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re2o/topologie/migrations/0052_transferports.py
2018-03-26 17:39:26 +02:00

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Python

# -*- 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')
]