1 from django.db import models

     2 from django.contrib.contenttypes.models import ContentType

     3 from django.utils.encoding import force_unicode

     4 

     5 class CommentManager(models.Manager):

     6 

     7     def in_moderation(self):

     8         """

     9         QuerySet for all comments currently in the moderation queue.

    10         """

    11         return self.get_query_set().filter(is_public=False, is_removed=False)

    12 

    13     def for_model(self, model):

    14         """

    15         QuerySet for all comments for a particular model (either an instance or

    16         a class).

    17         """

    18         ct = ContentType.objects.get_for_model(model)

    19         qs = self.get_query_set().filter(content_type=ct)

    20         if isinstance(model, models.Model):

    21             qs = qs.filter(object_pk=force_unicode(model._get_pk_val()))

    22         return qs