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/driver.cxx | 116 +++++++++++++++++++++++++++++++
evolution/alter-column/makefile | 142 ++++++++++++++++++++++++++++++++++++++
evolution/alter-column/model.hxx | 50 ++++++++++++++
evolution/alter-column/test1.hxx | 12 ++++
evolution/alter-column/test2.hxx | 12 ++++
evolution/makefile | 15 ++--
6 files changed, 340 insertions(+), 7 deletions(-)
create mode 100644 evolution/alter-column/driver.cxx
create mode 100644 evolution/alter-column/makefile
create mode 100644 evolution/alter-column/model.hxx
create mode 100644 evolution/alter-column/test1.hxx
create mode 100644 evolution/alter-column/test2.hxx
(limited to 'evolution')
diff --git a/evolution/alter-column/driver.cxx b/evolution/alter-column/driver.cxx
new file mode 100644
index 0000000..28e6e7c
--- /dev/null
+++ b/evolution/alter-column/driver.cxx
@@ -0,0 +1,116 @@
+// 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;
+ }
+}
diff --git a/evolution/alter-column/makefile b/evolution/alter-column/makefile
new file mode 100644
index 0000000..2a35005
--- /dev/null
+++ b/evolution/alter-column/makefile
@@ -0,0 +1,142 @@
+# file : evolution/alter-column/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
+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 test1.sql model.xml
+gen1 := $(addprefix $(out_base)/,$(genf1))
+
+genf2 := test2-odb.hxx test2-odb.ixx test2-odb.cxx test2.sql \
+test2-002-pre.sql test2-002-post.sql test2-003-pre.sql test2-003-post.sql
+gen2 := $(addprefix $(out_base)/,$(genf2))
+
+genf := $(genf1) $(genf2)
+gen := $(gen1) $(gen2)
+
+$(gen): $(odb)
+$(gen): odb := $(odb)
+$(gen) $(dist): odb_common_options = --database $(db_id) --generate-query \
+--generate-schema --omit-create --at-once --table-prefix evo_alter_c_
+$(gen1) $(dist): export odb_options1 = $(odb_common_options) --schema-name \
+test1 --init-changelog --suppress-migration
+$(gen2) $(dist): export odb_options2 = $(odb_common_options) --schema-name \
+test2
+$(gen1): odb_options += $(odb_options1) --changelog $(out_base)/model.xml
+$(gen2): odb_options += $(odb_options2) --changelog $(out_base)/model.xml
+$(gen): cpp_options := -I$(src_base)
+$(gen): $(common.l.cpp-options)
+
+$(call include-dep,$(cxx_od),$(cxx_obj),$(gen))
+
+# Make sure test2.hxx is compiled before test1.hxx since they share the
+# changelog. Also add dependency on model.hxx
+#
+$(gen2): $(gen1)
+$(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)/test1.sql)
+ $(call schema,$(out_base)/test2.sql)
+ # Base schema (-post is always empty).
+ $(call schema,$(out_base)/test2-002-pre.sql)
+ $(call message,test $< base,$< --options-file $(dcf_root)/db.options 1)
+ # Migration.
+ $(call schema,$(out_base)/test2-003-pre.sql)
+ $(call message,test $< migration,$< --options-file $(dcf_root)/db.options 2)
+ $(call schema,$(out_base)/test2-003-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.
+ $(call message,,rm -f $(out_base)/test2-*.sql) # Migration files.
+
+# Generated .gitignore.
+#
+ifeq ($(out_base),$(src_base))
+$(driver): | $(out_base)/.gitignore
+
+$(out_base)/.gitignore: files := driver $(genf)
+$(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/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
diff --git a/evolution/alter-column/test1.hxx b/evolution/alter-column/test1.hxx
new file mode 100644
index 0000000..cf08732
--- /dev/null
+++ b/evolution/alter-column/test1.hxx
@@ -0,0 +1,12 @@
+// file : evolution/alter-column/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
+
+#define MODEL_VERSION 2
+#include "model.hxx"
+#undef MODEL_VERSION
+
+#endif // TEST1_HXX
diff --git a/evolution/alter-column/test2.hxx b/evolution/alter-column/test2.hxx
new file mode 100644
index 0000000..e99a465
--- /dev/null
+++ b/evolution/alter-column/test2.hxx
@@ -0,0 +1,12 @@
+// file : evolution/alter-column/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 3
+#include "model.hxx"
+#undef MODEL_VERSION
+
+#endif // TEST2_HXX
diff --git a/evolution/makefile b/evolution/makefile
index 7560ec0..6c38b0f 100644
--- a/evolution/makefile
+++ b/evolution/makefile
@@ -4,13 +4,14 @@
include $(dir $(lastword $(MAKEFILE_LIST)))../build/bootstrap.make
-tests := \
-add-table \
-drop-table \
-add-column \
-drop-column \
-add-index \
-drop-index \
+tests := \
+add-table \
+drop-table \
+add-column \
+drop-column \
+alter-column \
+add-index \
+drop-index \
template
default := $(out_base)/
--
cgit v1.1