1 files changed, 70 insertions, 0 deletions
diff --git a/libbrep/package-traits.cxx b/libbrep/package-traits.cxx
new file mode 100644
index 0000000..a03cbac
--- /dev/null
+++ b/libbrep/package-traits.cxx
@@ -0,0 +1,70 @@
+// file      : libbrep/package-traits.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <libbrep/package-traits.hxx>
+
+#include <string>
+#include <ostream>
+#include <sstream>
+#include <cstring> // memcpy
+
+#include <odb/pgsql/traits.hxx>
+
+using namespace std;
+
+namespace odb
+{
+  namespace pgsql
+  {
+    static inline void
+    to_pg_string (ostream& os, const string& s)
+    {
+      os << '"';
+
+      for (auto c: s)
+      {
+        if (c == '\\' || c == '"')
+          os << '\\';
+
+        os << c;
+      }
+
+      os << '"';
+    }
+
+    // Convert C++ weighted_text struct to PostgreSQL weighted_text
+    // composite type.
+    //
+    void value_traits<brep::weighted_text, id_string>::
+    set_image (details::buffer& b,
+               size_t& n,
+               bool& is_null,
+               const value_type& v)
+    {
+      is_null = v.a.empty () && v.b.empty () && v.c.empty () && v.d.empty ();
+
+      if (!is_null)
+      {
+        ostringstream o;
+        o << "(";
+        to_pg_string (o, v.a);
+        o << ",";
+        to_pg_string (o, v.b);
+        o << ",";
+        to_pg_string (o, v.c);
+        o << ",";
+        to_pg_string (o, v.d);
+        o << ")";
+
+        const string& s (o.str ());
+        n = s.size ();
+
+        if (n > b.capacity ())
+          b.capacity (n);
+
+        memcpy (b.data (), s.c_str (), n);
+      }
+    }
+  }
+}