Reverse order when using _set.all

Question

I have two relationships:

class Contact(models.Model):
    first_name  =models.CharField(max_length=30)

class Activity(models.Model):
    action      =models.CharField(max_length=200)
    whom        =models.ForeignKey("Contact", null=True, blank=True)

With

 contacts=Contact.objects.get(slug=contactslug)

I can call the specific Contant from my url request

And additionally

c = contacts.activity_set.all

lets me call all the activities.

How can I call the activities but in reverse order since .order_by() or reverse() doesn't seem to work.

Answer 1

This will probably work

reversed(contacts.activity_set.all())

But, you should do this:

class Activity(models.Model):
    action      =models.CharField(max_length=200)
    whom        =models.ForeignKey("Contact", null=True, blank=True)

    class Meta:
        ordering = ['action']

or ['-action']