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assign-vlans view throws error on virtual machines where the cluster has no site #1822

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opened 2025-12-29 17:19:32 +01:00 by adam · 0 comments
adam commented 2025-12-29 17:19:32 +01:00
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Originally created by @kasimon on GitHub (Jul 3, 2018).

Issue type

[ ] Feature request
[X] Bug report
[ ] Documentation
[ ] Housekeeping

Environment

  • Python version: 2.7.13
  • NetBox version: 2.3.5

Description

When trying to assign a vlan to an interface of a virtual machine where the cluster has no site set, a server error happens:

 Server Error
There was a problem with your request. Please contact an administrator.
The complete exception is provided below:

'NoneType' object has no attribute 'name'
If further assistance is required, please post to the NetBox mailing list.

The url is netbox/dcim/interfaces/447/assign-vlans/?return_url=/netbox/virtualization/vm-interfaces/447/edit/

The problem seems to be this line: 97863115ba/netbox/dcim/forms.py (L1784)

Here is the stack trace:

Environment:


Request Method: GET
Request URL: http://REDACTED/netbox/dcim/interfaces/447/assign-vlans/?return_url=/netbox/virtualization/vm-interfaces/447/edit/

Django Version: 1.11.14
Python Version: 2.7.13
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'corsheaders',
 'debug_toolbar',
 'django_filters',
 'django_tables2',
 'mptt',
 'rest_framework',
 'timezone_field',
 'circuits',
 'dcim',
 'ipam',
 'extras',
 'secrets',
 'tenancy',
 'users',
 'utilities',
 'virtualization',
 'drf_yasg')
Installed Middleware:
('debug_toolbar.middleware.DebugToolbarMiddleware',
 'corsheaders.middleware.CorsMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware',
 'utilities.middleware.ExceptionHandlingMiddleware',
 'utilities.middleware.LoginRequiredMiddleware',
 'utilities.middleware.APIVersionMiddleware')



Traceback:

File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/core/handlers/exception.py" in inner
  41.             response = get_response(request)

File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/contrib/auth/mixins.py" in dispatch
  92.         return super(PermissionRequiredMixin, self).dispatch(request, *args, **kwargs)

File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/views/generic/base.py" in dispatch
  88.         return handler(request, *args, **kwargs)

File "/opt/netbox/netbox/utilities/views.py" in get
  179.         form = self.model_form(instance=obj, initial=initial_data)

File "/opt/netbox/netbox/dcim/forms.py" in __init__
  1784.             vlan_choices.append((parent.site.name, [(vlan.pk, vlan) for vlan in site_vlans]))

Exception Type: AttributeError at /netbox/dcim/interfaces/447/assign-vlans/
Exception Value: 'NoneType' object has no attribute 'name'
Originally created by @kasimon on GitHub (Jul 3, 2018). ### Issue type [ ] Feature request <!-- An enhancement of existing functionality --> [X] Bug report <!-- Unexpected or erroneous behavior --> [ ] Documentation <!-- A modification to the documentation --> [ ] Housekeeping <!-- Changes pertaining to the codebase itself --> ### Environment * Python version: 2.7.13 * NetBox version: 2.3.5 <!-- BUG REPORTS must include: * A list of the steps needed for someone else to reproduce the bug * A description of the expected and observed behavior * Any relevant error messages (screenshots may also help)--> ### Description When trying to assign a vlan to an interface of a virtual machine where the cluster has no site set, a server error happens: <pre> Server Error There was a problem with your request. Please contact an administrator. The complete exception is provided below: <type 'exceptions.AttributeError'> 'NoneType' object has no attribute 'name' If further assistance is required, please post to the NetBox mailing list. </pre> The url is `netbox/dcim/interfaces/447/assign-vlans/?return_url=/netbox/virtualization/vm-interfaces/447/edit/` The problem seems to be this line: https://github.com/digitalocean/netbox/blob/97863115ba2f8e889b8741099c5b1a6eb0a2051b/netbox/dcim/forms.py#L1784 Here is the stack trace: <pre> Environment: Request Method: GET Request URL: http://REDACTED/netbox/dcim/interfaces/447/assign-vlans/?return_url=/netbox/virtualization/vm-interfaces/447/edit/ Django Version: 1.11.14 Python Version: 2.7.13 Installed Applications: ('django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'django.contrib.humanize', 'corsheaders', 'debug_toolbar', 'django_filters', 'django_tables2', 'mptt', 'rest_framework', 'timezone_field', 'circuits', 'dcim', 'ipam', 'extras', 'secrets', 'tenancy', 'users', 'utilities', 'virtualization', 'drf_yasg') Installed Middleware: ('debug_toolbar.middleware.DebugToolbarMiddleware', 'corsheaders.middleware.CorsMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'django.middleware.security.SecurityMiddleware', 'utilities.middleware.ExceptionHandlingMiddleware', 'utilities.middleware.LoginRequiredMiddleware', 'utilities.middleware.APIVersionMiddleware') Traceback: File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/core/handlers/exception.py" in inner 41. response = get_response(request) File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response 187. response = self.process_exception_by_middleware(e, request) File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response 185. response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/views/generic/base.py" in view 68. return self.dispatch(request, *args, **kwargs) File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/contrib/auth/mixins.py" in dispatch 92. return super(PermissionRequiredMixin, self).dispatch(request, *args, **kwargs) File "/opt/venvs/netbox/local/lib/python2.7/site-packages/django/views/generic/base.py" in dispatch 88. return handler(request, *args, **kwargs) File "/opt/netbox/netbox/utilities/views.py" in get 179. form = self.model_form(instance=obj, initial=initial_data) File "/opt/netbox/netbox/dcim/forms.py" in __init__ 1784. vlan_choices.append((parent.site.name, [(vlan.pk, vlan) for vlan in site_vlans])) Exception Type: AttributeError at /netbox/dcim/interfaces/447/assign-vlans/ Exception Value: 'NoneType' object has no attribute 'name' </pre>
adam added the type: bugstatus: accepted labels 2025-12-29 17:19:32 +01:00
adam closed this issue 2025-12-29 17:19:32 +01:00
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Reference: starred/netbox#1822
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