diff options
Diffstat (limited to 'libodb-qt/odb/qt/containers/qvector-traits.hxx')
-rw-r--r-- | libodb-qt/odb/qt/containers/qvector-traits.hxx | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/libodb-qt/odb/qt/containers/qvector-traits.hxx b/libodb-qt/odb/qt/containers/qvector-traits.hxx new file mode 100644 index 0000000..516475d --- /dev/null +++ b/libodb-qt/odb/qt/containers/qvector-traits.hxx @@ -0,0 +1,82 @@ +// file : odb/qt/containers/qvector-traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_QT_CONTAINER_QVECTOR_TRAITS_HXX +#define ODB_QT_CONTAINER_QVECTOR_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <QtCore/QtGlobal> // QT_VERSION + +// In Qt 6 QVector is an alias for QList. +// +#if QT_VERSION >= 0x060000 +#include <odb/qt/containers/qlist-traits.hxx> +#else + +#include <QtCore/QVector> + +#include <odb/container-traits.hxx> + +namespace odb +{ + template <typename T> + class access::container_traits<QVector<T> > + { + public: + static const container_kind kind = ck_ordered; + static const bool smart = false; + + typedef QVector<T> container_type; + + typedef T value_type; + typedef typename container_type::size_type index_type; + + typedef ordered_functions<index_type, value_type> functions; + + public: + static void + persist (const container_type& c, const functions& f) + { + // Index based access is just as fast as iterator based access for + // QVector. + // + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert (i, c[i]); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + index_type dummy; + c.append (value_type ()); + more = f.select (dummy, c.back ()); + } + } + + static void + update (const container_type& c, const functions& f) + { + f.delete_ (); + + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert (i, c[i]); + } + + static void + erase (const functions& f) + { + f.delete_ (); + } + }; +} + +#endif + +#include <odb/post.hxx> + +#endif // ODB_QT_CONTAINER_QVECTOR_TRAITS_HXX |