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authorBoris Kolpackov <boris@codesynthesis.com>2013-04-25 10:46:33 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2013-04-25 10:46:33 +0200
commit8653e24fba1721fe4a87397b31f911d7fe33f32c (patch)
treee2d58807ac5efd20947912bc72fb95aaf07315cd /evolution/data/model.hxx
parent40ae3082645ed3790eb1d5d6f04fb2ca36c19187 (diff)
Add support for data migration
Diffstat (limited to 'evolution/data/model.hxx')
-rw-r--r--evolution/data/model.hxx46
1 files changed, 46 insertions, 0 deletions
diff --git a/evolution/data/model.hxx b/evolution/data/model.hxx
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+// file : evolution/data/model.hxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef MODEL_VERSION
+# error model.hxx included directly
+#endif
+
+#include <odb/core.hxx>
+
+#pragma db model version(1, MODEL_VERSION)
+
+#define MODEL_NAMESPACE_IMPL(V) v##V
+#define MODEL_NAMESPACE(V) MODEL_NAMESPACE_IMPL(V)
+
+namespace MODEL_NAMESPACE(MODEL_VERSION)
+{
+#if MODEL_VERSION == 2
+ #pragma db object
+ struct object1
+ {
+ object1 (unsigned long id = 0): id_ (id) {}
+
+ #pragma db id
+ unsigned long id_;
+
+ int num;
+ };
+#endif
+
+#if MODEL_VERSION == 3
+ #pragma db object
+ struct object2
+ {
+ object2 (unsigned long id = 0): id_ (id) {}
+
+ #pragma db id
+ unsigned long id_;
+
+ int num;
+ };
+#endif
+}
+
+#undef MODEL_NAMESPACE
+#undef MODEL_NAMESPACE_IMPL