FieldItemBase::__construct

public FieldItemBase::__construct(DataDefinitionInterface $definition, $name = NULL, TypedDataInterface $parent = NULL)

Constructs a TypedData object given its definition and context.

@todo When \Drupal\Core\Config\TypedConfigManager has been fixed to use class-based definitions, type-hint $definition to DataDefinitionInterface. https://www.drupal.org/node/1928868

Parameters

\Drupal\Core\TypedData\DataDefinitionInterface $definition: The data definition.

string $name: (optional) The name of the created property, or NULL if it is the root of a typed data tree. Defaults to NULL.

\Drupal\Core\TypedData\TypedDataInterface $parent: (optional) The parent object of the data property, or NULL if it is the root of a typed data tree. Defaults to NULL.

Overrides TypedData::__construct

See also

\Drupal\Core\TypedData\TypedDataManager::create()

File

core/lib/Drupal/Core/Field/FieldItemBase.php, line 46

Class

FieldItemBase

An entity field item.

Namespace

Drupal\Core\Field

Code

public function __construct(DataDefinitionInterface $definition, $name = NULL, TypedDataInterface $parent = NULL) {
  parent::__construct($definition, $name, $parent);
  // Initialize computed properties by default, such that they get cloned
  // with the whole item.
  foreach ($this->definition->getPropertyDefinitions() as $name => $definition) {
    if ($definition->isComputed()) {
      $this->properties[$name] = \Drupal::typedDataManager()->getPropertyInstance($this, $name);
    }
  }
}