def make_relation_back(user, link, relation_back): if link is not None and relation_back != '': new_link = Link(user=user) new_link.node1 = link.node2 new_link.node2 = link.node1 new_link.provider1 = link.provider2 new_link.provider2 = link.provider1 new_link.relation = relation_back new_link.save()