 foreach ($uuids as $delta => $uuid) {
80 if (isset($entity_uuids[$uuid])) {
81 $default_value[$delta]['target_id'] = $entity_uuids[$uuid];
82 unset($default_value[$delta]['target_uuid']);
85 unset($default_value[$delta]);
90 // Ensure we return consecutive deltas, in case we removed unknown UUIDs.
91 $default_value = array_values($default_value);
94 return $default_value;
100 public function defaultValuesFormSubmit(array $element, array &$form, FormStateInterface $form_state) {
101 $default_value = parent::defaultValuesFormSubmit($element, $form, $form_state);
103 // Convert numeric IDs to UUIDs to ensure config deployability.
105 foreach ($default_value as $delta => $properties) {
106 $ids[] = $properties['target_revision_id'];
110 foreach($ids as $id) {
111 $entities[$id] = \Drupal::entityTypeManager()
112 ->getStorage($this->getSetting('target_type'))
116 foreach ($default_value as $delta => $properties) {
117 $default_value[$delta] = array(
118 'target_uuid' => $entities[$properties['target_revision_id']]->uuid(),
119 'target_revision_id' => $properties['target_revision_id'],
122 return $default_value;