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// file : odb/boost/date-time/sqlite/posix-time-traits.hxx
// author : Constantin Michael <constantin@codesynthesis.com>
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_BOOST_DATE_TIME_SQLITE_POSIX_TIME_TRAITS_HXX
#define ODB_BOOST_DATE_TIME_SQLITE_POSIX_TIME_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/posix_time/posix_time_types.hpp>
#include <boost/date_time/posix_time/time_parsers.hpp> // time_from_string
#include <boost/date_time/posix_time/time_formatters.hpp> // to_simple_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 <>
class default_value_traits< ::boost::posix_time::ptime, id_text>
{
public:
typedef ::boost::posix_time::ptime ptime;
typedef ptime value_type;
typedef ptime query_type;
typedef details::buffer image_type;
static void
set_value (ptime& v,
const details::buffer& i,
std::size_t n,
bool is_null)
{
if (is_null)
v = ptime (::boost::date_time::not_a_date_time);
else
v = ::boost::posix_time::time_from_string (
std::string (i.data (), n));
}
static void
set_image (details::buffer& i,
std::size_t& n,
bool& is_null,
const ptime& v)
{
if (v.is_special ())
{
if (v.is_not_a_date_time ())
is_null = true;
else
throw odb::boost::date_time::special_value ();
}
else
{
is_null = false;
std::string s (::boost::posix_time::to_iso_extended_string (v));
// Replace ',' in iso string with '.'. SQLite requires the
// latter for date/time functions.
//
std::size_t p = s.rfind (',');
if (p != std::string::npos)
s[p] = '.';
// Remove 'T' separator as Boost is unable to parse correctly.
//
p = s.find ('T');
if (p != std::string::npos)
s[p] = ' ';
n = s.size ();
if (n > i.capacity ())
i.capacity (n);
std::memcpy (i.data (), s.data (), n);
}
}
};
// Implementation of the mapping between boost::posix_time::ptime and
// SQLite INTEGER. The integer value represents UNIX time.
//
template <>
class default_value_traits< ::boost::posix_time::ptime, id_integer>
{
public:
typedef ::boost::gregorian::date date;
typedef ::boost::posix_time::ptime ptime;
typedef ::boost::posix_time::time_duration time_duration;
typedef ptime value_type;
typedef ptime query_type;
typedef long long image_type;
static void
set_value (ptime& v, long long i, bool is_null)
{
if (is_null)
v = ptime (::boost::date_time::not_a_date_time);
else
v = ::boost::posix_time::from_time_t (static_cast<std::time_t> (i));
}
static void
set_image (long long& i, bool& is_null, const ptime& v)
{
if (v.is_special ())
{
if (v.is_not_a_date_time ())
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> (
(v - epoch).ticks () / time_duration::ticks_per_second ());
}
}
};
template <>
class default_value_traits< ::boost::posix_time::time_duration, id_text>
{
public:
typedef ::boost::posix_time::time_duration time_duration;
typedef time_duration value_type;
typedef time_duration query_type;
typedef details::buffer image_type;
static void
set_value (time_duration& v,
const details::buffer& i,
std::size_t n,
bool is_null)
{
if (is_null)
v = time_duration (::boost::date_time::not_a_date_time);
else
{
v = ::boost::posix_time::duration_from_string (
std::string (i.data (), n));
}
}
static void
set_image (details::buffer& i,
std::size_t& n,
bool& is_null,
const time_duration& v)
{
if (v.is_special ())
{
if (v.is_not_a_date_time ())
is_null = true;
else
throw odb::boost::date_time::special_value ();
}
else if (v.total_seconds () < 0)
throw odb::boost::date_time::value_out_of_range ();
else
{
is_null = false;
const std::string& s (::boost::posix_time::to_simple_string (v));
n = s.size ();
if (n > i.capacity ())
i.capacity (n);
std::memcpy (i.data (), s.data (), n);
}
}
};
template <>
class default_value_traits< ::boost::posix_time::time_duration, id_integer>
{
public:
typedef ::boost::posix_time::time_duration time_duration;
typedef time_duration value_type;
typedef time_duration query_type;
typedef details::buffer image_type;
static void
set_value (time_duration& v, long long i, bool is_null)
{
if (is_null)
v = time_duration (::boost::date_time::not_a_date_time);
else
v = time_duration (0, 0, static_cast<time_duration::sec_type> (i));
}
static void
set_image (long long& i, bool& is_null, const time_duration& v)
{
if (v.is_special ())
{
if (v.is_not_a_date_time ())
is_null = true;
else
throw odb::boost::date_time::special_value ();
}
else
{
is_null = false;
i = static_cast<long long> (v.total_seconds ());
}
}
};
template <>
class default_type_traits< ::boost::posix_time::ptime>
{
static const database_type_id db_type_id = id_text;
};
template <>
class default_type_traits< ::boost::posix_time::time_duration>
{
static const database_type_id db_type_id = id_text;
};
}
}
#endif // ODB_BOOST_DATE_TIME_SQLITE_POSIX_TIME_TRAITS_HXX
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