2 * Implements hook_field_views_data_views_data_alter().
4 function {{ machine_name }}_field_views_data_views_data_alter(array &$data, \Drupal\field\FieldStorageConfigInterface $field) {
5 $field_name = $field->getName();
6 $data_key = 'field_data_' . $field_name;
7 $entity_type_id = $field->entity_type;
8 $entity_type = \Drupal::entityManager()->getDefinition($entity_type_id);
9 $pseudo_field_name = 'reverse_' . $field_name . '_' . $entity_type_id;
10 list($label) = views_entity_field_label($entity_type_id, $field_name);
11 $table_mapping = \Drupal::entityManager()->getStorage($entity_type_id)->getTableMapping();
13 // Views data for this field is in $data[$data_key].
14 $data[$data_key][$pseudo_field_name]['relationship'] = [
15 'title' => t('@entity using @field', ['@entity' => $entity_type->getLabel(), '@field' => $label]),
16 'help' => t('Relate each @entity with a @field set to the term.', ['@entity' => $entity_type->getLabel(), '@field' => $label]),
17 'id' => 'entity_reverse',
18 'field_name' => $field_name,
19 'entity_type' => $entity_type_id,
20 'field table' => $table_mapping->getDedicatedDataTableName($field),
21 'field field' => $field_name . '_target_id',
22 'base' => $entity_type->getBaseTable(),
23 'base field' => $entity_type->getKey('id'),
24 'label' => $field_name,