function hook_field_views_data_alter

hook_field_views_data_alter(array &$data, \Drupal\field\FieldStorageConfigInterface $field_storage)

Alter the Views data for a single Field API field.

This is called on all modules even if there is no hook_field_views_data() implementation for the field, and therefore may be used to alter the default data that views_field_default_views_data() supplies for the field storage.

Parameters

array $data: The views data for the field storage. This has the same format as the return value of hook_views_data(). @param \Drupal\field\FieldStorageConfigInterface $field_storage The field storage config entity.

See also

views_views_data()

hook_field_views_data()

hook_field_views_data_views_data_alter()

Related topics

Hooks

Define functions that alter the behavior of Drupal core.

File

core/modules/views/views.api.php, line 557

Describes hooks and plugins provided by the Views module.

Code

function hook_field_views_data_alter(array &$data, \Drupal\field\FieldStorageConfigInterface $field_storage) {
  $entity_type_id = $field_storage->getTargetEntityTypeId();
  $field_name = $field_storage->getName();
  $entity_type = \Drupal::entityManager()->getDefinition($entity_type_id);
  $pseudo_field_name = 'reverse_' . $field_name . '_' . $entity_type_id;
  $table_mapping = \Drupal::entityManager()->getStorage($entity_type_id)->getTableMapping();

  list($label) = views_entity_field_label($entity_type_id, $field_name);

  $data['file_managed'][$pseudo_field_name]['relationship'] = array(
    'title' => t('@entity using @field', array('@entity' => $entity_type->getLabel(), '@field' => $label)),
    'help' => t('Relate each @entity with a @field set to the image.', array('@entity' => $entity_type->getLabel(), '@field' => $label)),
    'id' => 'entity_reverse',
    'field_name' => $field_name,
    'entity_type' => $entity_type_id,
    'field table' => $table_mapping->getDedicatedDataTableName($field_storage),
    'field field' => $field_name . '_target_id',
    'base' => $entity_type->getBaseTable(),
    'base field' => $entity_type->getKey('id'),
    'label' => $field_name,
    'join_extra' => array(
      0 => array(
        'field' => 'deleted',
        'value' => 0,
        'numeric' => TRUE,
      ),
    ),
  );
}