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authorConstantin Michael <constantin@codesynthesis.com>2011-03-31 15:36:02 +0200
committerConstantin Michael <constantin@codesynthesis.com>2011-04-22 14:38:40 +0200
commit621bc135b9825fc9f18ada204f67d3800c5f6fda (patch)
treefa94cea520c51c44f5fc25b85d7932b7f738a4aa /odb/qt/date-time/sqlite/qtime-traits.hxx
parentf43df635ef3efbb9ac242024c95c5949fb21a919 (diff)
Complete qt/basic and qt/date-time implementations
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+// file : odb/qt/date-time/sqlite/qtime-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_QT_DATE_TIME_SQLITE_QTIME_TRAITS_HXX
+#define ODB_QT_DATE_TIME_SQLITE_QTIME_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+#include <string>
+#include <cstddef> // std::size_t
+#include <cstring> // std::memcpy
+
+#include <QTime>
+
+#include <odb/details/buffer.hxx>
+#include <odb/sqlite/traits.hxx>
+
+namespace odb
+{
+ namespace sqlite
+ {
+ template <>
+ class default_value_traits<QTime, details::buffer, id_text>
+ {
+ public:
+ typedef QTime value_type;
+ typedef QTime query_type;
+ typedef details::buffer image_type;
+
+ static void
+ set_value (QTime& v,
+ const details::buffer& i,
+ std::size_t n,
+ bool is_null)
+ {
+ if (is_null)
+ // A null QTime value is equivalent to an invalid QTime value.
+ // Set v to an invalid time to represent null (hour value of
+ // a valid time must be in the range 0-23).
+ //
+ v.setHMS (24, 0, 0);
+ else
+ v = QTime::fromString (
+ QString::fromAscii (i.data (), static_cast<int> (n)),
+ "HH:mm:ss.zzz");
+ }
+
+ static void
+ set_image (details::buffer& i,
+ std::size_t& n,
+ bool& is_null,
+ const QTime& v)
+ {
+ if (v.isNull ())
+ is_null = true;
+ else
+ {
+ is_null = false;
+
+ std::string s (v.toString ("HH:mm:ss.zzz").toStdString ());
+
+ n = s.size ();
+ if (n > i.capacity ())
+ i.capacity (n);
+
+ std::memcpy (i.data (), s.data (), n);
+ }
+ }
+ };
+
+ // Implementation of mapping between QTime and SQLite INTEGER. The
+ // integer value represents seconds since midnight.
+ //
+ template <>
+ class default_value_traits<QTime, long long, id_integer>
+ {
+ public:
+ typedef QTime value_type;
+ typedef QTime query_type;
+ typedef long long image_type;
+
+ static void
+ set_value (QTime& v, long long i, bool is_null)
+ {
+ if (is_null)
+ // A null QTime value is equivalent to an invalid QTime value.
+ // Set v to an invalid time to represent null (hour value of
+ // a valid time must be in the range 0-23).
+ //
+ v.setHMS (24, 0, 0);
+ else
+ v = QTime (0, 0, 0).addSecs (static_cast<int> (i));
+ }
+
+ static void
+ set_image (long long& i, bool& is_null, const QTime& v)
+ {
+ if (v.isNull ())
+ is_null = true;
+ else
+ {
+ is_null = false;
+ i = static_cast<long long> (QTime (0, 0, 0).secsTo (v));
+ }
+ }
+ };
+
+ template <>
+ class default_type_traits<QTime>
+ {
+ static const database_type_id db_type_id = id_text;
+ };
+ }
+}
+
+#endif // ODB_QT_DATE_TIME_SQLITE_QTIME_TRAITS_HXX