class LanguageReference in Drupal 9

Defines the 'language_reference' data type.

This serves as 'language' property of language field items and gets its value set from the parent, i.e. LanguageItem.

The plain value is the language object, i.e. an instance of \Drupal\Core\Language\Language. For setting the value the language object or the language code as string may be passed.

Plugin annotation

@DataType(
  id = "language_reference",
  label = @Translation("Language reference"),
  definition_class = "\Drupal\Core\TypedData\DataReferenceDefinition"
)

Hierarchy

• class \Drupal\Core\TypedData\TypedData implements PluginInspectionInterface, TypedDataInterface uses DependencySerializationTrait, StringTranslationTrait, TypedDataTrait
  • class \Drupal\Core\TypedData\DataReferenceBase implements DataReferenceInterface
    • class \Drupal\Core\TypedData\Plugin\DataType\LanguageReference

File

core/lib/Drupal/Core/TypedData/Plugin/DataType/LanguageReference.php, line 23

Namespace

Drupal\Core\TypedData\Plugin\DataType

class LanguageReference extends DataReferenceBase {

  /**
   * {@inheritdoc}
   */
  public function getTargetIdentifier() {
    $language = $this
      ->getTarget();
    return isset($language) ? $language
      ->id() : NULL;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DataReferenceBase::$target	protected	property	The referenced data.
DataReferenceBase::getString	public	function	Returns a string representation of the data. Overrides TypedData::getString	1
DataReferenceBase::getTarget	public	function	Gets the referenced data. Overrides DataReferenceInterface::getTarget	1
DataReferenceBase::getValue	public	function	Gets the data value. Overrides TypedData::getValue
DataReferenceBase::setValue	public	function	Sets the data value. Overrides TypedData::setValue	1
DependencySerializationTrait::$_entityStorages	protected	property
DependencySerializationTrait::$_serviceIds	protected	property
DependencySerializationTrait::__sleep	public	function		2
DependencySerializationTrait::__wakeup	public	function		2
LanguageReference::getTargetIdentifier	public	function	Gets the identifier of the referenced data. Overrides DataReferenceInterface::getTargetIdentifier
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	4
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::$parent	protected	property	The parent typed data object.
TypedData::applyDefaultValue	public	function	Applies the default value. Overrides TypedDataInterface::applyDefaultValue	3
TypedData::createInstance	public static	function	Constructs a TypedData object given its definition and context. Overrides TypedDataInterface::createInstance
TypedData::getConstraints	public	function	Gets a list of validation constraints. Overrides TypedDataInterface::getConstraints	9
TypedData::getDataDefinition	public	function	Gets the data definition. Overrides TypedDataInterface::getDataDefinition
TypedData::getName	public	function	Returns the name of a property or item. Overrides TypedDataInterface::getName
TypedData::getParent	public	function	Returns the parent data structure; i.e. either complex data or a list. Overrides TypedDataInterface::getParent
TypedData::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition
TypedData::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
TypedData::getPropertyPath	public	function	Returns the property path of the data. Overrides TypedDataInterface::getPropertyPath
TypedData::getRoot	public	function	Returns the root of the typed data tree. Overrides TypedDataInterface::getRoot
TypedData::setContext	public	function	Sets the context of a property or item via a context aware parent. Overrides TypedDataInterface::setContext
TypedData::validate	public	function	Validates the currently set data value. Overrides TypedDataInterface::validate
TypedData::__construct	public	function	Constructs a TypedData object given its definition and context.	3
TypedDataTrait::$typedDataManager	protected	property	The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager	public	function	Gets the typed data manager.	2
TypedDataTrait::setTypedDataManager	public	function	Sets the typed data manager.	2