Using django-mongodb, how to sort descending a capped collection?

Question

Have this model, a class representing a capped collection at mongodb:

class Event(models.Model):
   objects = MongoDBManager()
   create_at = models.DateTimeField(auto_now_add=True)
   obj = BlobField()
   class MongoMeta:
      capped = True
      collection_size = 1000*1024*1024

What can I use to get the documents in the reverse order they are inserted?

Answer 1

This is a temporal solution at pymongo level, not django-mongodb level:

from django.db import connections
import pymongo

conn = connections['default']
events_col = conn.get_collection('base_event')
events = events_col.find().sort('create_at', pymongo.DESCENDING)