Fixes #1624: Add VM count to device roles table

netbox/dcim/tables.py

@@ -362,6 +362,7 @@ class DeviceRoleTable(BaseTable):
     pk = ToggleColumn()
     name = tables.LinkColumn(verbose_name='Name')
     device_count = tables.Column(verbose_name='Devices')
+    vm_count = tables.Column(verbose_name='VMs')
     color = tables.TemplateColumn(COLOR_LABEL, verbose_name='Label')
     slug = tables.Column(verbose_name='Slug')
     actions = tables.TemplateColumn(template_code=DEVICEROLE_ACTIONS, attrs={'td': {'class': 'text-right'}},
@@ -369,7 +370,7 @@ class DeviceRoleTable(BaseTable):
 
     class Meta(BaseTable.Meta):
         model = DeviceRole
-        fields = ('pk', 'name', 'device_count', 'color', 'vm_role', 'slug', 'actions')
+        fields = ('pk', 'name', 'device_count', 'vm_count', 'color', 'vm_role', 'slug', 'actions')
 
 
 #

netbox/dcim/views.py

@@ -700,7 +700,10 @@ class DeviceBayTemplateBulkDeleteView(PermissionRequiredMixin, BulkDeleteView):
 #
 
 class DeviceRoleListView(ObjectListView):
-    queryset = DeviceRole.objects.annotate(device_count=Count('devices'))
+    queryset = DeviceRole.objects.annotate(
+        device_count=Count('devices', distinct=True),
+        vm_count=Count('virtual_machines', distinct=True)
+    )
     table = tables.DeviceRoleTable
     template_name = 'dcim/devicerole_list.html'