From 2b29df1262399eeb8414069f82f99aaf98c91121 Mon Sep 17 00:00:00 2001
From: Constantin Michael <constantin@codesynthesis.com>
Date: Wed, 23 Mar 2011 15:27:42 +0200
Subject: Add support for Qt QString

---
 odb/qt.options                   |  3 ++
 odb/qt/mysql/default-mapping.hxx | 15 +++++++
 odb/qt/mysql/qstring-traits.hxx  | 94 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 112 insertions(+)
 create mode 100644 odb/qt/mysql/default-mapping.hxx
 create mode 100644 odb/qt/mysql/qstring-traits.hxx

diff --git a/odb/qt.options b/odb/qt.options
index 2c52ff6..bafd94e 100644
--- a/odb/qt.options
+++ b/odb/qt.options
@@ -4,3 +4,6 @@
 # license   : GNU GPL v2; see accompanying LICENSE file
 
 --profile qt/version
+
+--odb-epilogue '#include <odb/qt/mysql/default-mapping.hxx>'
+--hxx-prologue '#include <odb/qt/mysql/qstring-traits.hxx>'
diff --git a/odb/qt/mysql/default-mapping.hxx b/odb/qt/mysql/default-mapping.hxx
new file mode 100644
index 0000000..6d3be3b
--- /dev/null
+++ b/odb/qt/mysql/default-mapping.hxx
@@ -0,0 +1,15 @@
+// file      : qt/mysql/default-mapping.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_MYSQL_DEFAULT_MAPPING_HXX
+#define ODB_QT_MYSQL_DEFAULT_MAPPING_HXX
+
+#include <QString>
+
+// Map QString to MySQL TEXT by default.
+//
+#pragma db value(QString) type("TEXT")
+
+#endif // ODB_QT_MYSQL_DEFAULT_MAPPING_HXX
diff --git a/odb/qt/mysql/qstring-traits.hxx b/odb/qt/mysql/qstring-traits.hxx
new file mode 100644
index 0000000..5b0191a
--- /dev/null
+++ b/odb/qt/mysql/qstring-traits.hxx
@@ -0,0 +1,94 @@
+// file      : odb/qt/mysql/qstring-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_MYSQL_QSTRING_TRAITS_HXX
+#define ODB_QT_MYSQL_QSTRING_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+#include <cstddef> // std::size_t
+
+#include <odb/mysql/traits.hxx>
+#include <odb/details/buffer.hxx>
+
+#include <QString>
+
+namespace odb
+{
+  namespace mysql
+  {
+    class LIBODB_MYSQL_EXPORT qstring_value_traits
+    {
+    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::fromLocal8Bit (b.data (), n);
+        else
+          v.clear ();
+      }
+
+      static void
+      set_image (details::buffer& b,
+                 std::size_t& n,
+                 bool& is_null,
+                 const QString& v)
+      {
+        is_null = false;
+
+        const std::string& s (v.toStdString ());
+        n = s.size ();
+
+        if (n > b.capacity ())
+          b.capacity (n);
+
+        if (n != 0)
+          memcpy (b.data (), s.data (), n);
+      }
+    };
+
+    template <>
+    struct LIBODB_MYSQL_EXPORT default_value_traits<
+      QString, details::buffer, id_string>: qstring_value_traits
+    {
+    };
+
+    template <>
+    struct LIBODB_MYSQL_EXPORT default_value_traits<
+      QString, details::buffer, id_decimal>: qstring_value_traits
+    {
+    };
+
+    template <>
+    struct LIBODB_MYSQL_EXPORT default_value_traits<
+      QString, details::buffer, id_enum>: qstring_value_traits
+    {
+    };
+
+    template <>
+    struct LIBODB_MYSQL_EXPORT default_value_traits<
+      QString, details::buffer, id_set>: qstring_value_traits
+    {
+    };
+
+    template <>
+    struct default_type_traits<QString>
+    {
+      static const database_type_id db_type_id = id_string;
+    };
+  }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_QT_MYSQL_QSTRING_TRAITS_HXX
-- 
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