/**
* {@inheritdoc}
*/
public function column($field, $db = null)
{
if ($field === '_id') {
$command = $this->createCommand($db);
$command->queryParts['fields'] = [];
$command->queryParts['_source'] = false;
$result = $command->search();
if (empty($result['hits']['hits'])) {
return [];
}
$column = [];
foreach ($result['hits']['hits'] as $row) {
$column[] = $row['_id'];
}
return $column;
}
return parent::column($field, $db);
}
