filters.py 文件源码

def filter_queryset(self, request, queryset, view):
        """
        Anonymous user has no object permissions, return queryset as it is.
        """
        user = request.user
        project_id = view.kwargs.get(view.lookup_field)

        if user.is_anonymous():
            return queryset.filter(Q(shared=True))

        if project_id:
            try:
                int(project_id)
            except ValueError:
                raise ParseError(
                    u"Invalid value for project_id '%s' must be a positive "
                    "integer." % project_id)

            # check if project is public and return it
            try:
                project = queryset.get(id=project_id)
            except ObjectDoesNotExist:
                raise Http404

            if project.shared:
                return queryset.filter(Q(id=project_id))

        return super(AnonUserProjectFilter, self)\
            .filter_queryset(request, queryset, view)