function TimestampItem::propertyDefinitions

Defines field item properties.

Properties that are required to constitute a valid, non-empty item should be denoted with \Drupal\Core\TypedData\DataDefinition::setRequired().

Return value

\Drupal\Core\TypedData\DataDefinitionInterface[] An array of property definitions of contained properties, keyed by property name.

Overrides FieldItemInterface::propertyDefinitions

File

core/lib/Drupal/Core/Field/Plugin/Field/FieldType/TimestampItem.php, line 42

Class

TimestampItem

Defines the 'timestamp' entity field type.

Namespace

Code

public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
  $properties['value'] = DataDefinition::create('timestamp')->setLabel(t('Timestamp value'))
    ->setRequired(TRUE);
  return $properties;
}