diff options
Diffstat (limited to 'libodb-qt/odb/qt/basic/sqlite/qstring-traits.hxx')
-rw-r--r-- | libodb-qt/odb/qt/basic/sqlite/qstring-traits.hxx | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libodb-qt/odb/qt/basic/sqlite/qstring-traits.hxx b/libodb-qt/odb/qt/basic/sqlite/qstring-traits.hxx new file mode 100644 index 0000000..30a2136 --- /dev/null +++ b/libodb-qt/odb/qt/basic/sqlite/qstring-traits.hxx @@ -0,0 +1,83 @@ +// file : odb/qt/basic/sqlite/qstring-traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_QT_BASIC_SQLITE_QSTRING_TRAITS_HXX +#define ODB_QT_BASIC_SQLITE_QSTRING_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <cstring> // std::memcpy +#include <cstddef> // std::size_t + +#include <QtCore/QString> + +#include <odb/details/buffer.hxx> +#include <odb/sqlite/traits.hxx> + +namespace odb +{ + namespace sqlite + { + template <> + struct image_traits<QString, id_text> + { + typedef details::buffer image_type; + + // Use UTF-16 binding for QString. + // + static const bind::buffer_type bind_value = bind::text16; + }; + + template <> + struct default_value_traits <QString, id_text> + { + public: + typedef QString value_type; + typedef QString query_type; + typedef details::buffer image_type; + + static void + set_value (QString& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (is_null) + v = QString (); + else + v.setUtf16 (reinterpret_cast<const ushort*> (b.data ()), + static_cast<int> (n / 2)); // In characters. + } + + static void + set_image (details::buffer& b, + std::size_t& n, + bool& is_null, + const QString& v) + { + if (v.isNull ()) + is_null = true; + else + { + is_null = false; + n = static_cast<std::size_t> (v.size ()) * 2; // In bytes. + + if (n > b.capacity ()) + b.capacity (n); + + std::memcpy (b.data (), v.utf16 (), n); + } + } + }; + + template <> + struct default_type_traits<QString> + { + static const database_type_id db_type_id = id_text; + }; + } +} + +#include <odb/post.hxx> + +#endif // ODB_QT_BASIC_SQLITE_QSTRING_TRAITS_HXX |