diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2012-07-10 15:17:13 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2012-07-10 15:17:13 +0200 |
commit | c970a38889d5774f7d0f73215dfd70934524d76a (patch) | |
tree | 3421c4c00fed4cea6362b84b8a8acd8b1275e9db /odb/mysql/details/conversion.hxx | |
parent | ca6e36f6bda1d0a1dc55bc2e89609ae48bf443dd (diff) |
Add support for custom database type mapping
New pragma qualifier, map, and specifiers: as, to, from. New tests:
<database>/custom.
Diffstat (limited to 'odb/mysql/details/conversion.hxx')
-rw-r--r-- | odb/mysql/details/conversion.hxx | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/odb/mysql/details/conversion.hxx b/odb/mysql/details/conversion.hxx new file mode 100644 index 0000000..4d473f8 --- /dev/null +++ b/odb/mysql/details/conversion.hxx @@ -0,0 +1,59 @@ +// file : odb/mysql/details/conversion.hxx +// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_DETAILS_CONVERSION_HXX +#define ODB_MYSQL_DETAILS_CONVERSION_HXX + +#include <odb/mysql/traits.hxx> + +#include <odb/details/meta/answer.hxx> + +namespace odb +{ + // @@ Revise this. + // + namespace details {} + + namespace mysql + { + namespace details + { + using namespace odb::details; + + // Detect whether conversion is specified in type_traits. + // + template <typename T> + meta::yes + conversion_p_test (typename type_traits<T>::conversion*); + + template <typename T> + meta::no + conversion_p_test (...); + + template <typename T> + struct conversion_p + { + static const bool value = + sizeof (conversion_p_test<T> (0)) == sizeof (meta::yes); + }; + + template <typename T, bool = conversion_p<T>::value> + struct conversion; + + template <typename T> + struct conversion<T, true> + { + static const char* to () {return type_traits<T>::conversion::to ();} + }; + + template <typename T> + struct conversion<T, false> + { + static const char* to () {return 0;} + }; + } + } +} + +#endif // ODB_MYSQL_DETAILS_CONVERSION_HXX |