private function insertOne(array $value)
    {
        $fields = array_keys($value);

        $sql = 'insert into `' . $this->table . '` values (';

        $sql .= implode(', ', Util::add2points($fields, true));

        $sql .= ');';

        $stmt = $this->connection->prepare($sql);

        $this->bind($stmt, $value);

        $stmt->execute();

        return (int) $stmt->rowCount();
    }