evolution/version/driver.cxx


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157

// file      : evolution/version/driver.cxx
// copyright : Copyright (c) 2009-2019 Code Synthesis Tools CC
// license   : GNU GPL v2; see accompanying LICENSE file

// Test schema version access via the database instance.
//

#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
#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;

int
main (int argc, char* argv[])
{
  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);

          assert (db->schema_version () == 0);

          schema_catalog::create_schema (*db, "", false);

          assert (db->schema_version () == 1 && !db->schema_migration ());

          schema_catalog::migrate_schema (*db, 2);
          t.commit ();
        }

        assert (db->schema_version () == 2 && !db->schema_migration ());

        {
          transaction t (db->begin ());
          object1 o1 (1);
          o1.num = 123;
          db->persist (o1);
          t.commit ();
        }
        break;
      }
    case 2:
      {
        using namespace v2;
        using namespace v3;

        if (embedded)
        {
          assert (db->schema_version () == 2 && !db->schema_migration ());

          transaction t (db->begin ());
          schema_catalog::migrate_schema_pre (*db, 3);
          t.commit ();
        }

        assert (db->schema_version () == 3 && db->schema_migration ());

        {
          transaction t (db->begin ());
          auto_ptr<object1> o1 (db->load<object1> (1));
          object2 o2 (1);
          o2.num = o1->num;
          db->persist (o2);
          t.commit ();
        }

        if (embedded)
        {
          transaction t (db->begin ());
          schema_catalog::migrate_schema_post (*db, 3);
          t.commit ();

          assert (db->schema_version () == 3 && !db->schema_migration ());
        }
        break;
      }
    case 3:
      {
        using namespace v3;

        // In transaction.
        //
        {
          transaction t (db->begin ());
          assert (db->schema_version () == 3 && !db->schema_migration ());
          t.commit ();
        }

        {
          transaction t (db->begin ());
          auto_ptr<object2> o2 (db->load<object2> (1));
          assert (o2->num == 123);
          t.commit ();
        }

        // Test the case where there is still no version table.
        //
        db->schema_version_migration (0, false);

        {
          transaction t (db->begin ());

#ifdef DATABASE_ORACLE
          db->execute ("DROP TABLE \"schema_version\"");
#else
          db->execute ("DROP TABLE schema_version");
#endif
          t.commit ();
        }

        assert (db->schema_version () == 0);
        break;
      }
    default:
      {
        cerr << "unknown pass number '" << argv[argc - 1] << "'" << endl;
        return 1;
      }
    }
  }
  catch (const odb::exception& e)
  {
    cerr << e.what () << endl;
    return 1;
  }
}