class EntityReferenceFieldItemList

Same name and namespace in other branches
  1. 11.x core/lib/Drupal/Core/Field/EntityReferenceFieldItemList.php \Drupal\Core\Field\EntityReferenceFieldItemList
  2. 9 core/lib/Drupal/Core/Field/EntityReferenceFieldItemList.php \Drupal\Core\Field\EntityReferenceFieldItemList
  3. 8.9.x core/lib/Drupal/Core/Field/EntityReferenceFieldItemList.php \Drupal\Core\Field\EntityReferenceFieldItemList

Defines an item list class for entity reference fields.

Hierarchy

Expanded class hierarchy of EntityReferenceFieldItemList

5 files declare their use of EntityReferenceFieldItemList
ComputedReferenceTestFieldItemList.php in core/modules/system/tests/modules/entity_test/src/Plugin/Field/ComputedReferenceTestFieldItemList.php
EntityReferenceItem.php in core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
EntityReferenceItemSubclass.php in core/modules/media_library/tests/modules/media_library_test/src/Plugin/Field/FieldType/EntityReferenceItemSubclass.php
FileFieldItemList.php in core/modules/file/src/Plugin/Field/FieldType/FileFieldItemList.php
MediaLibraryFieldWidgetOpener.php in core/modules/media_library/src/MediaLibraryFieldWidgetOpener.php

File

core/lib/Drupal/Core/Field/EntityReferenceFieldItemList.php, line 11

Namespace

Drupal\Core\Field
View source
class EntityReferenceFieldItemList extends FieldItemList implements EntityReferenceFieldItemListInterface {
  
  /**
   * {@inheritdoc}
   */
  public function getConstraints() {
    $constraints = parent::getConstraints();
    $constraint_manager = $this->getTypedDataManager()
      ->getValidationConstraintManager();
    $constraints[] = $constraint_manager->create('ValidReference', []);
    return $constraints;
  }
  
  /**
   * {@inheritdoc}
   */
  public function referencedEntities() {
    if ($this->isEmpty()) {
      return [];
    }
    // Collect the IDs of existing entities to load, and directly grab the
    // "autocreate" entities that are already populated in $item->entity.
    $target_entities = $ids = [];
    foreach ($this->list as $delta => $item) {
      if ($item->target_id !== NULL) {
        $ids[$delta] = $item->target_id;
      }
      elseif ($item->hasNewEntity()) {
        $target_entities[$delta] = $item->entity;
      }
    }
    // Load and add the existing entities.
    if ($ids) {
      $target_type = $this->getFieldDefinition()
        ->getSetting('target_type');
      $entities = \Drupal::entityTypeManager()->getStorage($target_type)
        ->loadMultiple($ids);
      foreach ($ids as $delta => $target_id) {
        if (isset($entities[$target_id])) {
          $target_entities[$delta] = $entities[$target_id];
        }
      }
      // 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.
      $uuids = [];
      foreach ($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)->accessCheck(TRUE)
          ->condition('uuid', $uuids, 'IN')
          ->execute();
        $entities = \Drupal::entityTypeManager()->getStorage($target_type)
          ->loadMultiple($entity_ids);
        $entity_uuids = [];
        foreach ($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.
    $ids = [];
    foreach ($default_value as $delta => $properties) {
      if (isset($properties['entity']) && $properties['entity']->isNew()) {
        // This may be a newly created term.
        $properties['entity']->save();
        $default_value[$delta]['target_id'] = $properties['entity']->id();
        unset($default_value[$delta]['entity']);
      }
      $ids[] = $default_value[$delta]['target_id'];
    }
    $entities = \Drupal::entityTypeManager()->getStorage($this->getSetting('target_type'))
      ->loadMultiple($ids);
    foreach ($default_value as $delta => $properties) {
      unset($default_value[$delta]['target_id']);
      $default_value[$delta]['target_uuid'] = $entities[$properties['target_id']]->uuid();
    }
    return $default_value;
  }

