From 8653e24fba1721fe4a87397b31f911d7fe33f32c Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 25 Apr 2013 10:46:33 +0200
Subject: Add support for data migration
---
evolution/data/driver.cxx | 181 ++++++++++++++++++++++++++++++++++++++++++++++
evolution/data/makefile | 147 +++++++++++++++++++++++++++++++++++++
evolution/data/model.hxx | 46 ++++++++++++
evolution/data/test1.hxx | 10 +++
evolution/data/test2.hxx | 12 +++
evolution/data/test3.hxx | 12 +++
evolution/makefile | 1 +
7 files changed, 409 insertions(+)
create mode 100644 evolution/data/driver.cxx
create mode 100644 evolution/data/makefile
create mode 100644 evolution/data/model.hxx
create mode 100644 evolution/data/test1.hxx
create mode 100644 evolution/data/test2.hxx
create mode 100644 evolution/data/test3.hxx
(limited to 'evolution')
diff --git a/evolution/data/driver.cxx b/evolution/data/driver.cxx
new file mode 100644
index 0000000..0a700c7
--- /dev/null
+++ b/evolution/data/driver.cxx
@@ -0,0 +1,181 @@
+// file : evolution/data/driver.cxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+// Test data migration support.
+//
+
+#include <memory> // std::auto_ptr
+#include <cassert>
+#include <iostream>
+
+#include <odb/database.hxx>
+#include <odb/transaction.hxx>
+#include <odb/schema-catalog.hxx>
+
+#include <common/config.hxx> // DATABASE_XXX, HAVE_CXX11
+#include <common/common.hxx>
+
+#include "test2.hxx"
+#include "test3.hxx"
+#include "test2-odb.hxx"
+#include "test3-odb.hxx"
+
+using namespace std;
+using namespace odb::core;
+
+void
+migrate1 (database& db)
+{
+ using namespace v2;
+ using namespace v3;
+
+ auto_ptr<object1> o1 (db.load<object1> (1));
+ object2 o2 (1);
+ o2.num = o1->num;
+ db.persist (o2);
+}
+
+void
+migrate2 (database& db)
+{
+ using namespace v2;
+ using namespace v3;
+
+ auto_ptr<object1> o1 (db.load<object1> (2));
+ object2 o2 (2);
+ o2.num = o1->num;
+ db.persist (o2);
+}
+
+static const data_migration_entry migrate2_entry (3, &migrate2);
+
+int
+main (int argc, char* argv[])
+{
+ schema_catalog::data_migration_function (3, &migrate1);
+
+#ifdef HAVE_CXX11
+ schema_catalog::data_migration_function (
+ 3,
+ [] (database& db)
+ {
+ using namespace v2;
+ using namespace v3;
+
+ auto_ptr<object1> o1 (db.load<object1> (11));
+ object2 o2 (11);
+ o2.num = o1->num;
+ db.persist (o2);
+ });
+#endif
+
+ try
+ {
+ auto_ptr<database> db (create_database (argc, argv, false));
+ bool embedded (schema_catalog::exists (*db));
+
+ // 1 - base version
+ // 2 - migration
+ // 3 - current version
+ //
+ unsigned short pass (*argv[argc - 1] - '0');
+
+ switch (pass)
+ {
+ case 1:
+ {
+ using namespace v2;
+
+ if (embedded)
+ {
+ transaction t (db->begin ());
+ schema_catalog::drop_schema (*db);
+ schema_catalog::drop_schema (*db, "2");
+ schema_catalog::create_schema (*db, "", false);
+ schema_catalog::migrate_schema (*db, 2);
+ t.commit ();
+ }
+
+ {
+ transaction t (db->begin ());
+
+ {
+ object1 o1 (1);
+ o1.num = 123;
+ db->persist (o1);
+ }
+
+ {
+ object1 o1 (2);
+ o1.num = 123;
+ db->persist (o1);
+ }
+
+#ifdef HAVE_CXX11
+ {
+ object1 o1 (11);
+ o1.num = 123;
+ db->persist (o1);
+ }
+#endif
+ t.commit ();
+ }
+ break;
+ }
+ case 2:
+ {
+ {
+ transaction t (db->begin ());
+
+ if (embedded)
+ schema_catalog::migrate (*db);
+ else
+ schema_catalog::migrate_data (*db);
+
+ t.commit ();
+ }
+
+ break;
+ }
+ case 3:
+ {
+ using namespace v3;
+
+ {
+ transaction t (db->begin ());
+
+ {
+ auto_ptr<object2> o2 (db->load<object2> (1));
+ assert (o2->num == 123);
+ }
+
+ {
