Comments on: Django annoyances: no reverse select_related http://blog.affien.com/archives/2009/05/30/django-annoyances-no-reverse-select_related/ A few thoughts Tue, 02 Mar 2010 14:24:18 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Bas Westerbaan http://blog.affien.com/archives/2009/05/30/django-annoyances-no-reverse-select_related/comment-page-1/#comment-178399 Bas Westerbaan Sun, 31 May 2009 12:07:29 +0000 http://blog.affien.com/?p=380#comment-178399 Yeah, that is what I was thinking about. However, it's still a waste to have to fetch all comments, when possibly only displaying 30 of them. (You changed the direction of the reference in your code). Yeah, that is what I was thinking about. However, it’s still a waste to have to fetch all comments, when possibly only displaying 30 of them. (You changed the direction of the reference in your code).

]]> By: Andrew http://blog.affien.com/archives/2009/05/30/django-annoyances-no-reverse-select_related/comment-page-1/#comment-178398 Andrew Sun, 31 May 2009 09:31:16 +0000 http://blog.affien.com/?p=380#comment-178398 You can work around it using select_related to retrieve comments to the pages, and then combine them in the python code using groupby. from django.utils.itercompat import groupby comments = Comment.objects.filter(**kwargs).select_related('page') pages_with_comments = dict(groupby(comments, lambda t: t.page)) You can work around it using select_related to retrieve comments to the pages, and then combine them in the python code using groupby.

from django.utils.itercompat import groupby

comments = Comment.objects.filter(**kwargs).select_related(‘page’)
pages_with_comments = dict(groupby(comments, lambda t: t.page))

]]> By: Mike Scott http://blog.affien.com/archives/2009/05/30/django-annoyances-no-reverse-select_related/comment-page-1/#comment-178397 Mike Scott Sat, 30 May 2009 18:08:37 +0000 http://blog.affien.com/?p=380#comment-178397 Its something thats been bugging me for quite some time, and just lately its become quite a nusance. If django gracefully degraded and gave you appropriate manual controls for this exact sort of thing it wouldn't be so bad. But I can't seem to work that bit out quite yet. Its something thats been bugging me for quite some time, and just lately its become quite a nusance. If django gracefully degraded and gave you appropriate manual controls for this exact sort of thing it wouldn’t be so bad. But I can’t seem to work that bit out quite yet.

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