Repository navigation
Expand file tree
/
Copy pathdatetime.h
More file actions
462 lines (375 loc) · 13.2 KB
/
Copy pathdatetime.h
File metadata and controls
462 lines (375 loc) · 13.2 KB
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
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
/// \file datetime.h
/// \brief Declares classes to add SQL-compatible date and time
/// types to C++'s type system.
/***********************************************************************
Copyright (c) 1998 by Kevin Atkinson, (c) 1999-2001 by MySQL AB, and
(c) 2004-2008 by Educational Technology Resources, Inc. Others may
also hold copyrights on code in this file. See the CREDITS.txt file
in the top directory of the distribution for details.
This file is part of MySQL++.
MySQL++ is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
MySQL++ is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with MySQL++; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
USA
***********************************************************************/
#if !defined(MYSQLPP_DATETIME_H)
#define MYSQLPP_DATETIME_H
#include "common.h"
#include "comparable.h"
#include <string>
#include <iostream>
namespace mysqlpp {
/// \brief C++ form of SQL's DATETIME type.
///
/// This object exists primarily for conversion purposes. You can
/// initialize it in several different ways, and then convert the object
/// to SQL string form, extract the individual y/m/d h:m:s values,
/// convert it to C's time_t, etc.
class MYSQLPP_EXPORT DateTime : public Comparable<DateTime>
{
public:
/// \brief Default constructor
DateTime() :
Comparable<DateTime>(),
year_(0),
month_(0),
day_(0),
hour_(0),
minute_(0),
second_(0),
now_(true)
{
}
/// \brief Initialize object from discrete y/m/d h:m:s values.
///
/// \param y year, 1000-9999
/// \param mon month, 1-12
/// \param d day of month, 1-31
/// \param h hour, 0-23
/// \param min minute, 0-59
/// \param s second, 0-59
DateTime(unsigned short y, unsigned char mon, unsigned char d,
unsigned char h, unsigned char min, unsigned char s) :
Comparable<DateTime>(),
year_(y),
month_(mon),
day_(d),
hour_(h),
minute_(min),
second_(s),
now_(false)
{
}
/// \brief Initialize object as a copy of another Date
DateTime(const DateTime& other) :
Comparable<DateTime>(),
year_(other.year_),
month_(other.month_),
day_(other.day_),
hour_(other.hour_),
minute_(other.minute_),
second_(other.second_),
now_(other.now_)
{
}
/// \brief Initialize object from a C string containing a SQL
/// date-and-time string
///
/// String must be in the HH:MM:SS format. It doesn't have to be
/// zero-padded.
explicit DateTime(const char* str) { convert(str); }
/// \brief Initialize object from a C++ string containing a
/// SQL date-and-time string
///
/// This works with any stringish class that declares a c_str()
/// member function: std::string, mysqlpp::String...
///
/// \sa DateTime(const char*)
template <class Str>
explicit DateTime(const Str& str)
{
convert(str.c_str());
}
/// \brief Initialize object from a \c time_t
explicit DateTime(time_t t);
/// \brief Compare this object to another.
///
/// Returns < 0 if this object is before the other, 0 of they are
/// equal, and > 0 if this object is after the other.
int compare(const DateTime& other) const;
/// \brief Parse a SQL date and time string into this object.
const char* convert(const char*);
/// \brief Get the date/time value's day part, 1-31
unsigned char day() const { return day_; }
/// \brief Change the date/time value's day part, 1-31
void day(unsigned char d) { day_ = d; now_ = false; }
/// \brief Get the date/time value's hour part, 0-23
unsigned char hour() const { return hour_; }
/// \brief Change the date/time value's hour part, 0-23
void hour(unsigned char h) { hour_ = h; now_ = false; }
/// \brief Returns true if object will evaluate to SQL "NOW()" on
/// conversion to string.
