setComputed example

class EntityTestComputedField extends EntityTest {

  /** * {@inheritdoc} */
  public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
    $fields = parent::baseFieldDefinitions($entity_type);

    $fields['computed_string_field'] = BaseFieldDefinition::create('string')
      ->setLabel('Computed Field Test')
      ->setComputed(TRUE)
      ->setClass(ComputedTestFieldItemList::class);

    $fields['computed_reference_field'] = BaseFieldDefinition::create('entity_reference')
      ->setLabel('Computed Reference Field Test')
      ->setComputed(TRUE)
      ->setSetting('target_type', 'entity_test')
      ->setClass(ComputedReferenceTestFieldItemList::class);

    $fields['computed_test_cacheable_string_field'] = BaseFieldDefinition::create('computed_test_cacheable_string_item')
      ->setLabel(new TranslatableMarkup('Computed Cacheable String Field Test'))
      ->setComputed(TRUE)
      

$valNode->setLeft($key);
                $valNode->setRight($value);
                $this->completeNode($valNode, $loc->end);
                $value = $valNode;
            } else {
                $value = $this->expressionToPattern($value);
            }
            $retNode->setValue($value);
            $retNode->setKey($key);
            $retNode->setMethod($node->getMethod());
            $retNode->setShorthand($node->getShorthand());
            $retNode->setComputed($node->getComputed());
            $this->completeNode($retNode, $loc->end);
            
        } elseif ($node instanceof Node\SpreadElement) {
            
            $loc = $node->location;
            $retNode = $this->createNode("RestElement", $loc->start);
            $retNode->setArgument(
                $this->expressionToPattern($node->getArgument())
            );
            $this->completeNode($retNode, $loc->end);
            
        }

  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
    $properties = parent::propertyDefinitions($field_definition);

    $properties['summary'] = DataDefinition::create('string')
      ->setLabel(new TranslatableMarkup('Summary'));

    $properties['summary_processed'] = DataDefinition::create('string')
      ->setLabel(new TranslatableMarkup('Processed summary'))
      ->setDescription(new TranslatableMarkup('The summary text with the text format applied.'))
      ->setComputed(TRUE)
      ->setClass('\Drupal\text\TextProcessed')
      ->setSetting('text source', 'summary');

    return $properties;
  }

  /** * {@inheritdoc} */
  public static function schema(FieldStorageDefinitionInterface $field_definition) {
    return [
      

else {
      $target_id_definition = DataReferenceTargetDefinition::create('string')
        ->setLabel(new TranslatableMarkup('@label ID', ['@label' => $target_type_info->getLabel()]));
    }
    $target_id_definition->setRequired(TRUE);
    $properties['target_id'] = $target_id_definition;

    $properties['entity'] = DataReferenceDefinition::create('entity')
      ->setLabel($target_type_info->getLabel())
      ->setDescription(new TranslatableMarkup('The referenced entity'))
      // The entity object is computed out of the entity ID.       ->setComputed(TRUE)
      ->setReadOnly(FALSE)
      ->setTargetDefinition(EntityDataDefinition::create($settings['target_type']))
      // We can add a constraint for the target entity type. The list of       // referenceable bundles is a field setting, so the corresponding       // constraint is added dynamically in ::getConstraints().       ->addConstraint('EntityType', $settings['target_type']);

    return $properties;
  }

  /** * {@inheritdoc} */

function hook_entity_base_field_info(\Drupal\Core\Entity\EntityTypeInterface $entity_type) {
  if ($entity_type->id() == 'node') {
    $fields = [];
    $fields['mymodule_text'] = BaseFieldDefinition::create('string')
      ->setLabel(t('The text'))
      ->setDescription(t('A text property added by mymodule.'))
      ->setComputed(TRUE)
      ->setClass('\Drupal\mymodule\EntityComputedText');

    return $fields;
  }
}

/** * Alter base field definitions for a content entity type. * * @param \Drupal\Core\Field\FieldDefinitionInterface[] $fields * The array of base field definitions for the entity type. * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type * The entity type definition. * * @see hook_entity_base_field_info() * @see hook_entity_bundle_field_info() * @see hook_entity_bundle_field_info_alter() * * @todo WARNING: This hook will be changed in * https://www.drupal.org/node/2346329. */

/** * {@inheritdoc} */
  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
    $properties['value'] = DataDefinition::create('datetime_iso8601')
      ->setLabel(t('Start date value'))
      ->setRequired(TRUE);

    $properties['start_date'] = DataDefinition::create('any')
      ->setLabel(t('Computed start date'))
      ->setDescription(t('The computed start DateTime object.'))
      ->setComputed(TRUE)
      ->setClass(DateTimeComputed::class)
      ->setSetting('date source', 'value');

