[Dbix-class] Subquery question

[luke saunders]

On 5/16/06, Dan Horne <dan.horne at redbone.co.nz > wrote:
>
> Hi All
>
> I'm trying to figure out how to perform subqueries with DBIx::Class. For
> example, I want to find all the roles that user 2 hasn't been assigned.
> The standard SQL is
>
> select role_id, display_name
> from   app_role a
> where  not exists
>     (select 1
>      from   user_role u
>      where  u.user_id = 2
>      and    u.role_id = a.role_id);
>
> What would the DBIx::Class equivalent be?
>
> Regards
>
> Dan Horne


Hi Dan,

Sadly subselects like this aren't possible with DBIC at the moment.

It's definitely on the TODO list, I guess Matt will be able to tell you
roughly when it'll be ready. Until then you'll have to find a way of doing
it that doesn't require the subselect.

Cheers,
Luke.
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