bool is_now() const { return now_; }
/// \brief Get the date/time value's minute part, 0-59
unsigned char minute() const { return minute_; }
/// \brief Change the date/time value's minute part, 0-59
void minute(unsigned char m) { minute_ = m; now_ = false; }
/// \brief Get the date/time value's month part, 1-12
unsigned char month() const { return month_; }
/// \brief Change the date/time value's month part, 1-12
void month(unsigned char m) { month_ = m; now_ = false; }
/// \brief Factory to create an object instance that will convert
/// to SQL "NOW()" on insertion into a query
///
/// This is just syntactic sugar around the default ctor
static DateTime now() { return DateTime(); }
/// \brief Convert to std::string
operator std::string() const;
/// \brief Convert to time_t
operator time_t() const;
/// \brief Get the date/time value's second part, 0-59
unsigned char second() const { return second_; }
/// \brief Change the date/time value's second part, 0-59
void second(unsigned char s) { second_ = s; now_ = false; }
/// \brief Return our value in std::string form
std::string str() const { return *this; }
/// \brief Get the date/time value's year part
///
/// There's no trickery here like in some date/time implementations
/// where you have to add 1900 or something like that. It simply
/// returns the year in natural form, in the range 1000-9999.
unsigned short year() const { return year_; }
/// \brief Change the date/time value's year part
///
/// Pass the year value normally; we don't optimize the value by
/// subtracting 1900 like some other date/time implementations.
void year(unsigned short y) { year_ = y; now_ = false; }
private:
unsigned short year_; ///< the year, as a simple integer
unsigned char month_; ///< the month, 1-12
unsigned char day_; ///< the day, 1-31
unsigned char hour_; ///< the hour, 0-23 (not 0-255 as in Time!)
unsigned char minute_; ///< the minute, 0-59
unsigned char second_; ///< the second, 0-59
bool now_; ///< true if object not initialized with explicit value
};
/// \brief Returns a DateTime object that, when inserted into query
/// will yield a SQL "NOW()" function call.
inline DateTime NOW() { return DateTime(); }
/// \brief Inserts a DateTime object into a C++ stream in a
/// SQL-compatible format.
///
/// The date and time are inserted into the stream, in that order,
/// with a space between them.
///
/// \param os stream to insert date and time into
/// \param dt date/time object to insert into stream
MYSQLPP_EXPORT std::ostream& operator <<(std::ostream& os,
const DateTime& dt);
/// \brief C++ form of SQL's DATE type.
///
/// Objects of this class can be inserted into streams, and
/// initialized from SQL DATE strings.
class MYSQLPP_EXPORT Date : public Comparable<Date>
{
public:
/// \brief Default constructor
Date() : year_(0), month_(0), day_(0) { }
/// \brief Initialize object
///
/// \param y year, 1000-9999
/// \param m month, 1-12
/// \param d day of month, 1-31
Date(unsigned short y, unsigned char m, unsigned char d) :
Comparable<Date>(),
year_(y),
month_(m),
day_(d)
{
}
/// \brief Initialize object as a copy of another Date
Date(const Date& other) :
Comparable<Date>(),
year_(other.year_),
month_(other.month_),
day_(other.day_)
{
}
/// \brief Initialize object from date part of date/time object
Date(const DateTime& other) :
Comparable<Date>(),
year_(other.year()),
month_(other.month()),
day_(other.day())
{
}
/// \brief Initialize object from a C string containing a date
///
/// String must be in the YYYY-MM-DD format. It doesn't have to be
/// zero-padded.
explicit Date(const char* str) { convert(str); }
/// \brief Initialize object from a C++ string containing a date
///
/// This works with any stringish class that declares a c_str()
/// member function: std::string, mysqlpp::String...
///
/// \sa Date(const char*)
template <class Str>
explicit Date(const Str& str) { convert(str.c_str()); }
/// \brief Initialize object from a \c time_t
///
/// Naturally, we throw away the "time" part of the \c time_t. If
/// you need to keep it, you want to use DateTime instead.
explicit Date(time_t t);
/// \brief Compare this date to another.
///
/// Returns < 0 if this date is before the other, 0 of they are
/// equal, and > 0 if this date is after the other.
int compare(const Date& other) const;
/// \brief Parse a SQL date string into this object.
const char* convert(const char*);
/// \brief Get the date's day part, 1-31
unsigned char day() const { return day_; }
/// \brief Change the date's day part, 1-31
void day(unsigned char d) { day_ = d; }
/// \brief Get the date's month part, 1-12
unsigned char month() const { return month_; }
/// \brief Change the date's month part, 1-12
void month(unsigned char m) { month_ = m; }
/// \brief Convert to std::string
operator std::string() const;
/// \brief Convert to time_t
///
/// The "time" part of the \c time_t is "now"
operator time_t() const;
/// \brief Return our value in std::string form
std::string str() const { return *this; }
/// \brief Get the date's year part
///
/// There's no trickery here like in some date implementations
/// where you have to add 1900 or something like that.
