djadhere/services/migrations/0009_auto_20170211_1523.py

# -*- coding: utf-8 -*-
# Generated by Django 1.10.5 on 2017-02-11 14:23
from __future__ import unicode_literals

from django.db import migrations


def remove_unaffected_services(apps, schema_editor):
    db_alias = schema_editor.connection.alias
    Service = apps.get_model('services', 'Service')
    Service.objects.using(db_alias).filter(adherent__isnull=True).delete()


class Migration(migrations.Migration):

    dependencies = [
        ('services', '0008_auto_20170211_0130'),
    ]

    operations = [
        migrations.RunPython(remove_unaffected_services),
    ]