+ auto_ptr<object2> o2 (db->load<object2> (2));
+ assert (o2->num == 123);
+ }
+
+#ifdef HAVE_CXX11
+ {
+ auto_ptr<object2> o2 (db->load<object2> (11));
+ assert (o2->num == 123);
+ }
+#endif
+ t.commit ();
+ }
+
+ break;
+ }
+ default:
+ {
+ cerr << "unknown pass number '" << argv[argc - 1] << "'" << endl;
+ return 1;
+ }
+ }
+ }
+ catch (const odb::exception& e)
+ {
+ cerr << e.what () << endl;
+ return 1;
+ }
+}
diff --git a/evolution/data/makefile b/evolution/data/makefile
new file mode 100644
index 0000000..7b1cc8e
--- /dev/null
+++ b/evolution/data/makefile
@@ -0,0 +1,147 @@
+# file : evolution/data/makefile
+# copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+# license : GNU GPL v2; see accompanying LICENSE file
+
+include $(dir $(lastword $(MAKEFILE_LIST)))../../build/bootstrap.make
+
+cxx_tun := driver.cxx
+odb_hdr := test1.hxx test2.hxx test3.hxx
+cxx_obj := $(addprefix $(out_base)/,$(cxx_tun:.cxx=.o) $(odb_hdr:.hxx=-odb.o))
+cxx_od := $(cxx_obj:.o=.o.d)
+
+common.l := $(out_root)/libcommon/common/common.l
+common.l.cpp-options := $(out_root)/libcommon/common/common.l.cpp-options
+
+driver := $(out_base)/driver
+dist := $(out_base)/.dist
+test := $(out_base)/.test
+clean := $(out_base)/.clean
+
+# Import.
+#
+$(call import,\
+ $(scf_root)/import/odb/stub.make,\
+ odb: odb,odb-rules: odb_rules)
+
+# Build.
+#
+$(driver): $(cxx_obj) $(common.l)
+$(cxx_obj) $(cxx_od): cpp_options := -I$(out_base) -I$(src_base)
+$(cxx_obj) $(cxx_od): $(common.l.cpp-options)
+
+genf1 := test1-odb.hxx test1-odb.ixx test1-odb.cxx
+gen1 := $(addprefix $(out_base)/,$(genf1))
+
+genf2 := test2-odb.hxx test2-odb.ixx test2-odb.cxx
+gen2 := $(addprefix $(out_base)/,$(genf2))
+
+genf3 := test3-odb.hxx test3-odb.ixx test3-odb.cxx
+gen3 := $(addprefix $(out_base)/,$(genf3))
+
+genf := $(genf1) $(genf2) $(genf3)
+gen := $(gen1) $(gen2) $(gen3)
+
+$(gen): $(odb)
+$(gen): odb := $(odb)
+$(gen) $(dist): odb_common_options = --database $(db_id) --generate-query \
+--generate-schema --at-once --table-prefix evo_data_
+$(gen1) $(dist): export odb_options1 = $(odb_common_options) --init-changelog
+$(gen2) $(dist): export odb_options2 = $(odb_common_options) --omit-create \
+--schema-name 2 --suppress-migration
+$(gen3) $(dist): export odb_options3 = $(odb_common_options) --omit-create
+$(gen1): odb_options += $(odb_options1) --changelog $(out_base)/model.xml
+$(gen2): odb_options += $(odb_options2) --changelog $(out_base)/model.xml
+$(gen3): odb_options += $(odb_options3) --changelog $(out_base)/model.xml
+$(gen): cpp_options := -I$(src_base)
+$(gen): $(common.l.cpp-options)
+
+$(call include-dep,$(cxx_od),$(cxx_obj),$(gen))
+
+# Make sure testN.hxx are compiled serially since they share the
+# changelog. Also add dependency on model.hxx
+#
+$(gen2): $(gen1)
+$(gen3): $(gen2)
+$(gen): $(src_base)/model.hxx
+
+# Alias for default target.
+#
+$(out_base)/: $(driver)
+
+# Dist
+#
+name := $(subst /,-,$(subst $(src_root)/evolution/,,$(src_base)))
+
+$(dist): db_id := @database@
+$(dist): sources := $(cxx_tun)
+$(dist): headers := $(odb_hdr)
+$(dist): export extra_headers := model.hxx
+$(dist): export name := $(name)
+$(dist): export extra_dist := $(call vc9projs,$(name)) \
+$(call vc10projs,$(name)) $(call vc11projs,$(name))
+$(dist):
+ $(call dist-data,$(sources) $(headers) $(extra_headers))
+ $(call meta-automake,../template/Makefile.am)
+ $(call meta-vc9projs,../template/template,$(name))
+ $(call meta-vc10projs,../template/template,$(name))
+ $(call meta-vc11projs,../template/template,$(name))
+
+# Test.
