/**
* {@inheritdoc}
*/
public function build(FacetInterface $facet, array $results)
{
$field_identifier = $facet->getFieldIdentifier();
$entity = 'node';
// Support multiple entities when using Search API.
if ($facet->getFacetSource() instanceof SearchApiFacetSourceInterface) {
$index = $facet->getFacetSource()->getIndex();
$field = $index->getField($field_identifier);
$entity = str_replace('entity:', '', $field->getDatasourceId());
}
// If it's an entity base field, we find it in the field definitions.
// We don't have access to the bundle via SearchApiFacetSourceInterface, so
// we check the entity's base fields only.
$base_fields = $this->entityFieldManager->getFieldDefinitions($entity, '');
// This only works for configurable fields.
$config_entity_name = sprintf('field.storage.%s.%s', $entity, $field_identifier);
if (isset($base_fields[$field_identifier])) {
$field = $base_fields[$field_identifier];
} elseif ($this->configManager->loadConfigEntityByName($config_entity_name) !== NULL) {
$field = $this->configManager->loadConfigEntityByName($config_entity_name);
}
if ($field) {
$function = $field->getSetting('allowed_values_function');
if (empty($function)) {
$allowed_values = $field->getSetting('allowed_values');
} else {
$allowed_values = ${$function}($field);
}
if (is_array($allowed_values)) {
/** @var \Drupal\facets\Result\ResultInterface $result */
foreach ($results as &$result) {
if (isset($allowed_values[$result->getRawValue()])) {
$result->setDisplayValue($allowed_values[$result->getRawValue()]);
}
}
}
}
return $results;
}
