--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/contrib/sites/managers.py Fri Jul 18 18:22:23 2008 +0000
@@ -0,0 +1,20 @@
+from django.conf import settings
+from django.db import models
+from django.db.models.fields import FieldDoesNotExist
+
+class CurrentSiteManager(models.Manager):
+ "Use this to limit objects to those associated with the current site."
+ def __init__(self, field_name='site'):
+ super(CurrentSiteManager, self).__init__()
+ self.__field_name = field_name
+ self.__is_validated = False
+
+ def get_query_set(self):
+ if not self.__is_validated:
+ try:
+ self.model._meta.get_field(self.__field_name)
+ except FieldDoesNotExist:
+ raise ValueError, "%s couldn't find a field named %s in %s." % \
+ (self.__class__.__name__, self.__field_name, self.model._meta.object_name)
+ self.__is_validated = True
+ return super(CurrentSiteManager, self).get_query_set().filter(**{self.__field_name + '__id__exact': settings.SITE_ID})