+#
+$(test): $(driver)
+ # Drop everything.
+ $(call schema,$(out_base)/test3.sql)
+ $(call schema,$(out_base)/test2.sql)
+ $(call schema,$(out_base)/test1.sql)
+ # Base schema.
+ $(call schema,$(out_base)/test3-002-pre.sql)
+ $(call schema,$(out_base)/test3-002-post.sql)
+ $(call message,test $< base,$< --options-file $(dcf_root)/db.options 1)
+ # Migration.
+ $(call schema,$(out_base)/test3-003-pre.sql)
+ $(call message,test $< migration,$< --options-file $(dcf_root)/db.options 2)
+ $(call schema,$(out_base)/test3-003-post.sql)
+ # Current schema.
+ $(call message,test $< current,$< --options-file $(dcf_root)/db.options 3)
+
+# Clean.
+#
+$(clean): \
+ $(driver).o.clean \
+ $(addsuffix .cxx.clean,$(cxx_obj)) \
+ $(addsuffix .cxx.clean,$(cxx_od)) \
+ $(addprefix $(out_base)/,$(odb_hdr:.hxx=-odb.cxx.hxx.clean))
+ $(call message,,rm -f $(out_base)/model.xml) # Changelog.
+
+# Generated .gitignore.
+#
+ifeq ($(out_base),$(src_base))
+$(driver): | $(out_base)/.gitignore
+
+$(out_base)/.gitignore: files := driver model.xml $(genf)
+$(clean): $(out_base)/.gitignore.clean
+
+$(call include,$(bld_root)/git/gitignore.make)
+endif
+
+# How to.
+#
+$(call include,$(bld_root)/dist.make)
+$(call include,$(bld_root)/meta/vc9proj.make)
+$(call include,$(bld_root)/meta/vc10proj.make)
+$(call include,$(bld_root)/meta/vc11proj.make)
+$(call include,$(bld_root)/meta/automake.make)
+
+$(call include,$(bld_root)/cxx/standard.make) # cxx_standard
+ifdef cxx_standard
+$(gen): odb_options += --std $(cxx_standard)
+$(call include,$(odb_rules))
+endif
+
+$(call include,$(bld_root)/cxx/cxx-d.make)
+$(call include,$(bld_root)/cxx/cxx-o.make)
+$(call include,$(bld_root)/cxx/o-e.make)
+
+# Dependencies.
+#
+$(call import,$(src_root)/libcommon/makefile)
diff --git a/evolution/data/model.hxx b/evolution/data/model.hxx
new file mode 100644
index 0000000..db49a44
--- /dev/null
+++ b/evolution/data/model.hxx
@@ -0,0 +1,46 @@
+// 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
diff --git a/evolution/data/test1.hxx b/evolution/data/test1.hxx
new file mode 100644
index 0000000..52b1873
--- /dev/null
+++ b/evolution/data/test1.hxx
@@ -0,0 +1,10 @@
+// file : evolution/data/test1.hxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef TEST1_HXX
+#define TEST1_HXX
+
+#pragma db model version(1, 1)
+
+#endif // TEST1_HXX
diff --git a/evolution/data/test2.hxx b/evolution/data/test2.hxx
new file mode 100644
index 0000000..8aa60fe
--- /dev/null
+++ b/evolution/data/test2.hxx
@@ -0,0 +1,12 @@
+// file : evolution/data/test2.hxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef TEST2_HXX
+#define TEST2_HXX
+
+#define MODEL_VERSION 2
+#include "model.hxx"
+#undef MODEL_VERSION
+
+#endif // TEST2_HXX
diff --git a/evolution/data/test3.hxx b/evolution/data/test3.hxx
new file mode 100644
index 0000000..7decfc5
--- /dev/null
+++ b/evolution/data/test3.hxx
@@ -0,0 +1,12 @@
+// file : evolution/data/test3.hxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef TEST3_HXX
+#define TEST3_HXX
+
+#define MODEL_VERSION 3
+#include "model.hxx"
+#undef MODEL_VERSION
+
+#endif // TEST3_HXX
diff --git a/evolution/makefile b/evolution/makefile
index 98816a3..9f85cf8 100644
--- a/evolution/makefile
+++ b/evolution/makefile
@@ -17,6 +17,7 @@ drop-index \
combined \
embedded \
version \
+data \
template
default := $(out_base)/
--
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