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-rw-r--r--odb/mysql/traits.hxx35
1 files changed, 22 insertions, 13 deletions
diff --git a/odb/mysql/traits.hxx b/odb/mysql/traits.hxx
index e823eda..41a754f 100644
--- a/odb/mysql/traits.hxx
+++ b/odb/mysql/traits.hxx
@@ -53,8 +53,20 @@ namespace odb
id_set
};
+ //
+ // value_traits
+ //
+
template <typename T, typename I, database_type_id>
- class value_traits
+ struct default_value_traits;
+
+ template <typename T, typename I, database_type_id ID>
+ class value_traits: public default_value_traits<T, I, ID>
+ {
+ };
+
+ template <typename T, typename I, database_type_id>
+ class default_value_traits
{
public:
typedef T value_type;
@@ -107,25 +119,25 @@ namespace odb
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
std::string, details::buffer, id_string>: public string_value_traits
{
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
std::string, details::buffer, id_decimal>: public string_value_traits
{
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
std::string, details::buffer, id_enum>: public string_value_traits
{
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
std::string, details::buffer, id_set>: public string_value_traits
{
};
@@ -151,25 +163,25 @@ namespace odb
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
const char*, details::buffer, id_string>: public c_string_value_traits
{
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
const char*, details::buffer, id_decimal>: public c_string_value_traits
{
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
const char*, details::buffer, id_enum>: public c_string_value_traits
{
};
template <>
- class LIBODB_MYSQL_EXPORT value_traits<
+ class LIBODB_MYSQL_EXPORT default_value_traits<
const char*, details::buffer, id_set>: public c_string_value_traits
{
};
@@ -182,11 +194,8 @@ namespace odb
struct default_type_traits;
template <typename T>
- class type_traits
+ class type_traits: public default_type_traits<T>
{
- public:
- static const database_type_id db_type_id =
- default_type_traits<T>::db_type_id;
};
// Integral types.