unsigned short year() const { return year_; }
/// \brief Change the date's year part
///
/// Pass the year value normally; we don't optimize the value by
/// subtracting 1900 like some other date implementations.
void year(unsigned short y) { year_ = y; }
private:
unsigned short year_; ///< the year, as a simple integer, 1000-9999
unsigned char month_; ///< the month, 1-12
unsigned char day_; ///< the day, 1-31
};
/// \brief Inserts a Date object into a C++ stream
///
/// The format is YYYY-MM-DD, zero-padded.
///
/// \param os stream to insert date into
/// \param d date to insert into stream
MYSQLPP_EXPORT std::ostream& operator <<(std::ostream& os,
const Date& d);
/// \brief C++ form of SQL's TIME type.
///
/// Objects of this class can be inserted into streams, and
/// initialized from SQL TIME strings.
class MYSQLPP_EXPORT Time : public Comparable<Time>
{
public:
/// \brief Default constructor
Time() : hour_(0), minute_(0), second_(0) { }
/// \brief Initialize object
/// \param h hour, 0-255 (yes, > 1 day is legal in SQL!)
/// \param m minute, 0-59
/// \param s second, 0-59
Time(unsigned char h, unsigned char m, unsigned char s) :
hour_(h),
minute_(m),
second_(s)
{
}
/// \brief Initialize object as a copy of another Time
Time(const Time& other) :
Comparable<Time>(),
hour_(other.hour_),
minute_(other.minute_),
second_(other.second_)
{
}
/// \brief Initialize object from time part of date/time object
Time(const DateTime& other) :
Comparable<Time>(),
hour_(other.hour()),
minute_(other.minute()),
second_(other.second())
{
}
/// \brief Initialize object from a C string containing a SQL
/// time string
///
/// String must be in the HH:MM:SS format. It doesn't have to be
/// zero-padded.
explicit Time(const char* str) { convert(str); }
/// \brief Initialize object from a C++ string containing a
/// SQL time string
///
/// This works with any stringish class that declares a c_str()
/// member function: std::string, mysqlpp::String...
///
/// \sa Time(const char*)
template <class Str>
explicit Time(const Str& str) { convert(str.c_str()); }
/// \brief Initialize object from a \c time_t
///
/// Naturally, we throw away the "date" part of the \c time_t. If
/// you need to keep it, you want to use DateTime instead.
explicit Time(time_t t);
/// \brief Compare this time to another.
///
/// Returns < 0 if this time is before the other, 0 of they are
/// equal, and > 0 if this time is after the other.
int compare(const Time& other) const;
/// \brief Parse a SQL time string into this object.
const char* convert(const char*);
/// \brief Get the time's hour part, 0-255
unsigned char hour() const { return hour_; }
/// \brief Change the time's hour part, 0-255
void hour(unsigned char h) { hour_ = h; }
/// \brief Get the time's minute part, 0-59
unsigned char minute() const { return minute_; }
/// \brief Change the time's minute part, 0-59
void minute(unsigned char m) { minute_ = m; }
/// Convert to std::string
operator std::string() const;
/// \brief Convert to time_t
///
/// The "date" part of the \c time_t is "today"
operator time_t() const;
/// \brief Get the time's second part, 0-59
unsigned char second() const { return second_; }
/// \brief Change the time's second part, 0-59
void second(unsigned char s) { second_ = s; }
/// Return our value in std::string form
std::string str() const { return *this; }
private:
unsigned char hour_; ///< the hour, 0-255 (yes, > 1 day is legal SQL!)
unsigned char minute_; ///< the minute, 0-59
unsigned char second_; ///< the second, 0-59
};
/// \brief Inserts a Time object into a C++ stream in a SQL-compatible
/// format.
///
/// The format is HH:MM:SS, zero-padded.
///
/// \param os stream to insert time into
/// \param t time to insert into stream
MYSQLPP_EXPORT std::ostream& operator <<(std::ostream& os,
const Time& t);
} // end namespace mysqlpp
#endif // !defined(MYSQLPP_DATETIME_H)