common/const-object/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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233

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

// Test database operations with const objects.
//

#include <memory>   // std::auto_ptr
#include <cassert>
#include <iostream>

#include <odb/database.hxx>
#include <odb/session.hxx>
#include <odb/transaction.hxx>

#include <common/common.hxx>

#include "test.hxx"
#include "test-odb.hxx"

using namespace std;
using namespace odb::core;

int
main (int argc, char* argv[])
{
  try
  {
    auto_ptr<database> db (create_database (argc, argv));

    aggr a (1);
    aggr ca_ (2); // o1 and o2 are NULL
    const aggr& ca (ca_);

    obj1* o1 (new obj1 (1));
    obj1* co1_ (new obj1 (2));
    const obj1* co1 (co1_);
    a.o1 = co1;

#ifdef HAVE_CXX11
    unique_ptr<obj2> o2 (new obj2 (1));
#else
    auto_ptr<obj2> o2 (new obj2 (1));
#endif
    obj2* co2_ (new obj2 (2));
    a.o2.reset (co2_);
#ifdef HAVE_CXX11
    unique_ptr<const obj2>& co2 (a.o2);
#else
    auto_ptr<const obj2>& co2 (a.o2);
#endif

    // persist via references
    //
    {
      transaction t (db->begin ());
      db->persist (*o1);
      db->persist (*co1);
      db->persist (*o2);
      db->persist (*co2);
      db->persist (a);
      db->persist (ca);
      t.commit ();
    }

    // persist via pointers
    //
    o1->id += 2;
    co1_->id += 2;
    o2->id += 2;
    co2_->id += 2;

    {
      transaction t (db->begin ());
      db->persist (o1);
      db->persist (co1);
      db->persist (o2);
      db->persist (co2);
      t.commit ();
    }

    // load & compare
    //
    {
      transaction t (db->begin ());

#ifdef HAVE_CXX11
      unique_ptr<aggr> a (db->load<aggr> (1));
      unique_ptr<const aggr> ca (db->load<aggr> (2));
#else
      auto_ptr<aggr> a (db->load<aggr> (1));
      auto_ptr<const aggr> ca (db->load<aggr> (2));
#endif

      t.commit ();

      assert (a->o1->id == 2);
      assert (a->o2->id == 2);

      assert (ca->o1 == 0);
      assert (ca->o2.get () == 0);
    }

    // update via references
    //
    {
      transaction t (db->begin ());
      db->update (*o1);
      db->update (*co1);
      db->update (*o2);
      db->update (*co2);
      db->update (a);
      db->update (ca);
      t.commit ();
    }

    // update via pointers
    //
    {
      transaction t (db->begin ());
      db->update (o1);
      db->update (co1);
      db->update (o2);
      db->update (co2);
      t.commit ();
    }

    // query
    //
    typedef odb::query<obj1> query1;
    typedef odb::query<obj2> query2;

    typedef odb::result<const obj1> result1;
    typedef odb::result<const obj2> result2;

    {
      transaction t (db->begin ());
      result1 r1 (db->query<obj1> (query1::id < 3));
      // odb::result<obj1> ur (r1); // error
      size_t n1 (0);

      for (result1::iterator i (r1.begin ()); i != r1.end (); ++i)
      {
        // i->f (); // error
        i->cf ();
        // obj1* p (i.load ()); // error
        const obj1* p (i.load ());
        obj1 o (0);
        i.load (o);
        assert (p->id == o.id);
        delete p;
        n1++;
      }

      assert (n1 == 2);

      result2 r2 (db->query<obj2> (query2::id < 3));
      size_t n2 (0);

      for (result2::iterator i (r2.begin ()); i != r2.end (); ++i)
      {
        // i->f (); // error
        i->cf ();
#ifdef HAVE_CXX11
        //unique_ptr<obj2> p (i.load ()); // error
        unique_ptr<const obj2> p (i.load ());
#else
        // auto_ptr<obj2> p (i.load ()); // error
        auto_ptr<const obj2> p (i.load ());
#endif
        obj2 o (0);
        i.load (o);
        assert (p->id == o.id);
        n2++;
      }

      assert (n2 == 2);

      t.commit ();
    }

    // erase via references
    //
    {
      transaction t (db->begin ());
      db->erase (*o1);
      db->erase (*co1);
      db->erase (*o2);
      db->erase (*co2);
      db->erase (a);
      db->erase (ca);
      t.commit ();
    }

    // erase via pointers
    //
    o1->id -= 2;
    co1_->id -= 2;
    o2->id -= 2;
    co2_->id -= 2;

    {
      transaction t (db->begin ());
      db->erase (o1);
      db->erase (co1);
      db->erase (o2);
      db->erase (co2);
      t.commit ();
    }

    // Test session and const/non-const object handling
    //
    {
      session s;
      transaction t (db->begin ());

      obj1 o1 (1);
      const obj1& co1 (o1);
      db->persist (co1);

      assert (db->load<obj1> (1) == &o1);

      t.commit ();
    }

    delete o1;
  }
  catch (const odb::exception& e)
  {
    cerr << e.what () << endl;
    return 1;
  }
}