Initial work on virtual chassis support

netbox/dcim/migrations/0052_virtual_chassis.py

@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.6 on 2017-11-17 20:39
+from __future__ import unicode_literals
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dcim', '0051_rackreservation_tenant'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='VCMembership',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('master_enabled', models.BooleanField(default=True)),
+                ('position', models.PositiveSmallIntegerField(validators=[django.core.validators.MaxValueValidator(255)])),
+                ('priority', models.PositiveSmallIntegerField(blank=True, null=True, validators=[django.core.validators.MaxValueValidator(255)])),
+                ('device', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, related_name='vc_membership', to='dcim.Device')),
+            ],
+            options={
+                'verbose_name': 'VC membership',
+                'ordering': ['virtual_chassis', 'position'],
+            },
+        ),
+        migrations.CreateModel(
+            name='VirtualChassis',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('domain', models.CharField(blank=True, max_length=30)),
+                ('master', models.OneToOneField(on_delete=django.db.models.deletion.PROTECT, related_name='vc_master_for', to='dcim.Device')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='vcmembership',
+            name='virtual_chassis',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='memberships', to='dcim.VirtualChassis'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='vcmembership',
+            unique_together=set([('virtual_chassis', 'position')]),
+        ),
+    ]