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authorBoris Kolpackov <boris@codesynthesis.com>2012-09-05 11:59:26 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2012-09-05 11:59:26 +0200
commita79bd67be617041cd65e8bdf988e8d8da523fd43 (patch)
treefc7efe6964b0b8995910ae1e0aeed84a58db0fec /odb/boost/uuid/sqlite
parent0d8fddcf11df9eb731f1abef070211b6c8733e8a (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/sqlite')
-rw-r--r--odb/boost/uuid/sqlite/uuid-mapping.hxx23
-rw-r--r--odb/boost/uuid/sqlite/uuid-traits.hxx83
2 files changed, 106 insertions, 0 deletions
diff --git a/odb/boost/uuid/sqlite/uuid-mapping.hxx b/odb/boost/uuid/sqlite/uuid-mapping.hxx
new file mode 100644
index 0000000..32f0bac
--- /dev/null
+++ b/odb/boost/uuid/sqlite/uuid-mapping.hxx
@@ -0,0 +1,23 @@
+// file : odb/boost/uuid/sqlite/uuid-mapping.hxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_BOOST_UUID_SQLITE_UUID_MAPPING_HXX
+#define ODB_BOOST_UUID_SQLITE_UUID_MAPPING_HXX
+
+#include <boost/version.hpp>
+
+// UUID library is available since 1.42.0.
+//
+#if BOOST_VERSION >= 104200
+
+#include <boost/uuid/uuid.hpp>
+
+// By default map boost::uuids::uuid to SQLite BLOB and use NULL to
+// represent nil UUIDs. If NULL is disabled (e.g., at the member level),
+// then we store the nil UUID (i.e., all bytes are zero).
+//
+#pragma db value(boost::uuids::uuid) type("BLOB") null
+
+#endif // BOOST_VERSION
+#endif // ODB_BOOST_UUID_SQLITE_UUID_MAPPING_HXX
diff --git a/odb/boost/uuid/sqlite/uuid-traits.hxx b/odb/boost/uuid/sqlite/uuid-traits.hxx
new file mode 100644
index 0000000..2b11b4e
--- /dev/null
+++ b/odb/boost/uuid/sqlite/uuid-traits.hxx
@@ -0,0 +1,83 @@
+// file : odb/boost/uuid/sqlite/uuid-traits.hxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_BOOST_UUID_SQLITE_UUID_TRAITS_HXX
+#define ODB_BOOST_UUID_SQLITE_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 <cassert>
+
+#include <boost/uuid/uuid.hpp>
+#include <boost/uuid/nil_generator.hpp>
+
+#include <odb/sqlite/traits.hxx>
+
+namespace odb
+{
+ namespace sqlite
+ {
+ template <>
+ struct default_value_traits< ::boost::uuids::uuid, id_blob>
+ {
+ typedef ::boost::uuids::uuid value_type;
+ typedef value_type query_type;
+ typedef details::buffer image_type;
+
+ static void
+ set_value (value_type& v,
+ const details::buffer& b,
+ std::size_t n,
+ bool is_null)
+ {
+ if (!is_null)
+ {
+ assert (n == 16);
+ std::memcpy (v.data, b.data (), 16);
+ }
+ else
+ v = ::boost::uuids::nil_uuid ();
+ }
+
+ static void
+ set_image (details::buffer& b,
+ std::size_t& n,
+ 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)
+ {
+ n = 16;
+
+ if (n > b.capacity ())
+ b.capacity (n);
+
+ std::memcpy (b.data (), v.data, n);
+ }
+ }
+ };
+
+ template <>
+ struct default_type_traits< ::boost::uuids::uuid>
+ {
+ static const database_type_id db_type_id = id_blob;
+ };
+ }
+}
+
+#include <odb/post.hxx>
+
+#endif // BOOST_VERSION
+#endif // ODB_BOOST_UUID_SQLITE_UUID_TRAITS_HXX