[odb-users] Best Practice deleting persistent objects

[Boris Kolpackov]

Hi Steven,

Steven Côté <steven.cote at gmail.com> writes:

> So in my case it would be something like:
> 
> class group;
> 
> #pragma db object
> class user
> {
>    ...
> 
>    std::vector<group*> belongs;
> };
> 
> #pragma db object
> class group
> {
>      ...
> 
>      #pragma db inverse(belongs)
>      std::vector<user*> member;
> };
> 
> Is it possible to describe a relationship like that in the pragma language?

You just did. This is a many-to-many relationship with one side
inverse. There is a section in manual on this kind of relationships.


> Otherwise I guess I'm waiting for version 2.4.0.

You only need to wait for 2.4.0 if you want to use the on_delete
clause.

Boris