models.py 文件源码

def _get_site_by_request(self, request):
        host = request.get_host()
        try:
            # First attempt to look up the site by host with or without port.
            if host not in SITE_CACHE:
                SITE_CACHE[host] = self.get(domain__iexact=host)
            return SITE_CACHE[host]
        except Site.DoesNotExist:
            # Fallback to looking up site after stripping port from the host.
            domain, port = split_domain_port(host)
            if not port:
                raise
            if domain not in SITE_CACHE:
                SITE_CACHE[domain] = self.get(domain__iexact=domain)
            return SITE_CACHE[domain]