# -*- coding: utf-8 -*- # Generated by Django 1.10.7 on 2017-12-31 19:53 from __future__ import unicode_literals from django.db import migrations class Migration(migrations.Migration): dependencies = [("topologie", "0039_port_new_switch")] def transfer_port(apps, schema_editor): db_alias = schema_editor.connection.alias port = apps.get_model("topologie", "Port") switch = apps.get_model("topologie", "NewSwitch") port_list = port.objects.using(db_alias).all() for p in port_list: p.new_switch = switch.objects.filter( interface_ptr=p.switch.switch_interface ).first() p.save() def untransfer_port(apps, schema_editor): return operations = [migrations.RunPython(transfer_port, untransfer_port)]