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authorBoris Kolpackov <boris@codesynthesis.com>2013-04-05 10:16:48 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2013-04-10 18:46:46 +0200
commitf0a8672c2128041001d6badba42ff672126581bb (patch)
treee22750f2dbaf8602c5d14565d93f5a7fa4232704 /evolution/alter-column/driver.cxx
parenta72909d40ce4b10d8d5950bec8f52c8a561e4596 (diff)
Generate alter column migration statements
Diffstat (limited to 'evolution/alter-column/driver.cxx')
-rw-r--r--evolution/alter-column/driver.cxx116
1 files changed, 116 insertions, 0 deletions
diff --git a/evolution/alter-column/driver.cxx b/evolution/alter-column/driver.cxx
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+// file : evolution/alter-column/driver.cxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+// Test altering a column.
+//
+
+#include <memory> // std::auto_ptr
+#include <cassert>
+#include <iostream>
+
+#include <odb/database.hxx>
+#include <odb/transaction.hxx>
+
+#include <common/common.hxx>
+
+#include "test1.hxx"
+#include "test2.hxx"
+#include "test1-odb.hxx"
+#include "test2-odb.hxx"
+
+using namespace std;
+using namespace odb::core;
+
+int
+main (int argc, char* argv[])
+{
+ try
+ {
+ auto_ptr<database> db (create_database (argc, argv));
+
+ // 1 - base version
+ // 2 - migration
+ // 3 - current version
+ //
+ unsigned short pass (*argv[argc - 1] - '0');
+
+ switch (pass)
+ {
+ case 1:
+ {
+ using namespace v2;
+
+ object o (1);
+ o.num = 123;
+
+ {
+ transaction t (db->begin ());
+ db->persist (o);
+ t.commit ();
+ }
+ break;
+ }
+ case 2:
+ {
+ using namespace v3;
+
+ // NULL is already in effect; NOT NULL is not yet.
+ //
+ {
+ transaction t (db->begin ());
+ auto_ptr<object> p (db->load<object> (1));
+
+ assert (!p->str);
+ assert (p->num && *p->num == 123);
+
+ // Migration.
+ //
+ p->str = "abc";
+ p->num.reset ();
+ db->update (*p);
+
+ t.commit ();
+ }
+ break;
+ }
+ case 3:
+ {
+ using namespace v3;
+
+ {
+ transaction t (db->begin ());
+ auto_ptr<object> p (db->load<object> (1));
+
+ assert (p->str && *p->str == "abc");
+ assert (!p->num);
+
+ t.commit ();
+ }
+
+ // NOT NULL is now in effect.
+ //
+ try
+ {
+ object o2 (2);
+
+ transaction t (db->begin ());
+ db->persist (o2);
+ assert (false);
+ }
+ catch (const odb::exception& ) {}
+ break;
+ }
+ default:
+ {
+ cerr << "unknown pass number '" << argv[argc - 1] << "'" << endl;
+ return 1;
+ }
+ }
+ }
+ catch (const odb::exception& e)
+ {
+ cerr << e.what () << endl;
+ return 1;
+ }
+}