Hi,
Malcolm Tredinnick wrote:
> In the object_list view, you are given an "object_list" parameter, which
> is a list of all the objects for that page. To display them, you will be
> doing something like
>
> {% for folder in object_list %}
>
> to iterate over that list. Inside that loop, you should then be able to
> do
>
> {% for media in folder.media_set.all %}
>
> and so on.
>
Thanks for the reply.
The thing is I wanted to show the media_set for a given folder (pass
something like <object_id> with the detail view). I finished writing a
wrapper for this which looks like this:
def custom_listmedia(request, id):
from django.views.generic.list_detail import object_list
obj = get_object_or_404(Folder, folders_id=id)
return object_list(request,obj.media_set.all(),paginate_by=15,page=page)
This works quite well.
As I see it there is no way to limit the object_list view by parameters,
rigth? It is just a flat list of objects in a table.
> QuerySets are lazy. Since pagination only wants, say, 10 items, it will
> end up running "queryset[:10]" and only when the results are needed will
> the query be turned into SQL and run. In this case, that will convert it
> into a query involving a LIMIT clause, so you don't end up selecting
> every single result; just the ones you need.
>
> Am I making any of this clearer? Or just confusing things further? It's
> always a bit difficult to know how much detail to put into these
> postings, so let me know if I've put too little in this case.
>
No, that sounds perfectly reasonable. It was just confusing that you
have to give obj.objects.all() for viewing a single entry. I just didn't
realize it did something like obj.objects.all().get(pk=..) behind the scene.
Thanks again for the clarification.
Regards,
Sean
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