/**
* {@inheritdoc}
*/
public function getFields($extract = TRUE)
{
if ($extract && !$this->fieldsExtracted) {
$data_type_fallback_mapping = Utility::getDataTypeFallbackMapping($this->index);
foreach (array(NULL, $this->getDatasourceId()) as $datasource_id) {
$fields_by_property_path = array();
foreach ($this->index->getFieldsByDatasource($datasource_id) as $field_id => $field) {
// Don't overwrite fields that were previously set.
if (empty($this->fields[$field_id])) {
$this->fields[$field_id] = clone $field;
$field_data_type = $this->fields[$field_id]->getType();
// If the field data type is in the fallback mapping list, then use
// the fallback type as field type.
if (isset($data_type_fallback_mapping[$field_data_type])) {
$this->fields[$field_id]->setType($data_type_fallback_mapping[$field_data_type]);
}
$fields_by_property_path[$field->getPropertyPath()] = $this->fields[$field_id];
}
}
if ($datasource_id && $fields_by_property_path) {
try {
Utility::extractFields($this->getOriginalObject(), $fields_by_property_path);
} catch (SearchApiException $e) {
// If we couldn't load the object, just log an error and fail
// silently to set the values.
watchdog_exception('search_api', $e);
}
}
}
$this->fieldsExtracted = TRUE;
}
return $this->fields;
}
