Update migration and arrange for activation changes

netbox/core/migrations/0016_configrevision_active.py

@@ -3,6 +3,27 @@
 from django.db import migrations, models
 
 
+def get_active(apps, schema_editor):
+    from django.core.cache import cache
+    ConfigRevision = apps.get_model('core', 'ConfigRevision')
+    version = None
+    revision = None
+
+    try:
+        version = cache.get('config_version')
+    except Exception:
+        pass
+
+    if version:
+        revision = ConfigRevision.objects.filter(pk=version).first()
+    else:
+        revision = ConfigRevision.objects.order_by('-created').first()
+
+    if revision:
+        revision.active = True
+        revision.save()
+
+
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -15,6 +36,7 @@ class Migration(migrations.Migration):
             name='active',
             field=models.BooleanField(default=False),
         ),
+        migrations.RunPython(code=get_active, reverse_code=migrations.RunPython.noop),
         migrations.AddConstraint(
             model_name='configrevision',
             constraint=models.UniqueConstraint(

netbox/core/models/config.py

@@ -78,4 +78,4 @@ class ConfigRevision(models.Model):
 
     @property
     def is_active(self):
-        return cache.get('config_version') == self.pk
+        return self.active