re2o/topologie/migrations/0070_auto_20190218_1743.py

# -*- coding: utf-8 -*-
# Generated by Django 1.10.7 on 2019-02-18 16:43
from __future__ import unicode_literals

from django.db import migrations, models
import django.db.models.deletion
import re2o.mixins


class Migration(migrations.Migration):

    dependencies = [("topologie", "0069_auto_20190108_1439")]

    def create_dormitory(apps, schema_editor):
        db_alias = schema_editor.connection.alias
        dormitory = apps.get_model("topologie", "Dormitory")
        building = apps.get_model("topologie", "Building")
        dorm = dormitory.objects.using(db_alias).create(name="Residence")
        building.objects.using(db_alias).update(dormitory=dorm)

    def delete_dormitory(apps, schema_editor):
        pass

    operations = [
        migrations.CreateModel(
            name="Dormitory",
            fields=[
                (
                    "id",
                    models.AutoField(
                        auto_created=True,
                        primary_key=True,
                        serialize=False,
                        verbose_name="ID",
                    ),
                ),
                ("name", models.CharField(max_length=255)),
            ],
            options={
                "verbose_name": "dormitory",
                "permissions": (("view_dormitory", "Can view a dormitory object"),),
                "verbose_name_plural": "dormitories",
            },
            bases=(re2o.mixins.AclMixin, re2o.mixins.RevMixin, models.Model),
        ),
        migrations.AddField(
            model_name="building",
            name="dormitory",
            field=models.ForeignKey(
                blank=True,
                null=True,
                on_delete=django.db.models.deletion.PROTECT,
                to="topologie.Dormitory",
            ),
            preserve_default=False,
        ),
        migrations.RunPython(create_dormitory, delete_dormitory),
    ]