public static function getAuditTables()
    {
        $connection = Yii::$app->db;
        $schema = $connection->schema;
        $tables = $schema->getTableNames('audits');
        $map = [];
        $map[] = Yii::t('app', 'Choose');
        foreach ($tables as $table) {
            $map[$table] = $table;
        }
        return $map;
    }