app/django/contrib/sites/managers.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Tue, 27 Jan 2009 21:56:32 +0000
changeset 1015 b9d51be5104a
parent 54 03e267d67478
permissions -rw-r--r--
Add profiling support to Melange. By assigning profile_main_as_logs or profile_main_as_html to main variable you can turn on profiling. profile_main_as_logs will log profile data to App Engine console logs, profile_main_as_html will show profile data as html at the bottom of the page. If you want to profile app on deployed app just set the profiling function and deploy it. Patch by: Pawel Solyga Reviewed by: to-be-reviewed

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})