// file : mapping/traits-mysql.hxx // copyright : not copyrighted - public domain #ifndef TRAITS_MYSQL_HXX #define TRAITS_MYSQL_HXX // // MySQL implementation. // #include <cstddef> // std::size_t #include <cstring> // std::strncmp, std::memcpy #include <odb/mysql/traits.hxx> #include "person.hxx" // date namespace odb { namespace mysql { template <> class value_traits<bool, id_string> { public: typedef bool value_type; typedef bool query_type; typedef details::buffer image_type; static void set_value (bool& v, const details::buffer& b, std::size_t n, bool is_null) { v = (!is_null && n == 4 && std::strncmp ("true", b.data (), n) == 0); } static void set_image (details::buffer& b, std::size_t& n, bool& is_null, bool v) { is_null = false; n = v ? 4 : 5; if (n > b.capacity ()) b.capacity (n); std::memcpy (b.data (), (v ? "true" : "false"), n); } }; template <> class value_traits<date, id_date> { public: typedef date value_type; typedef date query_type; typedef MYSQL_TIME image_type; static void set_value (date& v, const MYSQL_TIME& i, bool is_null) { if (!is_null) v = date (i.year, i.month, i.day); else v = date (0, 0, 0); } static void set_image (MYSQL_TIME& i, bool& is_null, const date& v) { is_null = false; i.neg = false; i.year = v.year (); i.month = v.month (); i.day = v.day (); } }; } } #endif // TRAITS_MYSQL_HXX