In django, how do I sort a model on a field and then get the last item?

Question

Specifically, I have a model that has a field like this

pub_date = models.DateField(\"date published\")

I want to be able to easily grab the ob

Answer 1

This has already been answered, but for more reference, this is what Django Book has to say about Slicing Data on QuerySets:

Note that negative slicing is not supported:

>>> Publisher.objects.order_by('name')[-1]
Traceback (most recent call last):
  ...
AssertionError: Negative indexing is not supported.

This is easy to get around, though. Just change the order_by() statement, like this:

>>> Publisher.objects.order_by('-name')[0]

Refer the link for more such details. Hope that helps!