public function update($fields)
    {
        // Set fields
        $this->fields($fields);

        // Resolve fields
        $fields = $this->getUpdateFieldsString();

        // Define wheres
        $where = $this->getWhereString();

        // Build query
        $this->query = 'UPDATE ' . $this->table . ' SET ' . $fields . ' '. $where;

        // Prepare statement
        $this->statement = $this->pdo->prepare($this->query);

        // Bind fields values
        $this->bindFields();

        // Bind where values
        if (count($this->wheres)) {
            $this->bindWheres();
        }

        // Execute statement
        $result = $this->statement->execute();

        // Reset values
        $this->reset();

        // Return result
        return $result;
    }