On Thu, Feb 4, 2010 at 17:25, Andrew <ajpere...@googlemail.com> wrote:

> I have a table of "tasks" which contain references to multiple
> children and parents (tasks can have multiple children and multiple
> parents in this example). These are defined as ManyToMany and so I get
> an extra table containing the links.
>
> If I select all tasks, how can I then see a particular tasks children
> without sqlalchemy making another query every time.
> I have a case where I want to get a list of say 500 tasks and their
> children but end up with 500 extra queries.

Search for "eagerloading"/lazy=False in the documentation. You can
configure it either on the relation, or on the query.

HTH,
-- 
Gaƫtan de Menten
http://openhex.org

-- 
You received this message because you are subscribed to the Google Groups 
"sqlalchemy" group.
To post to this group, send email to sqlalch...@googlegroups.com.
To unsubscribe from this group, send email to 
sqlalchemy+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/sqlalchemy?hl=en.

Reply via email to