From 047a248ba31e851463d449d15c1957ae0f6f5604 Mon Sep 17 00:00:00 2001
From: Peter Eckel <pe-git@hindenburgring.com>
Date: Tue, 15 Sep 2026 13:52:28 +0200
Subject: [PATCH] Fixed error 500 when deleting servers with interfaces in the
 GUI

---
 netbox_dhcp/models/dhcp_server.py | 6 ++++--
 netbox_dhcp/urls.py               | 8 ++++++++
 netbox_dhcp/views/dhcp_server.py  | 6 ++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/netbox_dhcp/models/dhcp_server.py b/netbox_dhcp/models/dhcp_server.py
index 800709d..25b6ad7 100644
--- a/netbox_dhcp/models/dhcp_server.py
+++ b/netbox_dhcp/models/dhcp_server.py
@@ -120,8 +120,10 @@ class Meta:
     )
 
     def __str__(self):
-        if hasattr(self, "name"):
-            return self.name
+        if self.device_interface is not None:
+            return self.device_interface.name
+        if self.virtual_machine_interface is not None:
+            return self.virtual_machine_interface.name
 
         return super().__str__()
 
diff --git a/netbox_dhcp/urls.py b/netbox_dhcp/urls.py
index 7ccf292..cee72f2 100644
--- a/netbox_dhcp/urls.py
+++ b/netbox_dhcp/urls.py
@@ -67,6 +67,14 @@
         "dhcpservers/<int:pk>/",
         include(get_model_urls("netbox_dhcp", "dhcpserver")),
     ),
+    path(
+        "dhcpserverinterfaces/",
+        include(get_model_urls("netbox_dhcp", "dhcpserverinterface", detail=False)),
+    ),
+    path(
+        "dhcpserverinterfaces/<int:pk>/",
+        include(get_model_urls("netbox_dhcp", "dhcpserverinterface")),
+    ),
     path(
         "pdpools/",
         include(get_model_urls("netbox_dhcp", "pdpool", detail=False)),
diff --git a/netbox_dhcp/views/dhcp_server.py b/netbox_dhcp/views/dhcp_server.py
index 7b29702..1537030 100644
--- a/netbox_dhcp/views/dhcp_server.py
+++ b/netbox_dhcp/views/dhcp_server.py
@@ -19,6 +19,7 @@
 from netbox_dhcp.models import (
     ClientClass,
     DHCPServer,
+    DHCPServerInterface,
     HostReservation,
     Option,
     OptionDefinition,
@@ -52,6 +53,11 @@
 )
 
 
+@register_model_view(DHCPServerInterface)
+class DHCPServerInterfaceView(generic.ObjectView):
+    queryset = DHCPServerInterface.objects.all()
+
+
 @register_model_view(DHCPServer, "list", path="", detail=False)
 class DHCPServerListView(generic.ObjectListView):
     queryset = DHCPServer.objects.all()