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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.db import migrations, models
def turtle_forward(apps, schema_editor):
Turtle = apps.get_model("rpkidb", "Turtle")
Parent = apps.get_model("rpkidb", "Parent")
db_alias = schema_editor.connection.alias
for parent in Parent.objects.using(db_alias).all():
turtle = Turtle.objects.using(db_alias).create(
tenant = parent.old_tenant,
repository = parent.old_repository)
parent.turtle_ptr = turtle
parent.save()
def turtle_reverse(apps, schema_editor):
Turtle = apps.get_model("rpkidb", "Turtle")
Parent = apps.get_model("rpkidb", "Parent")
db_alias = schema_editor.connection.alias
for parent in Parent.objects.using(db_alias).all():
parent.old_tenant = parent.turtle_ptr.tenant
parent.old_repository = parent.turtle_ptr.repository
parent.turtle_ptr = None
parent.save()
Turtle.objects.using(db_alias).all().delete()
class Migration(migrations.Migration):
dependencies = [
('rpkidb', '0002_add_turtle'),
]
operations = [
migrations.RunPython(turtle_forward, turtle_reverse)
]
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