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// file : odb/qt/date-time/pgsql/qdate-traits.hxx
// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_QT_DATE_TIME_PGSQL_QDATE_TRAITS_HXX
#define ODB_QT_DATE_TIME_PGSQL_QDATE_TRAITS_HXX
#include <odb/pre.hxx>
#include <QtCore/QDate>
#include <odb/pgsql/traits.hxx>
namespace odb
{
namespace pgsql
{
// Implementation of the mapping between QDate and PostgreSQL DATE. The
// DATE values are stored as days since the PostgreSQL epoch 2000-01-01.
//
template <>
struct default_value_traits<QDate, id_date>
{
typedef details::endian_traits endian_traits;
typedef QDate value_type;
typedef QDate query_type;
typedef int image_type;
static void
set_value (QDate& v, int i, bool is_null)
{
if (is_null)
// A null QDate value is equivalent to an invalid QDate value.
// Set v to an invalid date to represent null.
//
v.setDate (0, 0, 0);
else
{
const QDate pg_epoch (2000, 1, 1);
v = pg_epoch.addDays (endian_traits::ntoh (i));
}
}
static void
set_image (int& i, bool& is_null, const QDate& v)
{
if (v.isNull ())
is_null = true;
else
{
is_null = false;
const QDate pg_epoch (2000, 1, 1);
// In Qt5 daysTo() returns qint64.
//
i = endian_traits::hton<int> (pg_epoch.daysTo (v));
}
}
};
template <>
struct default_type_traits<QDate>
{
static const database_type_id db_type_id = id_date;
};
}
}
#include <odb/post.hxx>
#endif // ODB_QT_DATE_TIME_PGSQL_QDATE_TRAITS_HXX
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