From 42857b15b270974c1f4046797c0bf6047b489204 Mon Sep 17 00:00:00 2001
From: Daniel Sheppard <dans@dansheps.com>
Date: Tue, 9 Sep 2025 11:49:13 -0500
Subject: [PATCH] Add active field on ConfigRevision model.

---
 .../migrations/0016_configrevision_active.py  | 24 +++++++++++++++++++
 netbox/core/models/config.py                  | 15 ++++++++++++
 netbox/netbox/config/__init__.py              |  3 ++-
 3 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 netbox/core/migrations/0016_configrevision_active.py

diff --git a/netbox/core/migrations/0016_configrevision_active.py b/netbox/core/migrations/0016_configrevision_active.py
new file mode 100644
index 00000000000..12907289824
--- /dev/null
+++ b/netbox/core/migrations/0016_configrevision_active.py
@@ -0,0 +1,24 @@
+# Generated by Django 5.2.5 on 2025-09-09 16:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0015_remove_redundant_indexes'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='configrevision',
+            name='active',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddConstraint(
+            model_name='configrevision',
+            constraint=models.UniqueConstraint(
+                condition=models.Q(('actvive', True)), fields=('active',), name='unique_active_config_revision'
+            ),
+        ),
+    ]
diff --git a/netbox/core/models/config.py b/netbox/core/models/config.py
index b2381ae401d..6a0f922aa56 100644
--- a/netbox/core/models/config.py
+++ b/netbox/core/models/config.py
@@ -14,6 +14,9 @@ class ConfigRevision(models.Model):
     """
     An atomic revision of NetBox's configuration.
     """
+    active = models.BooleanField(
+        default=False
+    )
     created = models.DateTimeField(
         verbose_name=_('created'),
         auto_now_add=True
@@ -35,6 +38,13 @@ class ConfigRevision(models.Model):
         ordering = ['-created']
         verbose_name = _('config revision')
         verbose_name_plural = _('config revisions')
+        constraints = [
+            models.UniqueConstraint(
+                fields=('active',),
+                condition=models.Q(actvive=True),
+                name='unique_active_config_revision',
+            )
+        ]
 
     def __str__(self):
         if not self.pk:
@@ -59,6 +69,11 @@ class ConfigRevision(models.Model):
         """
         cache.set('config', self.data, None)
         cache.set('config_version', self.pk, None)
+
+        # Set all instances of ConfigRevision to false and set this instance to true
+        self.objects.all().update(active=True)
+        self.objects.get(pk=self.pk).update(active=True)
+
     activate.alters_data = True
 
     @property
diff --git a/netbox/netbox/config/__init__.py b/netbox/netbox/config/__init__.py
index 0e6ee5b2d67..0fd416ddcea 100644
--- a/netbox/netbox/config/__init__.py
+++ b/netbox/netbox/config/__init__.py
@@ -79,7 +79,8 @@ class Config:
 
         try:
             # Enforce the creation date as the ordering parameter
-            revision = ConfigRevision.objects.order_by('-created').first()
+            if not (revision := ConfigRevision.objects.filter(active=True).first()):
+                revision = ConfigRevision.objects.order_by('-created').first()
             if revision is None:
                 logger.debug("No previous configuration found in database; proceeding with default values")
                 return