fix tunnel admin

services/admin.py

@@ -16,6 +16,8 @@ from django.contrib.postgres.aggregates import StringAgg
 from django.db import connection
 from django.core.cache import cache
 
+from djgeojson.views import GeoJSONLayerView
+
 from djadhere.utils import get_active_filter
 from adhesions.models import Adhesion
 from .models import Service, ServiceType, IPPrefix, IPResource, Route, Tunnel, ServiceAllocation, Antenna, AntennaAllocation, Allocation
@@ -342,7 +344,7 @@ class RouteAdmin(admin.ModelAdmin):
         return False
 
 
-class TunnelAdmin(RouteAdmin):
+class TunnelAdmin(admin.ModelAdmin):
     list_display = ('name', 'description', 'created', 'active')
     list_filter = (
         ActiveTunnelFilter,
@@ -417,13 +419,11 @@ class AntennaAdmin(geo_admin.OSMGeoAdmin):
         return False
 
     def get_urls(self):
-        urls = super().get_urls()
-        from djgeojson.views import GeoJSONLayerView
         my_urls = [
             url(r'^map/$', self.admin_site.admin_view(self.map_view, cacheable=True), name='antenna-map'),
             url(r'^map/data.json$', self.admin_site.admin_view(GeoJSONLayerView.as_view(model=Antenna, geometry_field='position')), name='antenna-map-data'),
         ]
-        return my_urls + urls
+        return my_urls + super().get_urls()
 
     def map_view(self, request):
         return TemplateResponse(request, 'services/antenna_map.html', {