app/django/contrib/sites/managers.py
author Sverre Rabbelier <srabbelier@gmail.com>
Sun, 07 Dec 2008 19:02:41 +0000
changeset 710 edb5dbb1dea7
parent 54 03e267d67478
permissions -rw-r--r--
Add explicit access_types from the url This does two things, it reduces the amount of repeated data (e.g., the checkAccess used to repeat the access_type that was already specified in the url). At the same time, it allows for example the 'create' page to push its access_type to 'edit'. Patch by: Sverre Rabbelier

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})