From 516523183fad016a26c7400d784eb9c0343b7964 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 3 Apr 2013 11:22:42 +0200
Subject: Generate add/drop table migration statements

---
 evolution/template/model.hxx | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 evolution/template/model.hxx

(limited to 'evolution/template/model.hxx')

diff --git a/evolution/template/model.hxx b/evolution/template/model.hxx
new file mode 100644
index 0000000..ef6c9d0
--- /dev/null
+++ b/evolution/template/model.hxx
@@ -0,0 +1,41 @@
+// file      : evolution/template/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 == 3
+  #pragma db object
+  struct object
+  {
+    #pragma db id auto
+    unsigned long id_;
+  };
+#endif
+
+  // The presence of this object makes sure that there are no empty
+  // changesets and we get the complete set of migration files.
+  //
+  #pragma db object
+  struct dummy
+  {
+    dummy (unsigned long id = 0): id_ (id) {}
+
+    #pragma db id
+    unsigned long id_;
+  };
+}
+
+#undef MODEL_NAMESPACE
+#undef MODEL_NAMESPACE_IMPL
-- 
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