Is there Django List View model sort?

Question

I'm using ListView in my Class Based Views and I was wondering if there was a way to display the model object set on the template by sorting it. This is what I have so far:

My views:

class Reviews(ListView):     model = ProductReview     paginate_by = 50     template_name = 'review_system/reviews.html' 

The model ProductReview has a date_created field. I'd like to sort the date in descending order. How can I achieve this?

Answer 1

Set the ordering attribute for the view.

class Reviews(ListView):     model = ProductReview     paginate_by = 50     template_name = 'review_system/reviews.html'      ordering = ['-date_created'] 

If you need to change the ordering dynamically, you can use get_ordering instead.

class Reviews(ListView):     ...     def get_ordering(self):         ordering = self.request.GET.get('ordering', '-date_created')         # validate ordering here         return ordering 

If you are always sorting a fixed date field, you may be interested in the ArchiveIndexView.

from django.views.generic.dates import ArchiveIndexView  class Reviews(ArchiveIndexView):     model = ProductReview     paginate_by = 50     template_name = 'review_system/reviews.html'     date_field = "date_created" 

Note that ArchiveIndexView won't show objects with a date in the future unless you set allow_future to True.