Get list of occurrences + count in a model Django?

Question

Imagine I have the following model:

class Person(models.Model):
    ...other stuff...
    optional_first_name= models.CharField(max_length=50, blank=True)


        

Answer 1

After some digging, finally found out:

Person.objects.values('optional_first_name').annotate(c=Count('optional_first_name')).order_by('-c')