On 8 Lis, 18:06, Victor <psyco...@gmail.com> wrote:
> Hi,
>
>
> user_item_rel_set is a m2m relationship between the User and Item
> class.  For every item, I look back at its m2m relationship model and
> retrieve payment_amount.  The only problem is, select_related()
> doesn't grab the user_item_rel_set.all() when I query for the items
> (where items=Item.objects.select_related().all() ).  Is there anything
> I can do to speed this up? It's *very* slow.

I'm not sure what you're trying to do, but what about:

items_user = Item.objects.filter(user=u)
items_buyer = Item.objects.filter(buyer=u)

- and then do something with those lists?

--
Tomasz Zieliński
http://pyconsultant.eu


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