From a79bd67be617041cd65e8bdf988e8d8da523fd43 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 5 Sep 2012 11:59:26 +0200
Subject: 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.
---
 odb/boost/uuid/mysql/uuid-mapping.hxx | 23 ++++++++++
 odb/boost/uuid/mysql/uuid-traits.hxx  | 83 +++++++++++++++++++++++++++++++++++
 2 files changed, 106 insertions(+)
 create mode 100644 odb/boost/uuid/mysql/uuid-mapping.hxx
 create mode 100644 odb/boost/uuid/mysql/uuid-traits.hxx

(limited to 'odb/boost/uuid/mysql')

diff --git a/odb/boost/uuid/mysql/uuid-mapping.hxx b/odb/boost/uuid/mysql/uuid-mapping.hxx
new file mode 100644
index 0000000..7654f62
--- /dev/null
+++ b/odb/boost/uuid/mysql/uuid-mapping.hxx
@@ -0,0 +1,23 @@
+// file      : odb/boost/uuid/mysql/uuid-mapping.hxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_BOOST_UUID_MYSQL_UUID_MAPPING_HXX
+#define ODB_BOOST_UUID_MYSQL_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 MySQL BINARY(16) 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("BINARY(16)") null
+
+#endif // BOOST_VERSION
+#endif // ODB_BOOST_UUID_MYSQL_UUID_MAPPING_HXX
diff --git a/odb/boost/uuid/mysql/uuid-traits.hxx b/odb/boost/uuid/mysql/uuid-traits.hxx
new file mode 100644
index 0000000..47d5fce
--- /dev/null
+++ b/odb/boost/uuid/mysql/uuid-traits.hxx
@@ -0,0 +1,83 @@
+// file      : odb/boost/uuid/mysql/uuid-traits.hxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_BOOST_UUID_MYSQL_UUID_TRAITS_HXX
+#define ODB_BOOST_UUID_MYSQL_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/mysql/traits.hxx>
+
+namespace odb
+{
+  namespace mysql
+  {
+    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_MYSQL_UUID_TRAITS_HXX
-- 
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