1 from django.db import models

     2 from django.dispatch import dispatcher

     3 from django.contrib.contenttypes.models import ContentType

     4 from django.utils.encoding import force_unicode

     5 

     6 class CommentManager(models.Manager):

     7 

     8     def in_moderation(self):

     9         """

    10         QuerySet for all comments currently in the moderation queue.

    11         """

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

    13 

    14     def for_model(self, model):

    15         """

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

    17         a class).

    18         """

    19         ct = ContentType.objects.get_for_model(model)

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

    21         if isinstance(model, models.Model):

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

    23         return qs