AJAX find persons

AjaxFindPersonsSnippet.php

    /**
     * Returns persons via AJAX.
     * @return mixed JSON data
     */
    public function actionFindAjax($q = null) {
        if(Yii::$app->request->isAjax && !empty($q)) {
            $out = ['results' => ['id' => '', 'text' => '']];
            Yii::$app->response->format = Response::FORMAT_JSON;
            $query = new Query();
            $result = $query->select([
                'id' => 'person.id',
                'text' => "CONCAT(person.fio, ' (', department.name, ', ', job.title, ')' )"
                ])
                ->from('person')
                ->leftJoin('job', 'person.job_id = job.id')
                ->leftJoin('department', 'job.department_id = department.id')
                ->orderBy('person.fio')
                ->where(['like', 'person.fio', $q])
                ->all();
            $out['results'] = array_values($result);
            return $out;
        }
        return false;
    }