Re: [boost] Interest from BoostCon

From: Arkadiy Vertleyb (vertleyb_at_[hidden])
Date: 2007-05-30 17:00:42

"Rene Rivera" <grafikrobot_at_[hidden]> wrote

> Here's part of a short
> example of what we are considering:
>
> template <typename C>
> struct Person
>     : rsi::db::schema::table_def< C, Person<C> >
> {
>     column id;
>     column first_name;
>     column last_name;
>     column address;
>     column mail_address;
>     column phone;
>
>     template <typename T>
>     typename T::result_type operator()(T const & transform)
>     {
>         return transform(
>             table("Person")
>                 <<= id("id")
>                     % integer[autoincrement]
>                     & not_null & primary_key
>
>                 <<= first_name("first_name")
>                     % character(50)[varying]
>                     & not_null
>
>                 <<= last_name("last_name")
>                     % character(50)[varying]
>                     & not_null
>
>                 <<= address("address_id")
>                     >> Address<C>().id
>
>                 <<= mail_address("mail_address_id")
>                     >> Address<C>().id
>
>                 <<= phone("phone")
>                     % character(20)[varying]
>                     & not_null
>             );
>     }
> };

Do I understand correctly that this code maps a database record into a C++ 
structure?  Is it possible to enforce correct types here, instead of using 
universal "column" type?

Regards,
Arkadiy