public static function Relation::baseFieldDefinitions in Relation 8.2

Same name and namespace in other branches

1. 8 src/Entity/Relation.php \Drupal\relation\Entity\Relation::baseFieldDefinitions()

Provides base field definitions for an entity type.

Implementations typically use the class \Drupal\Core\Field\BaseFieldDefinition for creating the field definitions; for example a 'name' field could be defined as the following:

$fields['name'] = BaseFieldDefinition::create('string')
  ->setLabel(t('Name'));

By definition, base fields are fields that exist for every bundle. To provide definitions for fields that should only exist on some bundles, use \Drupal\Core\Entity\FieldableEntityInterface::bundleFieldDefinitions().

The definitions returned by this function can be overridden for all bundles by hook_entity_base_field_info_alter() or overridden on a per-bundle basis via 'base_field_override' configuration entities.

Parameters

\Drupal\Core\Entity\EntityTypeInterface $entity_type: The entity type definition. Useful when a single class is used for multiple, possibly dynamic entity types.

Return value

\Drupal\Core\Field\FieldDefinitionInterface[] An array of base field definitions for the entity type, keyed by field name.

Overrides ContentEntityBase::baseFieldDefinitions

See also

\Drupal\Core\Entity\EntityFieldManagerInterface::getFieldDefinitions()

\Drupal\Core\Entity\FieldableEntityInterface::bundleFieldDefinitions()

File

src/Entity/Relation.php, line 76

Class

Relation

Defines relation entity.

Namespace

Drupal\relation\Entity

Code

public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
  $fields = parent::baseFieldDefinitions($entity_type);
  $fields['uid'] = BaseFieldDefinition::create('entity_reference')
    ->setLabel(t('User ID'))
    ->setDescription(t('The {users}.uid that owns this relation; initially, this is the user that created it.'))
    ->setSettings(array(
    'target_type' => 'user',
    'default_value' => 0,
  ))
    ->setRevisionable(TRUE);
  $fields['created'] = BaseFieldDefinition::create('created')
    ->setLabel(t('Created'))
    ->setDescription(t('The date the Relation was created.'))
    ->setRevisionable(TRUE);
  $fields['changed'] = BaseFieldDefinition::create('changed')
    ->setLabel(t('Changed'))
    ->setDescription(t('The date the Relation was last edited.'))
    ->setRevisionable(TRUE);
  $fields['arity'] = BaseFieldDefinition::create('integer')
    ->setLabel(t('ArityD'))
    ->setDescription(t('Number of endpoints on the Relation. Cannot exceed max_arity, or be less than min_arity in relation_type table.'))
    ->setRevisionable(TRUE)
    ->setSetting('unsigned', TRUE);
  return $fields;
}