public function Field::resolve in Open Social 10.1.x

Same name and namespace in other branches

1. 10.3.x modules/custom/social_graphql/src/Plugin/GraphQL/DataProducer/Field/Field.php \Drupal\social_graphql\Plugin\GraphQL\DataProducer\Field\Field::resolve()
2. 10.0.x modules/custom/social_graphql/src/Plugin/GraphQL/DataProducer/Field/Field.php \Drupal\social_graphql\Plugin\GraphQL\DataProducer\Field\Field::resolve()
3. 10.2.x modules/custom/social_graphql/src/Plugin/GraphQL/DataProducer/Field/Field.php \Drupal\social_graphql\Plugin\GraphQL\DataProducer\Field\Field::resolve()

Finds the requested field on the entity.

Parameters

\Drupal\Core\Entity\EntityInterface $entity: The entity that contains the field.

string $field: The name of the field to return.

Return value

\Drupal\Core\Field\FieldItemListInterface|null A field item list if the field exists or null if the entity is not fieldable or doesn't have the requested field.

File

modules/custom/social_graphql/src/Plugin/GraphQL/DataProducer/Field/Field.php, line 48

Class

Field

Produces a field instance from an entity.

Namespace

Drupal\social_graphql\Plugin\GraphQL\DataProducer\Field

Code

public function resolve(EntityInterface $entity, string $field) : ?FieldItemListInterface {
  if (!$entity instanceof FieldableEntityInterface || !$entity
    ->hasField($field)) {
    return NULL;
  }
  $value = $entity
    ->get($field);

  // A FieldableEntityInterface::get will always return a
  // FieldItemListInterface which implements AccessibleInterface. Thus no
  // further typechecking is needed.
  return $value
    ->access('view') ? $value : NULL;
}