В этой миграции привязка группы абонентов к тарифам

abonapp/migrations/0013_abongroup_tariffs.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9 on 2017-03-21 11:30
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tariff_app', '0002_tariff_descr'),
+        ('abonapp', '0012_auto_20170227_1718'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='abongroup',
+            name='tariffs',
+            field=models.ManyToManyField(blank=True, related_name='tariff_groups', to='tariff_app.Tariff'),
+        ),
+    ]