3 namespace Drupal\entity_reference_revisions;
5 use Drupal\Core\Entity\FieldableEntityInterface;
6 use Drupal\Core\Field\FieldItemListInterface;
7 use Drupal\Core\Field\FieldItemListTranslationChangesInterface;
8 use Drupal\Core\Form\FormStateInterface;
9 use Drupal\Core\Field\FieldDefinitionInterface;
10 use Drupal\Core\Field\EntityReferenceFieldItemList;
11 use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
14 * Defines a item list class for entity reference fields.
16 class EntityReferenceRevisionsFieldItemList extends EntityReferenceFieldItemList implements EntityReferenceFieldItemListInterface {
21 public function referencedEntities() {
22 if (empty($this->list)) {
26 // Collect the IDs of existing entities to load, and directly grab the
27 // "autocreate" entities that are already populated in $item->entity.
28 $target_entities = $ids = array();
29 foreach ($this->list as $delta => $item) {
30 if ($item->hasNewEntity()) {
31 $target_entities[$delta] = $item->entity;
33 elseif ($item->target_revision_id !== NULL) {
34 $ids[$delta] = $item->target_revision_id;
38 // Load and add the existing entities.
40 $target_type = $this->getFieldDefinition()->getSetting('target_type');
41 foreach ($ids as $delta => $target_id) {
42 $entity = \Drupal::entityTypeManager()->getStorage($target_type)->loadRevision($target_id);
44 $target_entities[$delta] = $entity;
47 // Ensure the returned array is ordered by deltas.
48 ksort($target_entities);
51 return $target_entities;
57 public static function processDefaultValue($default_value, FieldableEntityInterface $entity, FieldDefinitionInterface $definition) {
58 $default_value = parent::processDefaultValue($default_value, $entity, $definition);
61 // Convert UUIDs to numeric IDs.
63 foreach ($default_value as $delta => $properties) {
64 if (isset($properties['target_uuid'])) {
65 $uuids[$delta] = $properties['target_uuid'];
69 $target_type = $definition->getSetting('target_type');
70 $entity_ids = \Drupal::entityQuery($target_type)
71 ->condition('uuid', $uuids, 'IN')
73 $entities = \Drupal::entityTypeManager()
74 ->getStorage($target_type)
75 ->loadMultiple($entity_ids);
77 $entity_uuids = array();
78 foreach ($entities as $id => $entity) {
79 $entity_uuids[$entity->uuid()] = $id;
81 foreach ($uuids as $delta => $uuid) {
82 if (isset($entity_uuids[$uuid])) {
83 $default_value[$delta]['target_id'] = $entity_uuids[$uuid];
84 unset($default_value[$delta]['target_uuid']);
87 unset($default_value[$delta]);
92 // Ensure we return consecutive deltas, in case we removed unknown UUIDs.
93 $default_value = array_values($default_value);
96 return $default_value;
102 public function defaultValuesFormSubmit(array $element, array &$form, FormStateInterface $form_state) {
103 $default_value = parent::defaultValuesFormSubmit($element, $form, $form_state);
105 // Convert numeric IDs to UUIDs to ensure config deployability.
107 foreach ($default_value as $delta => $properties) {
108 $ids[] = $properties['target_revision_id'];
112 foreach($ids as $id) {
113 $entities[$id] = \Drupal::entityTypeManager()
114 ->getStorage($this->getSetting('target_type'))
118 foreach ($default_value as $delta => $properties) {
119 $default_value[$delta] = array(
120 'target_uuid' => $entities[$properties['target_revision_id']]->uuid(),
121 'target_revision_id' => $properties['target_revision_id'],
124 return $default_value;
130 public function hasAffectingChanges(FieldItemListInterface $original_items, $langcode) {
131 // If there are fewer items, then it is a change.
132 if (count($this) < count($original_items)) {
136 foreach ($this as $delta => $item) {
137 // If this is a different entity, then it is an affecting change.
138 if (!$original_items->offsetExists($delta) || $item->target_id != $original_items[$delta]->target_id) {
141 // If it is the same entity, only consider it as having affecting changes
142 // if the target entity itself has changes.
143 if ($item->entity && $item->entity->hasTranslation($langcode) && $item->entity->getTranslation($langcode)->hasTranslationChanges()) {