Add SQL Server support

1 files changed, 86 insertions, 0 deletions

diff --git a/mapping/traits-mssql.hxx b/mapping/traits-mssql.hxx
new file mode 100644
index 0000000..264a657
--- /dev/null
+++ b/mapping/traits-mssql.hxx
@@ -0,0 +1,86 @@
+// file      : mapping/traits-mssql.hxx
+// author    : Constantin Michael <constantin@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#ifndef TRAITS_MSSQL_HXX
+#define TRAITS_MSSQL_HXX
+
+//
+// SQL Server implementation.
+//
+
+#include <cstddef> // std::size_t
+#include <cstring> // std::strncmp, std::memcpy
+#include <cassert>
+
+#include <odb/mssql/traits.hxx>
+
+#include "person.hxx" // date
+
+namespace odb
+{
+  namespace mssql
+  {
+    template <>
+    class value_traits<bool, id_string>
+    {
+    public:
+      typedef bool value_type;
+      typedef bool query_type;
+      typedef char* image_type;
+
+      static void
+      set_value (bool& v,
+                 const char* b,
+                 std::size_t n,
+                 bool is_null)
+      {
+        v = (!is_null && n == 4 && std::strncmp ("true", b, n) == 0);
+      }
+
+      static void
+      set_image (char* b,
+                 std::size_t c,
+                 std::size_t& n,
+                 bool& is_null,
+                 bool v)
+      {
+        is_null = false;
+        n = v ? 4 : 5;
+
+        assert (n <= c);
+
+        std::memcpy (b, (v ? "true" : "false"), n);
+      }
+    };
+
+    template <>
+    class value_traits< ::date, id_date>
+    {
+    public:
+      typedef ::date value_type;
+      typedef ::date query_type;
+      typedef mssql::date image_type;
+
+      static void
+      set_value (value_type& v, const image_type& i, bool is_null)
+      {
+        if (!is_null)
+          v = value_type (static_cast<unsigned int> (i.year), i.month, i.day);
+        else
+          v = value_type (0, 0, 0);
+      }
+
+      static void
+      set_image (image_type& i, bool& is_null, const value_type& v)
+      {
+        is_null = false;
+        i.year = static_cast<SQLSMALLINT> (v.year ());
+        i.month = static_cast<SQLUSMALLINT> (v.month ());
+        i.day = static_cast<SQLUSMALLINT> (v.day ());
+      }
+    };
+  }
+}
+
+#endif // TRAITS_MSSQL_HXX