/**
* {@inheritdoc}
*/
public function buildUrls(FacetInterface $facet, array $results)
{
// No results are found for this facet, so don't try to create urls.
if (empty($results)) {
return [];
}
// First get the current list of get parameters.
$get_params = $this->request->query;
// When adding/removing a filter the number of pages may have changed,
// possibly resulting in an invalid page parameter.
$get_params->remove('page');
// Set the url alias from the the facet object.
$this->urlAlias = $facet->getUrlAlias();
$request = $this->request;
if ($facet->getFacetSource()->getPath()) {
$request = Request::create($facet->getFacetSource()->getPath());
}
$url = Url::createFromRequest($request);
$url->setOption('attributes', ['rel' => 'nofollow']);
/** @var \Drupal\facets\Result\ResultInterface[] $results */
foreach ($results as &$result) {
// Sets the url for children.
if ($children = $result->getChildren()) {
$this->buildUrls($facet, $children);
}
$filter_string = $this->urlAlias . self::SEPARATOR . $result->getRawValue();
$result_get_params = clone $get_params;
$filter_params = $result_get_params->get($this->filterKey, [], TRUE);
// If the value is active, remove the filter string from the parameters.
if ($result->isActive()) {
foreach ($filter_params as $key => $filter_param) {
if ($filter_param == $filter_string) {
unset($filter_params[$key]);
}
}
} else {
$filter_params[] = $filter_string;
// Exclude currently active results from the filter params if we are in
// the show_only_one_result mode.
if ($facet->getShowOnlyOneResult()) {
foreach ($results as $result2) {
if ($result2->isActive()) {
$active_filter_string = $this->urlAlias . self::SEPARATOR . $result2->getRawValue();
foreach ($filter_params as $key2 => $filter_param2) {
if ($filter_param2 == $active_filter_string) {
unset($filter_params[$key2]);
}
}
}
}
}
}
$result_get_params->set($this->filterKey, array_values($filter_params));
$url = clone $url;
$url->setOption('query', $result_get_params->all());
$result->setUrl($url);
}
return $results;
}
/**
* {@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;
}
/**
* {@inheritdoc}
*/
public function buildUrls(FacetInterface $facet, array $results)
{
// Create links for all the values.
// First get the current list of get parameters.
$get_params = $this->request->query;
// Set the url alias from the the facet object.
$this->urlAlias = $facet->getUrlAlias();
// No results are found for this facet, so don't try to create urls.
if (empty($results)) {
return [];
}
/** @var \Drupal\facets\Result\ResultInterface $result */
foreach ($results as &$result) {
$filter_string = $this->urlAlias . self::SEPARATOR . $result->getRawValue();
$result_get_params = clone $get_params;
$filter_params = $result_get_params->get($this->filterKey, [], TRUE);
// If the value is active, remove the filter string from the parameters.
if ($result->isActive()) {
foreach ($filter_params as $key => $filter_param) {
if ($filter_param == $filter_string) {
unset($filter_params[$key]);
}
}
} else {
$filter_params[] = $filter_string;
}
$result_get_params->set($this->filterKey, $filter_params);
$request = $this->request;
if ($facet->getFacetSource()->getPath()) {
$request = Request::create($facet->getFacetSource()->getPath());
}
$url = Url::createFromRequest($request);
$url->setOption('query', $result_get_params->all());
$result->setUrl($url);
}
return $results;
}