    $properties['end_value'] = DataDefinition::create('datetime_iso8601')
      ->setLabel(t('End date value'))
      ->setRequired(TRUE);

    $properties['end_date'] = DataDefinition::create('any')
      ->setLabel(t('Computed end date'))
      ->setDescription(t('The computed end DateTime object.'))
      ->setComputed(TRUE)
      

class InternalPropertyTestFieldItem extends StringItem {

  /** * {@inheritdoc} */
  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
    $properties = parent::propertyDefinitions($field_definition);

    // Add a computed property that is non-internal.     $properties['non_internal_value'] = DataDefinition::create('string')
      ->setLabel(new TranslatableMarkup('Computed string, non-internal property'))
      ->setComputed(TRUE)
      ->setClass(ComputedString::class)
      ->setInternal(FALSE);
    // Add a computed property that is internal.     $properties['internal_value'] = DataDefinition::create('string')
      ->setLabel(new TranslatableMarkup('Computed string, internal property'))
      ->setComputed(TRUE)
      ->setClass(ComputedString::class);
    return $properties;
  }

}

class FileUriItem extends UriItem {

  /** * {@inheritdoc} */
  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
    $properties = parent::propertyDefinitions($field_definition);

    $properties['url'] = DataDefinition::create('string')
      ->setLabel(t('Root-relative file URL'))
      ->setComputed(TRUE)
      ->setInternal(FALSE)
      ->setClass(ComputedFileUrl::class);

    return $properties;
  }

}

/** * {@inheritdoc} */
  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
    $properties['value'] = DataDefinition::create('datetime_iso8601')
      ->setLabel(new TranslatableMarkup('Date value'))
      ->setRequired(TRUE);

    $properties['date'] = DataDefinition::create('any')
      ->setLabel(new TranslatableMarkup('Computed date'))
      ->setDescription(new TranslatableMarkup('The computed DateTime object.'))
      ->setComputed(TRUE)
      ->setClass('\Drupal\datetime\DateTimeComputed')
      ->setSetting('date source', 'value');

    return $properties;
  }

  /** * {@inheritdoc} */
  public static function schema(FieldStorageDefinitionInterface $field_definition) {
    return [
      

  public function entityBaseFieldInfo(EntityTypeInterface $entity_type) {
    if (!$this->moderationInfo->isModeratedEntityType($entity_type)) {
      return [];
    }

    $fields = [];
    $fields['moderation_state'] = BaseFieldDefinition::create('string')
      ->setLabel(t('Moderation state'))
      ->setDescription(t('The moderation state of this piece of content.'))
      ->setComputed(TRUE)
      ->setClass(ModerationStateFieldItemList::class)
      ->setDisplayOptions('view', [
        'label' => 'hidden',
        'region' => 'hidden',
        'weight' => -5,
      ])
      ->setDisplayOptions('form', [
        'type' => 'moderation_state_default',
        'weight' => 100,
        'settings' => [],
      ])
      

  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
    $properties['value'] = DataDefinition::create('string')
      ->setLabel(t('Language code'))
      ->setRequired(TRUE);

    $properties['language'] = DataReferenceDefinition::create('language')
      ->setLabel(t('Language object'))
      ->setDescription(t('The referenced language'))
      // The language object is retrieved via the language code.       ->setComputed(TRUE)
      ->setReadOnly(FALSE);

    return $properties;
  }

  /** * {@inheritdoc} */
  public static function schema(FieldStorageDefinitionInterface $field_definition) {
    return [
      'columns' => [
        

$properties['value'] = DataDefinition::create('string')
      ->setLabel(t('Text'))
      ->setRequired(TRUE);

    $properties['format'] = DataDefinition::create('filter_format')
      ->setLabel(t('Text format'))
      ->setSetting('allowed_formats', $field_definition->getSetting('allowed_formats'));

    $properties['processed'] = DataDefinition::create('string')
      ->setLabel(t('Processed text'))
      ->setDescription(t('The text with the text format applied.'))
      ->setComputed(TRUE)
      ->setClass('\Drupal\text\TextProcessed')
      ->setSetting('text source', 'value')
      ->setInternal(FALSE);

    return $properties;
  }

  /** * {@inheritdoc} */
  public function applyDefaultValue($notify = TRUE) {
    

class SingleInternalPropertyTestFieldItem extends StringItem {

  /** * {@inheritdoc} */
  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
    $properties = parent::propertyDefinitions($field_definition);

    // Add a computed property that is internal.     $properties['internal_value'] = DataDefinition::create('string')
      ->setLabel(new TranslatableMarkup('Computed string, internal property'))
      ->setComputed(TRUE)
      ->setClass(ComputedString::class);
    return $properties;
  }

}