The field definition the item definition belongs to. Type: \Drupal\Core\Field\FieldDefinitionInterface File core/lib/Drupal/Core/Field/TypedData/FieldItemDataDefinition.php, line 24 Class FieldItemDataDefinition A typed data definition class for defining field items. Namespace Drupal\Core\Field\TypedData Code protected $fieldDefinition;

public StorageComparerInterface::getAllCollectionNames($include_default = TRUE) Gets the existing collections from both the target and source storage. Parameters bool $include_default: (optional) Include the default collection. Defaults to TRUE. Return value array An array of existing collection names. File core/lib/Drupal/Core/Config/StorageComparerInterface.php, line 123 Class StorageComparerInterface Defines an interface for comparison of configuration storage objects. Namespace Dr

public ConditionFundamentals::count() Implements \Countable::count(). Returns the size of this conditional. The size of the conditional is the size of its conditional array minus one, because one element is the conjunction. Overrides ConditionInterface::count File core/lib/Drupal/Core/Entity/Query/ConditionFundamentals.php, line 67 Class ConditionFundamentals Common code for all implementations of the entity query condition interfaces. Namespace Drupal\Core\Entity\Query Code public fun

public QueryFactory::__construct(Connection $connection) Constructs a QueryFactory object. Parameters \Drupal\Core\Database\Connection $connection: The database connection used by the entity query. File core/lib/Drupal/Core/Entity/Query/Sql/QueryFactory.php, line 38 Class QueryFactory Factory class creating entity query objects for the SQL backend. Namespace Drupal\Core\Entity\Query\Sql Code public function __construct(Connection $connection) { $this->connection = $connection;

public UnmetDependenciesException::getTranslatedMessage(TranslationInterface $string_translation, $extension) Gets a translated message from the exception. Parameters \Drupal\Core\StringTranslation\TranslationInterface $string_translation: The string translation service. Return value string File core/lib/Drupal/Core/Config/UnmetDependenciesException.php, line 55 Class UnmetDependenciesException An exception thrown if configuration has unmet dependencies. Namespace Drupal\Core\Config

public ModuleHandler::loadAllIncludes($type, $name = NULL) Loads an include file for each enabled module. Parameters string $type: The include file's type (file extension). string $name: (optional) The base file name (without the $type extension). If omitted, each module's name is used; i.e., "$module.$type" by default. Overrides ModuleHandlerInterface::loadAllIncludes File core/lib/Drupal/Core/Extension/ModuleHandler.php, line 252 Class ModuleHandler Class that manages modules in a Drupa

An array of directories to scan, keyed by the provider. The value can either be a string or an array of strings. The string values should be the path of a directory to scan. Type: array File core/lib/Drupal/Component/Discovery/YamlDirectoryDiscovery.php, line 28 Class YamlDirectoryDiscovery Discovers multiple YAML files in a set of directories. Namespace Drupal\Component\Discovery Code protected $directories = [];

public MetadataBubblingUrlGenerator::getRouteDebugMessage($name, array $parameters = array()) Convert a route identifier (name, content object etc) into a string usable for logging and other debug/error messages. Parameters mixed $name: array $parameters which should contain a content field containing: a RouteReferrersReadInterface object Return value string Overrides VersatileGeneratorInterface::getRouteDebugMessage File core/lib/Drupal/Core/Render/MetadataBubblingUrlGenerator.php, line 122

public ConfigHandler::getFormKey() Returns the key that represents this form. Return value string The form key used in the URL, e.g., the string 'add-handler' in 'admin/structure/views/%/add-handler/%/%/%'. Overrides ViewsFormInterface::getFormKey File core/modules/views_ui/src/Form/Ajax/ConfigHandler.php, line 27 Class ConfigHandler Provides a form for configuring an item in the Views UI. Namespace Drupal\views_ui\Form\Ajax Code public function getFormKey() { return 'handler'; }

public KeyValueStoreInterface::getMultiple(array $keys) Returns the stored key/value pairs for a given set of keys. @todo What's returned for non-existing keys? Parameters array $keys: A list of keys to retrieve. Return value array An associative array of items successfully returned, indexed by key. File core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php, line 53 Class KeyValueStoreInterface Defines the interface for key/value store implementations. Namespace Drupal\Core\Ke