On Sun, Jul 19, 2009 at 10:48 AM, aXqd<[email protected]> wrote: > > Hi, all: > > Recently, I linked two models ( FOO & BAR ) with a foreign key. > Then I retrieved the whole records back with the following codes: > > 1 for item in FOO.objects.all(): > 2 print item.bar.id > > In my opinion, the whole thing should be lazy enough. > So if Line 1 got all the BAR id back, *WHY* did Line 2 still trigger a > SQL query to retrieve the whole BAR object while all I want here was > just that ID, which, I think, was already known by django at this > time? > Am I missing something here? > > Thanks. > > -- > Regards. > -Tian > > > >
Try doing item.bar_id. Doing item.bar causes Django to load up the bar object, but if all you want is the id you can use "bar_id". Alex -- "I disapprove of what you say, but I will defend to the death your right to say it." -- Voltaire "The people's good is the highest law." -- Cicero "Code can always be simpler than you think, but never as simple as you want" -- Me --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
