diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2012-09-05 11:59:26 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2012-09-05 11:59:26 +0200 |
commit | a79bd67be617041cd65e8bdf988e8d8da523fd43 (patch) | |
tree | fc7efe6964b0b8995910ae1e0aeed84a58db0fec /odb/boost/uuid/pgsql/uuid-traits.hxx | |
parent | 0d8fddcf11df9eb731f1abef070211b6c8733e8a (diff) |
Support for Boost uuid persistence
New Boost sub-profile: uuid. New test: boost/common/uuid. Updated the
boost example to use uuid as an object id.
Diffstat (limited to 'odb/boost/uuid/pgsql/uuid-traits.hxx')
-rw-r--r-- | odb/boost/uuid/pgsql/uuid-traits.hxx | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/odb/boost/uuid/pgsql/uuid-traits.hxx b/odb/boost/uuid/pgsql/uuid-traits.hxx new file mode 100644 index 0000000..675452c --- /dev/null +++ b/odb/boost/uuid/pgsql/uuid-traits.hxx @@ -0,0 +1,67 @@ +// file : odb/boost/uuid/pgsql/uuid-traits.hxx +// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_BOOST_UUID_PGSQL_UUID_TRAITS_HXX +#define ODB_BOOST_UUID_PGSQL_UUID_TRAITS_HXX + +#include <boost/version.hpp> + +// UUID library is available since 1.42.0. +// +#if BOOST_VERSION >= 104200 + +#include <odb/pre.hxx> + +#include <cstring> // std::memcpy + +#include <boost/uuid/uuid.hpp> +#include <boost/uuid/nil_generator.hpp> + +#include <odb/pgsql/traits.hxx> + +namespace odb +{ + namespace pgsql + { + template <> + class default_value_traits< ::boost::uuids::uuid, id_uuid> + { + public: + typedef ::boost::uuids::uuid value_type; + typedef value_type query_type; + typedef unsigned char* image_type; + + static void + set_value (value_type& v, const unsigned char* i, bool is_null) + { + if (!is_null) + std::memcpy (v.data, i, 16); + else + v = ::boost::uuids::nil_uuid (); + } + + static void + set_image (unsigned char* i, bool& is_null, const value_type& v) + { + // If we can, store nil as NULL. Otherwise, store it as a value. + // + is_null = is_null && v.is_nil (); + + if (!is_null) + std::memcpy (i, v.data, 16); + } + }; + + template <> + struct default_type_traits< ::boost::uuids::uuid> + { + static const database_type_id db_type_id = id_uuid; + }; + } +} + +#include <odb/post.hxx> + +#endif // BOOST_VERSION +#endif // ODB_BOOST_UUID_PGSQL_UUID_TRAITS_HXX |