From f0a8672c2128041001d6badba42ff672126581bb Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 5 Apr 2013 10:16:48 +0200
Subject: Generate alter column migration statements

---
 evolution/alter-column/model.hxx | 50 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 evolution/alter-column/model.hxx

(limited to 'evolution/alter-column/model.hxx')

diff --git a/evolution/alter-column/model.hxx b/evolution/alter-column/model.hxx
new file mode 100644
index 0000000..c244eb0
--- /dev/null
+++ b/evolution/alter-column/model.hxx
@@ -0,0 +1,50 @@
+// file      : evolution/alter-column/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 <string>
+
+#include <odb/core.hxx>
+#include <odb/nullable.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)
+{
+  #pragma db object
+  struct object
+  {
+    object (unsigned long id = 0): id_ (id) {}
+
+    #pragma db id
+    unsigned long id_;
+
+#if MODEL_VERSION == 2
+    odb::nullable<std::string> str;
+
+    unsigned long num;
+
+    #pragma db null
+    unsigned long dummy; // Test multiple ALTER COLUMN clauses.
+#else
+    // Use nullable to be able to access during migration.
+    //
+    #pragma db not_null
+    odb::nullable<std::string> str;
+
+    odb::nullable<unsigned long> num;
+
+    unsigned long dummy;
+#endif
+  };
+}
+
+#undef MODEL_NAMESPACE
+#undef MODEL_NAMESPACE_IMPL
-- 
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