aboutsummaryrefslogtreecommitdiff
path: root/odb/boost/date-time/sqlite/gregorian-traits.hxx
blob: f3b5db3110ff4866387070a7a038738f65b544aa (plain)
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
// file      : odb/boost/date-time/sqlite/gregorian-traits.hxx
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license   : GNU GPL v2; see accompanying LICENSE file

#ifndef ODB_BOOST_DATE_TIME_SQLITE_GREGORIAN_TRAITS_HXX
#define ODB_BOOST_DATE_TIME_SQLITE_GREGORIAN_TRAITS_HXX

#include <odb/pre.hxx>

#include <string>
#include <cstddef>  // std::size_t
#include <cstring>  // std::memcpy
#include <ctime>    // std::time_t

#include <boost/date_time/gregorian/gregorian_types.hpp>    // date
#include <boost/date_time/posix_time/posix_time_types.hpp>  // time_duration
#include <boost/date_time/gregorian/parsers.hpp>      // from_simple_string
#include <boost/date_time/gregorian/formatters.hpp>   // to_iso_extended_string
#include <boost/date_time/posix_time/conversion.hpp>  // from_time_t

#include <odb/core.hxx>
#include <odb/details/buffer.hxx>
#include <odb/sqlite/traits.hxx>

#include <odb/boost/date-time/exceptions.hxx>

namespace odb
{
  namespace sqlite
  {
    template <>
    struct default_value_traits< ::boost::gregorian::date, id_text>
    {
      typedef ::boost::gregorian::date date;
      typedef date value_type;
      typedef date query_type;
      typedef details::buffer image_type;

      static void
      set_value (date& v,
                 const details::buffer& i,
                 std::size_t n,
                 bool is_null)
      {
        if (is_null)
          v = date (::boost::date_time::not_a_date_time);
        else
          v = ::boost::gregorian::from_simple_string (
            std::string (i.data (), n));
      }

      static void
      set_image (details::buffer& i,
                 std::size_t& n,
                 bool& is_null,
                 const date& v)
      {
        if (v.is_special ())
        {
          if (v.is_not_a_date ())
            is_null = true;
          else
            throw odb::boost::date_time::special_value ();
        }
        else
        {
          is_null = false;

          const std::string& s (
            ::boost::gregorian::to_iso_extended_string (v));

          n = s.size ();

          if (n > i.capacity ())
            i.capacity (n);

          std::memcpy (i.data (), s.data (), n);
        }
      }
    };

    template <>
    struct default_value_traits< ::boost::gregorian::date, id_integer>
    {
      typedef ::boost::gregorian::date date;
      typedef ::boost::posix_time::time_duration time_duration;
      typedef ::boost::posix_time::ptime ptime;
      typedef date value_type;
      typedef date query_type;
      typedef long long image_type;

      static void
      set_value (date& v, long long i, bool is_null)
      {
        if (is_null)
          v = date (::boost::date_time::not_a_date_time);
        else
          v = ::boost::posix_time::from_time_t (
            static_cast<std::time_t> (i)).date ();
      }

      static void
      set_image (long long& i, bool& is_null, const date& v)
      {
        if (v.is_special ())
        {
          if (v.is_not_a_date ())
            is_null = true;
          else
            throw odb::boost::date_time::special_value ();
        }
        else
        {
          is_null = false;

          ptime epoch (date (1970, 1, 1), time_duration (0, 0, 0));
          i = static_cast<long long> (
            (ptime (v, time_duration (0, 0, 0)) - epoch).ticks () /
            time_duration::ticks_per_second ());
        }
      }
    };

    template <>
    struct default_type_traits< ::boost::gregorian::date>
    {
      static const database_type_id db_type_id = id_text;
    };
  }
}

#include <odb/post.hxx>

#endif // ODB_BOOST_DATE_TIME_SQLITE_GREGORIAN_TRAITS_HXX