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// file : common/query/traits-pgsql.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 TRAITS_PGSQL_HXX
#define TRAITS_PGSQL_HXX
#include <string>
#include <memory> // std::auto_ptr
#include <cstring> // std::memcpy
#include <odb/pgsql/traits.hxx>
namespace odb
{
namespace pgsql
{
template <>
class value_traits<std::auto_ptr<std::string>, id_string>
{
public:
typedef std::auto_ptr<std::string> value_type;
typedef std::string query_type;
typedef details::buffer image_type;
static void
set_value (std::auto_ptr<std::string>& v,
const details::buffer& b,
std::size_t n,
bool is_null)
{
v.reset (is_null ? 0 : new std::string (b.data (), n));
}
static void
set_image (details::buffer& b,
std::size_t& n,
bool& is_null,
const std::auto_ptr<std::string>& v)
{
is_null = v.get () == 0;
if (!is_null)
{
n = v->size ();
if (n > b.capacity ())
b.capacity (n);
if (n != 0)
std::memcpy (b.data (), v->c_str (), n);
}
}
};
}
}
#endif // TRAITS_PGSQL_HXX
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