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class EntityReferenceFieldItemList in Zircon Profile 8

Same name and namespace in other branches
  1. 8.0 core/lib/Drupal/Core/Field/EntityReferenceFieldItemList.php \Drupal\Core\Field\EntityReferenceFieldItemList

Defines a item list class for entity reference fields.

Hierarchy

Expanded class hierarchy of EntityReferenceFieldItemList

1 file declares its use of EntityReferenceFieldItemList
FileFieldItemList.php in core/modules/file/src/Plugin/Field/FieldType/FileFieldItemList.php
Contains \Drupal\file\Plugin\Field\FieldType\FileFieldItemList.

File

core/lib/Drupal/Core/Field/EntityReferenceFieldItemList.php, line 16
Contains \Drupal\Core\Field\EntityReferenceFieldItemList.

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 (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->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');
      $entities = \Drupal::entityManager()
        ->getStorage($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.
      $uuids = array();
      foreach ($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();
        $entities = \Drupal::entityManager()
          ->getStorage($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 => $properties) {
      if (isset($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'];
    }
    $entities = \Drupal::entityManager()
      ->getStorage($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

Namesort descending Modifiers Type Description Overrides
EntityReferenceFieldItemList::defaultValuesFormSubmit public function Processes the submitted default value. Overrides FieldItemList::defaultValuesFormSubmit
EntityReferenceFieldItemList::getConstraints public function Gets a list of validation constraints. Overrides FieldItemList::getConstraints
EntityReferenceFieldItemList::processDefaultValue public static function Processes the default value before being applied. Overrides FieldItemList::processDefaultValue
EntityReferenceFieldItemList::referencedEntities public function Gets the entities referenced by this field, preserving field item deltas. 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
FieldItemList::access public function Checks data value access. Overrides AccessibleInterface::access
FieldItemList::applyDefaultValue public function Applies the default value. Overrides TypedData::applyDefaultValue
FieldItemList::createItem protected function Helper for creating a list item object. Overrides ItemList::createItem
FieldItemList::defaultAccess public function Contains the default access logic of this field. Overrides FieldItemListInterface::defaultAccess 2
FieldItemList::defaultValuesForm public function Returns a form for the default value input. Overrides FieldItemListInterface::defaultValuesForm 2
FieldItemList::defaultValuesFormValidate public function Validates the submitted default value. Overrides FieldItemListInterface::defaultValuesFormValidate 1
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 Defines custom delete behavior for field values. Overrides FieldItemListInterface::delete 1
FieldItemList::deleteRevision public function Defines custom revision delete behavior for field values. Overrides FieldItemListInterface::deleteRevision 1
FieldItemList::equals public function Determines equality to another object implementing FieldItemListInterface. Overrides FieldItemListInterface::equals
FieldItemList::filterEmptyItems public function Filters out empty field items and re-numbers the item deltas. Overrides FieldItemListInterface::filterEmptyItems
FieldItemList::generateSampleItems public function Overrides FieldItemListInterface::generateSampleItems
FieldItemList::getEntity public function Gets the entity that field belongs to. Overrides FieldItemListInterface::getEntity
FieldItemList::getFieldDefinition public function Gets the field definition. Overrides FieldItemListInterface::getFieldDefinition
FieldItemList::getLangcode public function Gets the langcode of the field values held in the object. Overrides FieldItemListInterface::getLangcode
FieldItemList::getSetting public function Returns the value of a given field setting. Overrides FieldItemListInterface::getSetting
FieldItemList::getSettings public function Returns the array of field settings. Overrides FieldItemListInterface::getSettings
FieldItemList::getValue public function @todo Revisit the need when all entity types are converted to NG entities. Overrides ItemList::getValue
FieldItemList::postSave public function Defines custom post-save behavior for field values. Overrides FieldItemListInterface::postSave 1
FieldItemList::preSave public function Defines custom presave behavior for field values. Overrides FieldItemListInterface::preSave
FieldItemList::setLangcode public function Sets the langcode of the field values held in the object. Overrides FieldItemListInterface::setLangcode
FieldItemList::setValue public function Overrides \Drupal\Core\TypedData\TypedData::setValue(). Overrides ItemList::setValue
FieldItemList::view public function Returns a renderable array for the field items. Overrides FieldItemListInterface::view
FieldItemList::__get public function Magic method: Gets a property value of to the first field item. Overrides FieldItemListInterface::__get
FieldItemList::__isset public function Magic method: Determines whether a property of the first field item is set. Overrides FieldItemListInterface::__isset
FieldItemList::__set public function Magic method: Sets a property value of the first field item. Overrides FieldItemListInterface::__set
FieldItemList::__unset public function Magic method: Unsets a property of the first field item. Overrides FieldItemListInterface::__unset
ItemList::appendItem public function Appends a new item to the list. Overrides ListInterface::appendItem
ItemList::count public function
ItemList::filter public function Filters the items in the list using a custom callback. Overrides ListInterface::filter
ItemList::first public function Returns the first item in this list. Overrides ListInterface::first
ItemList::get public function Returns the item at the specified position in this list. Overrides ListInterface::get 1
ItemList::getItemDefinition public function Gets the definition of a contained item. Overrides ListInterface::getItemDefinition
ItemList::getIterator public function
ItemList::getString public function Returns a string representation of the data. Overrides TypedData::getString
ItemList::isEmpty public function Determines whether the list contains any non-empty items. Overrides ListInterface::isEmpty
ItemList::offsetExists public function 1
ItemList::offsetGet public function
ItemList::offsetSet public function
ItemList::offsetUnset public function
ItemList::onChange public function React to changes to a child property or item. Overrides TraversableTypedDataInterface::onChange
ItemList::rekey protected function Renumbers the items in the list.
ItemList::removeItem public function Removes the item at the specified position. Overrides ListInterface::removeItem
ItemList::set public function Sets the value of the item at a given position in the list. Overrides ListInterface::set
ItemList::__clone public function Magic method: Implements a deep clone.
StringTranslationTrait::$stringTranslation protected property The string translation service.
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::$parent protected property The parent typed data object.
TypedData::createInstance public static function Constructs a TypedData object given its definition and context. Overrides TypedDataInterface::createInstance
TypedData::getDataDefinition public function Gets the data definition. Overrides TypedDataInterface::getDataDefinition
TypedData::getName public function Returns the name of a property or item. Overrides TypedDataInterface::getName
TypedData::getParent public function Returns the parent data structure; i.e. either complex data or a list. Overrides TypedDataInterface::getParent
TypedData::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition
TypedData::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
TypedData::getPropertyPath public function Returns the property path of the data. Overrides TypedDataInterface::getPropertyPath
TypedData::getRoot public function Returns the root of the typed data tree. Overrides TypedDataInterface::getRoot
TypedData::setContext public function Sets the context of a property or item via a context aware parent. Overrides TypedDataInterface::setContext
TypedData::validate public function Validates the currently set data value. Overrides TypedDataInterface::validate
TypedData::__construct public function Constructs a TypedData object given its definition and context. 3
TypedDataTrait::$typedDataManager protected property The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager public function Gets the typed data manager. 1
TypedDataTrait::setTypedDataManager public function Sets the typed data manager. 1