Excellent thanks, I had looked at this before but not got it work. The
following now works:
query.options(eagerload_all("parents"),eagerload_all("children")).all()
Cheers,
Andrew
On 5 February 2010 08:38, Gaetan de Menten <gdemen...@gmail.com> wrote:
> 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,
> --
> Gaëtan de Menten
> http://openhex.org
>
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