from django.core.exceptions import Http404, ObjectDoesNotExist from django.core.template import Context, loader from django.models.core import sites, contenttypes from django.utils import httpwrappers def shortcut(request, content_type_id, object_id): "Redirect to an object's page based on a content-type ID and an object ID." # Look up the object, making sure it's got a get_absolute_url() function. try: content_type = contenttypes.get_object(pk=content_type_id) obj = content_type.get_object_for_this_type(pk=object_id) except ObjectDoesNotExist: raise Http404, "Content type %s object %s doesn't exist" % (content_type_id, object_id) try: absurl = obj.get_absolute_url() except AttributeError: raise Http404, "%s objects don't have get_absolute_url() methods" % content_type.name # Try to figure out the object's domain, so we can do a cross-site redirect # if necessary. # If the object actually defines a domain, we're done. if absurl.startswith('http://'): return httpwrappers.HttpResponseRedirect(absurl) object_domain = None # Next, look for an many-to-many relationship to sites if hasattr(obj, 'get_site_list'): site_list = obj.get_site_list() if site_list: object_domain = site_list[0].domain # Next, look for a many-to-one relationship to sites elif hasattr(obj, 'get_site'): try: object_domain = obj.get_site().domain except sites.SiteDoesNotExist: pass # Then, fall back to the current site (if possible) else: try: object_domain = sites.get_current().domain except sites.SiteDoesNotExist: # Finally, give up and use a URL without the domain name return httpwrappers.HttpResponseRedirect(obj.get_absolute_url()) return httpwrappers.HttpResponseRedirect('http://%s%s' % (object_domain, obj.get_absolute_url())) def page_not_found(request, template_name='404'): """ Default 404 handler, which looks for the requested URL in the redirects table, redirects if found, and displays 404 page if not redirected. Templates: `404` Context: None """ t = loader.get_template(template_name) return httpwrappers.HttpResponseNotFound(t.render(Context())) def server_error(request, template_name='500'): """ 500 error handler. Templates: `500` Context: None """ t = loader.get_template(template_name) return httpwrappers.HttpResponseServerError(t.render(Context()))