public BaseFieldDefinition::setDefaultValueCallback($callback)

public FieldConfig::preSave(EntityStorageInterface $storage)

public BaseFieldDefinition::setTargetEntityTypeId($entity_

public static BaseFieldDefinition::create($type)

protected FieldStorageConfig::preSaveNew(EntityStorageInterface

public static FieldStorageConfig::loadByName($entity_type_id

The module handler. Type:

Define Field API formatter types. Field API formatters specify how fields are displayed when the entity to which the field is attached is displayed

Attaches custom data fields to Drupal entities. The Field API allows custom data fields to be attached to Drupal entities and takes care of

Controller class for "field storage" configuration entities. Hierarchy class \Drupal\Core\Entity\