Fixes #6326: Enable filtering assigned VLANs by group in interface edit form

netbox/dcim/forms.py

@@ -18,7 +18,7 @@ from extras.forms import (
 )
 from extras.models import Tag
 from ipam.constants import BGP_ASN_MAX, BGP_ASN_MIN
-from ipam.models import IPAddress, VLAN
+from ipam.models import IPAddress, VLAN, VLANGroup
 from tenancy.forms import TenancyFilterForm, TenancyForm
 from tenancy.models import Tenant
 from utilities.forms import (
@@ -3109,15 +3109,26 @@ class InterfaceForm(BootstrapMixin, InterfaceCommonForm, CustomFieldModelForm):
             'type': 'lag',
         }
     )
+    vlan_group = DynamicModelChoiceField(
+        queryset=VLANGroup.objects.all(),
+        required=False,
+        label='VLAN group'
+    )
     untagged_vlan = DynamicModelChoiceField(
         queryset=VLAN.objects.all(),
         required=False,
-        label='Untagged VLAN'
+        label='Untagged VLAN',
+        query_params={
+            'group_id': '$vlan_group',
+        }
     )
     tagged_vlans = DynamicModelMultipleChoiceField(
         queryset=VLAN.objects.all(),
         required=False,
-        label='Tagged VLANs'
+        label='Tagged VLANs',
+        query_params={
+            'group_id': '$vlan_group',
+        }
     )
     tags = DynamicModelMultipleChoiceField(
         queryset=Tag.objects.all(),