500 when updating devices via PATCH /api/dcim/devices #1212

New Issue

MrUnknownDE · 2026-04-05T22:03:30+02:00

MrUnknownDE commented

2026-04-05 22:03:30 +02:00

Originally created by @PaulR282 on 9/19/2025

NetBox Edition

NetBox Community

NetBox Version

v.4.4.1

Python Version

3.12

Steps to Reproduce

Make an API PATCH call to /api/dcim/devices with a simple payload like:[{"id":XX,"position":null}]

Expected Behavior

The device should be saved with no position

Observed Behavior

The device does get saved with no position but the call returns a 500 with the following error:

TypeError at /api/dcim/devices/
'NoneType' object is not callable
Request Method:	PATCH
Request URL:	https://********/api/dcim/devices/
Django Version:	5.2.6
Exception Type:	TypeError
Exception Value:	
'NoneType' object is not callable
Exception Location:	/opt/netbox/netbox/extras/events.py, line 133, in process_event_rules
Raised during:	dcim.api.views.DeviceViewSet
Python Executable:	/opt/netbox-4.4.1/venv/bin/python3
Python Version:	3.12.3

*Originally created by @PaulR282 on 9/19/2025* ### NetBox Edition NetBox Community ### NetBox Version v.4.4.1 ### Python Version 3.12 ### Steps to Reproduce Make an API PATCH call to /api/dcim/devices with a simple payload like:`[{"id":XX,"position":null}]` ### Expected Behavior The device should be saved with no position ### Observed Behavior The device does get saved with no position but the call returns a 500 with the following error: ``` TypeError at /api/dcim/devices/ 'NoneType' object is not callable Request Method: PATCH Request URL: https://********/api/dcim/devices/ Django Version: 5.2.6 Exception Type: TypeError Exception Value: 'NoneType' object is not callable Exception Location: /opt/netbox/netbox/extras/events.py, line 133, in process_event_rules Raised during: dcim.api.views.DeviceViewSet Python Executable: /opt/netbox-4.4.1/venv/bin/python3 Python Version: 3.12.3 ```

MrUnknownDE closed this issue

2026-04-05 22:03:30 +02:00

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Branches Tags

main

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feature

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21766-improve-test-coverage-for-sortable-table-columns

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7604-filter-modifiers-v3

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9583-add_column_specific_search_field_to_tables

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Reference: github/netbox#1212