update vlan adapter (#372)

* update vlan adapter

* add changelog fragment

* ruff

* add debug message

---------

Co-authored-by: David Cates <david.cates@chevron.com>

Author: Dav-C

changes/372.fixed

@@ -0,0 +1 @@
+Fixed bug when loading Nautobot Vlans with multiple locations assigned. Only Vlans with 1 location will be considered for the sync.

nautobot_device_onboarding/diffsync/adapters/sync_network_data_adapters.py

@@ -138,7 +138,15 @@ def load_vlans(self):
         """
         # TODO: update this to support multiple locations per VLAN after the setting for this feature has been added.
         location_ids = list(self.job.devices_to_load.values_list("location__id", flat=True))
-        for vlan in VLAN.objects.filter(location__in=location_ids):
+        for vlan in VLAN.objects.filter(locations__in=location_ids):
+            if (
+                vlan.locations.count() > 1
+            ):  # TODO: A conditional check will be needed here to support multiple locations per VLAN
+                if self.job.debug:
+                    self.job.logger.debug(
+                        f"Vlan {vlan.name} has multiple locations. Skipping Vlan load for {vlan.name}."
+                    )
+                continue
             network_vlan = self.vlan(
                 adapter=self,
                 name=vlan.name,