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// file : odb/qt/date-time/sqlite/qdatetime-traits.hxx
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_QT_DATE_TIME_SQLITE_QDATETIME_TRAITS_HXX
#define ODB_QT_DATE_TIME_SQLITE_QDATETIME_TRAITS_HXX
#include <odb/pre.hxx>
#include <string>
#include <cstddef> // std::size_t
#include <cstring> // std::memcpy
#include <QtCore/QtGlobal> // QT_VERSION
#include <QtCore/QDateTime>
#include <odb/details/buffer.hxx>
#include <odb/sqlite/traits.hxx>
#include <odb/qt/date-time/exceptions.hxx>
namespace odb
{
namespace sqlite
{
template <>
struct default_value_traits<QDateTime, id_text>
{
typedef QDateTime value_type;
typedef QDateTime query_type;
typedef details::buffer image_type;
static void
set_value (QDateTime& v,
const details::buffer& i,
std::size_t n,
bool is_null)
{
if (is_null)
// Default constructor creates a null QDateTime.
//
v = QDateTime ();
else
v = QDateTime::fromString (
QString::fromLatin1 (i.data (), static_cast<int> (n)),
"yyyy-MM-ddTHH:mm:ss.zzz");
}
static void
set_image (details::buffer& i,
std::size_t& n,
bool& is_null,
const QDateTime& v)
{
if (v.isNull ())
is_null = true;
else
{
is_null = false;
// Cannot use toStdString() here since Qt could have been
// configured without the STL compatibility support.
//
std::string s (
v.toString ("yyyy-MM-ddTHH:mm:ss.zzz").toLatin1 ().constData ());
n = s.size ();
if (n > i.capacity ())
i.capacity (n);
std::memcpy (i.data (), s.data (), n);
}
}
};
// Implementation of mapping between QDateTime and SQLite INTEGER.
// The integer value represents UNIX time.
//
template <>
struct default_value_traits<QDateTime, id_integer>
{
typedef QDateTime value_type;
typedef QDateTime query_type;
typedef long long image_type;
static void
set_value (QDateTime& v, long long i, bool is_null)
{
if (is_null)
// Default constructor creates a null QDateTime.
//
v = QDateTime ();
else
{
v.setTimeSpec (Qt::UTC);
// *Time_t() functions are deprecated in favor of *SecsSinceEpoch().
//
#if QT_VERSION < 0x060000
v.setTime_t (static_cast<uint> (i));
#else
v.setSecsSinceEpoch (static_cast<qint64> (i));
#endif
}
}
static void
set_image (long long& i, bool& is_null, const QDateTime& v)
{
if (v.isNull ())
is_null = true;
else if (v < QDateTime (QDate (1970, 1, 1),
QTime (0, 0, 0),
Qt::UTC))
throw odb::qt::date_time::value_out_of_range ();
else
{
is_null = false;
#if QT_VERSION < 0x060000
i = static_cast<long long> (v.toTime_t ());
#else
i = static_cast<long long> (v.toSecsSinceEpoch ());
#endif
}
}
};
template <>
struct default_type_traits<QDateTime>
{
static const database_type_id db_type_id = id_text;
};
}
}
#include <odb/post.hxx>
#endif // ODB_QT_DATE_TIME_SQLITE_QDATETIME_TRAITS_HXX
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