How can I get previous and next objects from a filtered, ordered queryset?

Question

I have a page based on a model object, and I want to have links to the previous and next pages. I don\'t like my current solution because it requires evaluating the entire query

Answer 1

Sounds like something the Paginator set to a threshold of 1 would do well at.

# Full query set...
pages = Page.objects.filter(column=somevalue)
p = Paginator(pages, 1)

# Where next page would be something like...
if p.has_next():
     p.page(p.number+1)

Documentation here and here.