We have room for some improvement here. It should be possible to add
subqueries to the current query. This would be especially useful for
adding aggregates.
For aggregates we need this feature because the current API doesn't
work for anything but simple cases. For example
Book.objects.annotate(aut
pt., 22.01.2016 o 17:44 użytkownik charettes napisał:
> Hi Patryk,
>
>
> > Currently we have Prefetch objects that kind of solve this problem for
> M2M
> > relations but perhaps it would be nice to also be able to use QuerySets
> in
> > select_related() or even in filter(). I don't think Prefetch
Hi Patryk,
> Currently we have Prefetch objects that kind of solve this problem for M2M
> relations but perhaps it would be nice to also be able to use QuerySets in
> select_related() or even in filter(). I don't think Prefetch objects are
best
> suited for that and I personally find having to in
Hi,
Currently the way QuerySets work makes it hard to reuse code. Consider an
example where I have template tags to render an author and a book (that in
turn displays author). I don't want my template code to execute any
additional queries per row displayed so I am forced to prefetch everything
up
