From 0acb35c3ff7ce7e98fd6f3a92552558ec39f7c3d Mon Sep 17 00:00:00 2001 From: Boris Kolpackov Date: Thu, 3 Nov 2011 08:16:50 +0200 Subject: Add support for mapping std::vector to BLOB types --- odb/pgsql/traits.cxx | 22 ++++++++++++++++++++++ odb/pgsql/traits.hxx | 37 ++++++++++++++++++++++++++++++++++++- 2 files changed, 58 insertions(+), 1 deletion(-) diff --git a/odb/pgsql/traits.cxx b/odb/pgsql/traits.cxx index a2c2f2f..9e31c9f 100644 --- a/odb/pgsql/traits.cxx +++ b/odb/pgsql/traits.cxx @@ -76,5 +76,27 @@ namespace odb if (n != 0) memcpy (b.data (), &v.front (), n); } + + // + // default_value_traits, id_bytea> + // + + void default_value_traits, id_bytea>:: + set_image (details::buffer& b, + size_t& n, + bool& is_null, + const value_type& v) + { + is_null = false; + n = v.size (); + + if (n > b.capacity ()) + b.capacity (n); + + // std::vector::data() may not be available in older compilers. + // + if (n != 0) + memcpy (b.data (), &v.front (), n); + } } } diff --git a/odb/pgsql/traits.hxx b/odb/pgsql/traits.hxx index b4b6a11..85a6af4 100644 --- a/odb/pgsql/traits.hxx +++ b/odb/pgsql/traits.hxx @@ -466,7 +466,8 @@ namespace odb // std::vector (buffer) specialization. // template <> - struct LIBODB_PGSQL_EXPORT default_value_traits, id_bytea> + struct LIBODB_PGSQL_EXPORT default_value_traits< + std::vector, id_bytea> { public: typedef std::vector value_type; @@ -492,6 +493,40 @@ namespace odb const value_type&); }; + // std::vector (buffer) specialization. + // + template <> + struct LIBODB_PGSQL_EXPORT default_value_traits< + std::vector, id_bytea> + { + public: + typedef std::vector value_type; + typedef std::vector query_type; + typedef details::buffer image_type; + + static void + set_value (value_type& v, + const details::buffer& b, + std::size_t n, + bool is_null) + { + if (!is_null) + { + const unsigned char* d ( + reinterpret_cast (b.data ())); + v.assign (d, d + n); + } + else + v.clear (); + } + + static void + set_image (details::buffer&, + std::size_t& n, + bool& is_null, + const value_type&); + }; + // // type_traits // -- cgit v1.1