From 8cc35eca2725965c58b6caa7b382560c08e5adb3 Mon Sep 17 00:00:00 2001
From: atownson <52260120+atownson@users.noreply.github.com>
Date: Mon, 7 Apr 2025 14:31:04 -0500
Subject: [PATCH] Populate omitted custom field default values on save

---
 netbox/netbox/models/features.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/netbox/netbox/models/features.py b/netbox/netbox/models/features.py
index a97227770..b58d232cd 100644
--- a/netbox/netbox/models/features.py
+++ b/netbox/netbox/models/features.py
@@ -301,6 +301,14 @@ class CustomFieldsMixin(models.Model):
             if cf.required and cf.name not in self.custom_field_data:
                 raise ValidationError(_("Missing required custom field '{name}'.").format(name=cf.name))
 
+    def save(self, *args, **kwargs):
+        # Populate default values if omitted
+        for cf in self.custom_fields.filter(default__isnull=False):
+            if cf.name not in self.custom_field_data:
+                self.custom_field_data[cf.name] = cf.default
+
+        super().save(*args, **kwargs)
+
 
 class CustomLinksMixin(models.Model):
     """