diff options
Diffstat (limited to 'mssql/custom/traits.hxx')
| -rw-r--r-- | mssql/custom/traits.hxx | 61 |
1 files changed, 60 insertions, 1 deletions
diff --git a/mssql/custom/traits.hxx b/mssql/custom/traits.hxx index 421f288..a35fa49 100644 --- a/mssql/custom/traits.hxx +++ b/mssql/custom/traits.hxx @@ -12,12 +12,71 @@ #include <odb/mssql/traits.hxx> -#include "test.hxx" // point +#include "test.hxx" // variant, point namespace odb { namespace mssql { + template <> + class value_traits<variant, id_long_string> + { + public: + typedef variant value_type; + typedef variant query_type; + typedef long_callback image_type; + + static void + set_value (variant& v, + result_callback_type& cb, + void*& context) + { + cb = &result_callback; + context = &v; + } + + static void + set_image (param_callback_type& cb, + const void*& context, + bool& is_null, + const variant& v) + { + is_null = false; + cb = ¶m_callback; + context = &v; + } + + static void + param_callback (const void* context, + std::size_t* position, + const void** buffer, + std::size_t* size, + chunk_type* chunk, + void* tmp_buffer, + std::size_t tmp_capacity); + + static void + result_callback (void* context, + std::size_t* position, + void** buffer, + std::size_t* size, + chunk_type chunk, + std::size_t size_left, + void* tmp_buffer, + std::size_t tmp_capacity); + }; + + template <> + struct type_traits<variant> + { + static const database_type_id db_type_id = id_long_string; + + struct conversion + { + static const char* to () {return "dbo.string_to_variant((?))";} + }; + }; + #if !defined(MSSQL_SERVER_VERSION) || MSSQL_SERVER_VERSION >= 1000 template <> class value_traits<point, id_string> |