[odb-users] querying with relationships

[Boris Kolpackov]

Hi Simón Emmanuel,

Simón Emmanuel Gutiérrez Brida <simon.gutierrez.brida at gmail.com> writes:

> if I declare the user field of Pattern like this
> 
> #pragma db not_null
> std::tr1::weak_ptr<User> user;
> 
> Then I have an already persistent when I do
> 
> persist(user); 
> persist(pattern);
> 
> if I declare the user field of Pattern like this
> 
> #pragma db not_null
> std::tr1::shared_ptr<User> user;
> 
> I have no persist problems

Hm, I am not sure what's going on here. If anything, I would expect
it to behave the other way around. Try to figure out which one of
these persist() calls is throwing and then see if the object with
such id actually already exists in the database.


> but now when I make a query to retrieve all users and store them
> in a vector<User> the push_back hangs in a odb load method

That would most likely be due to the lack of session.

Boris