Added Entity and Entity Reference Revisions which got dropped somewhere along the...

[yaffs-website] / web / modules / contrib / entity_reference_revisions / src / EntityReferenceRevisionsFieldItemList.php

diff --git a/web/modules/contrib/entity_reference_revisions/src/EntityReferenceRevisionsFieldItemList.php b/web/modules/contrib/entity_reference_revisions/src/EntityReferenceRevisionsFieldItemList.php
new file mode 100644 (file)
index 0000000..983e7be
--- /dev/null
+++ b/web/modules/contrib/entity_reference_revisions/src/EntityReferenceRevisionsFieldItemList.php
@@ -0,0 +1,151 @@
+<?php
+
+namespace Drupal\entity_reference_revisions;
+
+use Drupal\Core\Entity\FieldableEntityInterface;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\FieldItemListTranslationChangesInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Field\FieldDefinitionInterface;
+use Drupal\Core\Field\EntityReferenceFieldItemList;
+use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
+
+/**
+ * Defines a item list class for entity reference fields.
+ */
+class EntityReferenceRevisionsFieldItemList extends EntityReferenceFieldItemList implements EntityReferenceFieldItemListInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function referencedEntities() {
+    if (empty($this->list)) {
+      return array();
+    }
+
+    // Collect the IDs of existing entities to load, and directly grab the
+    // "autocreate" entities that are already populated in $item->entity.
+    $target_entities = $ids = array();
+    foreach ($this->list as $delta => $item) {
+      if ($item->hasNewEntity()) {
+        $target_entities[$delta] = $item->entity;
+      }
+      elseif ($item->target_revision_id !== NULL) {
+        $ids[$delta] = $item->target_revision_id;
+      }
+    }
+
+    // Load and add the existing entities.
+    if ($ids) {
+      $target_type = $this->getFieldDefinition()->getSetting('target_type');
+      foreach ($ids as $delta => $target_id) {
+        $entity = \Drupal::entityTypeManager()->getStorage($target_type)->loadRevision($target_id);
+        if ($entity) {
+          $target_entities[$delta] = $entity;
+        }
+      }
+      // Ensure the returned array is ordered by deltas.
+      ksort($target_entities);
+    }
+
+    return $target_entities;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function processDefaultValue($default_value, FieldableEntityInterface $entity, FieldDefinitionInterface $definition) {
+    $default_value = parent::processDefaultValue($default_value, $entity, $definition);
+
+    if ($default_value) {
+      // Convert UUIDs to numeric IDs.
+      $uuids = array();
+      foreach ($default_value as $delta => $properties) {
+        if (isset($properties['target_uuid'])) {
+          $uuids[$delta] = $properties['target_uuid'];
+        }
+      }
+      if ($uuids) {
+        $target_type = $definition->getSetting('target_type');
+        $entity_ids = \Drupal::entityQuery($target_type)
+          ->condition('uuid', $uuids, 'IN')
+          ->execute();
+        $entities = \Drupal::entityTypeManager()
+          ->getStorage($target_type)
+          ->loadMultiple($entity_ids);
+
+        $entity_uuids = array();
+        foreach ($entities as $id => $entity) {
+          $entity_uuids[$entity->uuid()] = $id;
+        }
+        foreach ($uuids as $delta => $uuid) {
+          if (isset($entity_uuids[$uuid])) {
+            $default_value[$delta]['target_id'] = $entity_uuids[$uuid];
+            unset($default_value[$delta]['target_uuid']);
+          }
+          else {
+            unset($default_value[$delta]);
+          }
+        }
+      }
+
+      // Ensure we return consecutive deltas, in case we removed unknown UUIDs.
+      $default_value = array_values($default_value);
+    }
+
+    return $default_value;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultValuesFormSubmit(array $element, array &$form, FormStateInterface $form_state) {
+    $default_value = parent::defaultValuesFormSubmit($element, $form, $form_state);
+
+    // Convert numeric IDs to UUIDs to ensure config deployability.
+    $ids = array();
+    foreach ($default_value as $delta => $properties) {
+      $ids[] = $properties['target_revision_id'];
+    }
+
+    $entities = array();
+    foreach($ids as $id) {
+      $entities[$id] = \Drupal::entityTypeManager()
+        ->getStorage($this->getSetting('target_type'))
+        ->loadRevision($id);
+    }
+
+    foreach ($default_value as $delta => $properties) {
+      $default_value[$delta] = array(
+        'target_uuid' => $entities[$properties['target_revision_id']]->uuid(),
+        'target_revision_id' => $properties['target_revision_id'],
+      );
+    }
+    return $default_value;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function hasAffectingChanges(FieldItemListInterface $original_items, $langcode) {
+    // If there are fewer items, then it is a change.
+    if (count($this) < count($original_items)) {
+      return TRUE;
+    }
+
+    foreach ($this as $delta => $item) {
+      // If this is a different entity, then it is an affecting change.
+      if (!$original_items->offsetExists($delta) || $item->target_id != $original_items[$delta]->target_id) {
+        return TRUE;
+      }
+      // If it is the same entity, only consider it as having affecting changes
+      // if the target entity itself has changes.
+      if ($item->entity && $item->entity->hasTranslation($langcode) && $item->entity->getTranslation($langcode)->hasTranslationChanges()) {
+        return TRUE;
+      }
+    }
+
+    return FALSE;
+  }
+
+}