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
|
// file : mysql/types/traits.hxx
// copyright : Copyright (c) 2009-2015 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef TRAITS_HXX
#define TRAITS_HXX
#include <cstring> // std::memcpy, std::memset
#include <odb/mysql/traits.hxx>
#include "test.hxx" // date_time, string_ptr
namespace odb
{
namespace mysql
{
template <database_type_id ID>
class value_traits<date_time, ID>
{
public:
typedef date_time value_type;
typedef date_time query_type;
typedef MYSQL_TIME image_type;
static void
set_value (date_time& v, const MYSQL_TIME& i, bool is_null)
{
if (!is_null)
{
v.negative = i.neg;
v.year = i.year;
v.month = i.month;
v.day = i.day;
v.hour = i.hour;
v.minute = i.minute;
v.second = i.second;
v.microseconds = static_cast<unsigned int> (i.second_part);
}
else
v = date_time ();
}
static void
set_image (MYSQL_TIME& i, bool& is_null, const date_time& v)
{
is_null = false;
i.neg = v.negative;
i.year = v.year;
i.month = v.month;
i.day = v.day;
i.hour = v.hour;
i.minute = v.minute;
i.second = v.second;
i.second_part = v.microseconds;
}
};
template <>
class value_traits<bitfield, id_bit>
{
public:
typedef bitfield value_type;
typedef bitfield query_type;
typedef unsigned char* image_type;
static void
set_value (bitfield& v,
const unsigned char* s,
std::size_t,
bool is_null)
{
if (!is_null)
{
v.a = *s & 1;
v.b = (*s >> 1) & 1;
v.c = (*s >> 2) & 1;
v.d = (*s >> 3) & 1;
}
else
v.a = v.b = v.c = v.d = 0;
}
static void
set_image (unsigned char* s,
std::size_t,
std::size_t& n,
bool& is_null,
bitfield v)
{
is_null = false;
n = 1;
*s = v.a | (v.b << 1) | (v.c << 2) | (v.d << 3);
}
};
template <>
class value_traits<set, id_set>
{
public:
typedef set value_type;
typedef set query_type;
typedef details::buffer image_type;
static void
set_value (set& v,
const details::buffer& b,
std::size_t n,
bool is_null)
{
v.clear ();
if (!is_null)
{
const char* s (b.data ());
const char* e (s + n);
while (s < e)
{
const char* p (s);
while (p < e && *p != ',')
++p;
v.insert (std::string (s, p - s));
s = p;
if (p != e)
++s;
}
}
}
static void
set_image (details::buffer& buf,
std::size_t& n,
bool& is_null,
const set& v)
{
is_null = false;
n = 0;
for (set::const_iterator b (v.begin ()), i (b); i != v.end (); ++i)
{
std::size_t m (i->size () + (i != b ? 1 : 0));
if (n + m > buf.capacity ())
buf.capacity (n + m, n);
if (i != b)
buf.data ()[n++] = ',';
std::memcpy (buf.data () + n, i->c_str (), i->size ());
n += i->size ();
}
}
};
template <>
class value_traits<string_ptr, id_string>
{
public:
typedef string_ptr value_type;
typedef std::string query_type;
typedef details::buffer image_type;
static void
set_value (string_ptr& v,
const details::buffer& b,
std::size_t n,
bool is_null)
{
v.reset (is_null ? 0 : new std::string (b.data (), n));
}
static void
set_image (details::buffer& b,
std::size_t& n,
bool& is_null,
const string_ptr& v)
{
is_null = v.get () == 0;
if (!is_null)
{
n = v->size ();
if (n > b.capacity ())
b.capacity (n);
if (n != 0)
std::memcpy (b.data (), v->c_str (), n);
}
}
};
}
}
#endif // TRAITS_HXX
|