}

Members

Title Sort descending Modifiers Object type Summary Overriden Title Overrides
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function #[\ReturnTypeWillChange] 2
EntityReferenceFieldItemList::defaultValuesFormSubmit public function Overrides FieldItemList::defaultValuesFormSubmit
EntityReferenceFieldItemList::getConstraints public function Overrides FieldItemList::getConstraints
EntityReferenceFieldItemList::processDefaultValue public static function Overrides FieldItemList::processDefaultValue
EntityReferenceFieldItemList::referencedEntities public function Overrides EntityReferenceFieldItemListInterface::referencedEntities
FieldItemList::$langcode protected property The langcode of the field values held in the object.
FieldItemList::$list protected property Numerically indexed array of field items. Overrides ItemList::$list 1
FieldItemList::access public function Overrides AccessibleInterface::access 1
FieldItemList::applyDefaultValue public function Overrides TypedData::applyDefaultValue
FieldItemList::createItem protected function Overrides ItemList::createItem
FieldItemList::defaultAccess public function Overrides FieldItemListInterface::defaultAccess 3
FieldItemList::defaultValuesForm public function Overrides FieldItemListInterface::defaultValuesForm 2
FieldItemList::defaultValuesFormValidate public function Overrides FieldItemListInterface::defaultValuesFormValidate 2
FieldItemList::defaultValueWidget protected function Returns the widget object used in default value form.
FieldItemList::delegateMethod protected function Calls a method on each FieldItem.
FieldItemList::delete public function Overrides FieldItemListInterface::delete 2
FieldItemList::deleteRevision public function Overrides FieldItemListInterface::deleteRevision 1
FieldItemList::equals public function Overrides FieldItemListInterface::equals 2
FieldItemList::filterEmptyItems public function Overrides FieldItemListInterface::filterEmptyItems
FieldItemList::generateSampleItems public function Overrides FieldItemListInterface::generateSampleItems 1
FieldItemList::getEntity public function Overrides FieldItemListInterface::getEntity 1
FieldItemList::getFieldDefinition public function Overrides FieldItemListInterface::getFieldDefinition
FieldItemList::getLangcode public function Overrides FieldItemListInterface::getLangcode
FieldItemList::getSetting public function Overrides FieldItemListInterface::getSetting
FieldItemList::getSettings public function Overrides FieldItemListInterface::getSettings
FieldItemList::hasAffectingChanges public function Overrides FieldItemListInterface::hasAffectingChanges 1
FieldItemList::postSave public function Overrides FieldItemListInterface::postSave 1
FieldItemList::preSave public function Overrides FieldItemListInterface::preSave 1
FieldItemList::setLangcode public function Overrides FieldItemListInterface::setLangcode
FieldItemList::setValue public function Overrides ItemList::setValue
FieldItemList::view public function Overrides FieldItemListInterface::view
FieldItemList::__get public function Overrides FieldItemListInterface::__get
FieldItemList::__isset public function Overrides FieldItemListInterface::__isset
FieldItemList::__set public function Overrides FieldItemListInterface::__set
FieldItemList::__unset public function Overrides FieldItemListInterface::__unset
ItemList::appendItem public function Overrides ListInterface::appendItem
ItemList::count public function #[\ReturnTypeWillChange]
ItemList::filter public function Overrides ListInterface::filter
ItemList::first public function Overrides ListInterface::first
ItemList::get public function Overrides ListInterface::get 2
ItemList::getItemDefinition public function Overrides ListInterface::getItemDefinition
ItemList::getIterator public function #[\ReturnTypeWillChange]
ItemList::getString public function Overrides TypedData::getString
ItemList::getValue public function Overrides TypedData::getValue
ItemList::isEmpty public function Overrides ListInterface::isEmpty
ItemList::offsetExists public function #[\ReturnTypeWillChange] 1
ItemList::offsetGet public function #[\ReturnTypeWillChange]
ItemList::offsetSet public function #[\ReturnTypeWillChange]
ItemList::offsetUnset public function #[\ReturnTypeWillChange]
ItemList::onChange public function Overrides TraversableTypedDataInterface::onChange 1
ItemList::rekey protected function Renumbers the items in the list.
ItemList::removeItem public function Overrides ListInterface::removeItem
ItemList::set public function Overrides ListInterface::set
ItemList::__clone public function Magic method: Implements a deep clone.
StringTranslationTrait::$stringTranslation protected property The string translation service. 3
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
TypedData::$definition protected property The data definition. 1
TypedData::$name protected property The property name.
TypedData::$parent protected property The parent typed data object.
TypedData::createInstance public static function Overrides TypedDataInterface::createInstance
TypedData::getDataDefinition public function Overrides TypedDataInterface::getDataDefinition
TypedData::getName public function Overrides TypedDataInterface::getName
TypedData::getParent public function Overrides TypedDataInterface::getParent
TypedData::getPluginDefinition public function Overrides PluginInspectionInterface::getPluginDefinition
TypedData::getPluginId public function Overrides PluginInspectionInterface::getPluginId
TypedData::getPropertyPath public function Overrides TypedDataInterface::getPropertyPath
TypedData::getRoot public function Overrides TypedDataInterface::getRoot
TypedData::setContext public function Overrides TypedDataInterface::setContext
TypedData::validate public function Overrides TypedDataInterface::validate
TypedData::__construct public function Constructs a TypedData object given its definition and context. 4
TypedDataTrait::$typedDataManager protected property The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager public function Gets the typed data manager. 2
TypedDataTrait::setTypedDataManager public function Sets the typed data manager. 2

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