'Update a filter
Update a project\'s filter.
{method} {path}'

def put(self, request, project, filter_id):

    try:
        filter = filters.get(filter_id)(project)
    except filters.FilterNotRegistered:
        raise ResourceDoesNotExist
    serializer = filter.serializer_cls(data=request.DATA, partial=True)
    if (not serializer.is_valid()):
        return Response(serializer.errors, status=400)
    filter.enable(serializer.object)
    return Response(status=201)
