On Thu, Sep 29, 2011 at 4:40 PM, Florian Apolloner <f.apollo...@gmail.com>wrote:
> > > On Tuesday, September 27, 2011 11:37:06 PM UTC+2, Peter wrote: >> >> I'd just like to chime in to say this should definitely be part of >> core - it's a common requirement, and whilst it could be a third party >> app, it certainly feels much more at home in core. >> > > +1, especially if it works with pagination (which is often not the case for > 3rd party apps which fall back to raw sql or so…) > > >> On Sep 27, 1:13 pm, Luke Plant <l.pla...@cantab.net> wrote: >> > For me, QuerySet is at a level of abstraction where I don't think it >> > guarantees a single query. We have quite a bit of precedent here I >> think: >> >> I also agree on this - many ORMs give the option to fetch objects >> using a separate select (I'm thinking for example hibernates >> "FetchMode.SELECT"). I think if you explicitly use this then you >> probably need to understand what it does like anything else. >> > > Jupp, btw don't we even already have some cases where eg assertNumQueries > fails since mysql executes more queries? (I remember something like that on > #django-dev -- or I am completely dumb :)) > > Cheers, > Florian > > -- > You received this message because you are subscribed to the Google Groups > "Django developers" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/django-developers/-/cQKYc4OPQaAJ. > > To post to this group, send email to django-developers@googlegroups.com. > To unsubscribe from this group, send email to > django-developers+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/django-developers?hl=en. > When I did this externally a number of years ago, I basically subclassed ManyToManyField, overrode a bunch of code (quite a bit of copy paste as I recall), and it's related manager and made it return a custom queryset, which used a cache off of the object, which was populated by another custom queryset which overrode iterator() in order to do the bulk loading. Alex -- "I disapprove of what you say, but I will defend to the death your right to say it." -- Evelyn Beatrice Hall (summarizing Voltaire) "The people's good is the highest law." -- Cicero -- You received this message because you are subscribed to the Google Groups "Django developers" group. To post to this group, send email to django-developers@googlegroups.com. To unsubscribe from this group, send email to django-developers+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-developers?hl=en.
