# -*- 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", "0051_switchs_machine")] def transfer_port(apps, schema_editor): db_alias = schema_editor.connection.alias port = apps.get_model("topologie", "Port") switch = apps.get_model("topologie", "NewSw") port_list = port.objects.using(db_alias).all() for p in port_list: p.new_sw = switch.objects.filter(machine_ptr=p.switch.machine).first() p.save() def untransfer_port(apps, schema_editor): return operations = [ migrations.AlterUniqueTogether(name="port", unique_together=set([])), migrations.RunPython(transfer_port, untransfer_port), migrations.RemoveField(model_name="port", name="switch"), migrations.RenameField("Port", "new_sw", "switch"), ]