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-rw-r--r--libodb-qt/odb/qt/date-time/sqlite/qdate-traits.hxx141
1 files changed, 141 insertions, 0 deletions
diff --git a/libodb-qt/odb/qt/date-time/sqlite/qdate-traits.hxx b/libodb-qt/odb/qt/date-time/sqlite/qdate-traits.hxx
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+++ b/libodb-qt/odb/qt/date-time/sqlite/qdate-traits.hxx
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+// file : odb/qt/date-time/sqlite/qdate-traits.hxx
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_QT_DATE_TIME_SQLITE_QDATE_TRAITS_HXX
+#define ODB_QT_DATE_TIME_SQLITE_QDATE_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+#include <string>
+#include <cstddef> // std::size_t
+#include <cstring> // std::memcpy
+
+#include <QtCore/QtGlobal> // QT_VERSION
+
+#include <QtCore/QDate>
+#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<QDate, id_text>
+ {
+ typedef QDate value_type;
+ typedef QDate query_type;
+ typedef details::buffer image_type;
+
+ static void
+ set_value (QDate& v,
+ const details::buffer& i,
+ std::size_t n,
+ 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
+ v = QDate::fromString (
+ QString::fromLatin1 (i.data (), static_cast<int> (n)),
+ "yyyy-MM-dd");
+ }
+
+ static void
+ set_image (details::buffer& i,
+ std::size_t& n,
+ bool& is_null,
+ const QDate& 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-dd").toLatin1 ().constData ());
+
+ n = s.size ();
+ if (n > i.capacity ())
+ i.capacity (n);
+
+ std::memcpy (i.data (), s.data (), n);
+ }
+ }
+ };
+
+ // Implementation of the mapping between QDate and SQLite INTEGER. The
+ // integer value represents UNIX time.
+ //
+ template <>
+ struct default_value_traits<QDate, id_integer>
+ {
+ typedef QDate value_type;
+ typedef QDate query_type;
+ typedef long long image_type;
+
+ static void
+ set_value (QDate& v, long long 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
+ {
+ QDateTime dt;
+ dt.setTimeSpec (Qt::UTC);
+
+ // *Time_t() functions are deprecated in favor of *SecsSinceEpoch().
+ //
+#if QT_VERSION < 0x060000
+ dt.setTime_t (static_cast<uint> (i));
+#else
+ dt.setSecsSinceEpoch (static_cast<qint64> (i));
+#endif
+ v = dt.date ();
+ }
+ }
+
+ static void
+ set_image (long long& i, bool& is_null, const QDate& v)
+ {
+ if (v.isNull ())
+ is_null = true;
+ else if (v < QDate (1970, 1, 1))
+ throw odb::qt::date_time::value_out_of_range ();
+ else
+ {
+ is_null = false;
+ const QDateTime dt (v, QTime (0, 0, 0), Qt::UTC);
+
+#if QT_VERSION < 0x060000
+ i = static_cast<long long> (dt.toTime_t ());
+#else
+ i = static_cast<long long> (dt.toSecsSinceEpoch ());
+#endif
+ }
+ }
+ };
+
+ template <>
+ struct default_type_traits<QDate>
+ {
+ static const database_type_id db_type_id = id_text;
+ };
+ }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_QT_DATE_TIME_SQLITE_QDATE_TRAITS_HXX