/**
* Returns the active search index.
*
* @return \Drupal\search_api\IndexInterface|null
* The search index to use with this filter, or NULL if none could be
* loaded.
*/
protected function getIndex()
{
if ($this->getQuery()) {
return $this->getQuery()->getIndex();
}
$base_table = $this->view->storage->get('base_table');
return SearchApiQuery::getIndexFromTable($base_table);
}
/**
* Retrieves an options list of available fulltext fields.
*
* @return string[]
* An associative array mapping the identifiers of the index's fulltext
* fields to their prefixed labels.
*/
protected function getFulltextFields()
{
$fields = array();
if (!empty($this->query)) {
$index = $this->query->getIndex();
} else {
$index = SearchApiQuery::getIndexFromTable($this->table);
}
if (!$index) {
return array();
}
$fields_info = $index->getFields();
foreach ($index->getFulltextFields() as $field_id) {
$fields[$field_id] = $fields_info[$field_id]->getPrefixedLabel();
}
return $fields;
}
/**
* {@inheritdoc}
*/
public function init(ViewExecutable $view, DisplayPluginBase $display, array &$options = NULL) {
parent::init($view, $display, $options);
$base_table = $view->storage->get('base_table');
$this->index = SearchApiQuery::getIndexFromTable($base_table, $this->getEntityManager());
if (!$this->index) {
throw new \InvalidArgumentException(new FormattableMarkup('View %view is not based on Search API but tries to use its row plugin.', array('%view' => $view->storage->label())));
}
}
