/**
* Pluck a certain field out of an ES response.
*
* @see sp_results_pluck
*
* @param int|string $field A field from the retuls to place instead of the entire object.
* @param bool $as_single Return as single (true) or an array (false). Defaults to true.
* @return array
*/
public function pluck_field($field = null, $as_single = true)
{
$return = array();
if (!$field) {
$field = reset($this->es_args['fields']);
}
return sp_results_pluck($this->search_results, $field, $as_single);
}
function _search_and_get_field($args, $field = 'post_name')
{
$args = wp_parse_args($args, array('fields' => $field));
$posts = sp_wp_search($args, true);
return sp_results_pluck($posts, $field);
}
