mysql_prepared_result.hpp

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#ifndef NEFORCE_DATABASE_MYSQL_PREPARED_RESULT_HPP__
#define NEFORCE_DATABASE_MYSQL_PREPARED_RESULT_HPP__

 
#ifdef NEFORCE_SUPPORT_MYSQL
#    include <mysql/mysql.h>
#    include "NeForce/db/db_interface.hpp"
NEFORCE_BEGIN_NAMESPACE__



class NEFORCE_API mysql_prepared_result final : public idb_tb_result {
private:
    ::MYSQL_STMT* stmt_ = nullptr;    
    ::MYSQL_RES* metadata_ = nullptr; 
    uint32_t column_count_ = 0;       
    uint64_t row_count_ = 0;          
    bool has_current_row_ = false;    
 
    unique_ptr<vector<string_view>> column_names_ = make_unique<vector<string_view>>();               
    unique_ptr<vector<::enum_field_types>> column_types_ = make_unique<vector<::enum_field_types>>(); 
 
    unique_ptr<vector<::MYSQL_BIND>> bind_results_ = make_unique<vector<::MYSQL_BIND>>(); 
    unique_ptr<vector<vector<char>>> buffers_ = make_unique<vector<vector<char>>>();      
    unique_ptr<vector<unsigned long>> lengths_ = make_unique<vector<unsigned long>>();    
    unique_ptr<vector<bool>> is_null_ = make_unique<vector<bool>>();                      
    unique_ptr<vector<bool>> is_error_ = make_unique<vector<bool>>();                     
 
    void initialize_bindings() const;
 
public:
    explicit mysql_prepared_result(::MYSQL_STMT* stmt);

    ~mysql_prepared_result() override;
 
    mysql_prepared_result(const mysql_prepared_result&) = delete;
    mysql_prepared_result& operator=(const mysql_prepared_result&) = delete;

    NEFORCE_NODISCARD bool empty() const override { return row_count_ == 0; }

    bool next() override;

    NEFORCE_NODISCARD size_type row_count() const override { return row_count_; }

    NEFORCE_NODISCARD size_type column_count() const override { return column_count_; }

    NEFORCE_NODISCARD const vector<string_view>& column_names() const override { return *column_names_; }
 
    NEFORCE_NODISCARD column_meta column_metadata(size_type n) const override;

    NEFORCE_NODISCARD const vector<::enum_field_types>& column_types() const { return *column_types_; }

    NEFORCE_NODISCARD string_view get(size_type n) const override;

    NEFORCE_NODISCARD bool get_bool(size_type n) const override;

    NEFORCE_NODISCARD int16_t get_int16(size_type n) const override;

    NEFORCE_NODISCARD int32_t get_int32(size_type n) const override;

    NEFORCE_NODISCARD int64_t get_int64(size_type n) const override;

    NEFORCE_NODISCARD float32_t get_float32(size_type n) const override;

    NEFORCE_NODISCARD float64_t get_float64(size_type n) const override;

    NEFORCE_NODISCARD decimal_t get_decimal(size_type n) const override;

    NEFORCE_NODISCARD vector<char> get_blob(size_type n) const override;

    NEFORCE_NODISCARD uint64_t get_bit(size_type n) const override;

    NEFORCE_NODISCARD date get_date(size_type n) const override;

    NEFORCE_NODISCARD time get_time(size_type n) const override;

    NEFORCE_NODISCARD datetime get_datetime(size_type n) const override;

    NEFORCE_NODISCARD timestamp get_timestamp(size_type n) const override;
};
 // MySQL
 // Database
 
NEFORCE_END_NAMESPACE__
#endif
#endif // NEFORCE_DATABASE_MYSQL_PREPARED_RESULT_HPP__