Event Rule on MACAddress - Custom Script fail with error #1342

New Issue

MrUnknownDE · 2026-04-05T23:36:12+02:00

MrUnknownDE commented

2026-04-05 23:36:12 +02:00

Originally created by @stefanoparis-mgh on 9/4/2025

Deployment Type

Self-hosted

NetBox Version

v4.4.0

Python Version

3.11

Steps to Reproduce

Define simple custom script that log a row (script attached)
Create Event Rule on MACAddress Create/Update that execute previously created script
Edit MACAddress

Script can be executed manually without error. In version 4.3.7 script worked correctly

Test.py

Expected Behavior

Script get executed with a simple log row

Observed Behavior

Error raised:
AttributeError("'NoneType' object has no attribute 'id'")

*Originally created by @stefanoparis-mgh on 9/4/2025* ### Deployment Type Self-hosted ### NetBox Version v4.4.0 ### Python Version 3.11 ### Steps to Reproduce 1. Define simple custom script that log a row (script attached) 2. Create Event Rule on MACAddress Create/Update that execute previously created script 3. Edit MACAddress Script can be executed manually without error. In version 4.3.7 script worked correctly [Test.py](https://github.com/user-attachments/files/22132515/Test.py) ### Expected Behavior Script get executed with a simple log row ### Observed Behavior Error raised: AttributeError("'NoneType' object has no attribute 'id'")

MrUnknownDE closed this issue

2026-04-05 23:36:12 +02:00

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Branches Tags

main

21455-sql-indexes-audit

21357-register-model-actions

feature

20924-plugin-ui-components

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

21157-export-template-public-models

21025-pre-render-config-contexts

21364-swagger

feature-ip-prefix-link

20911-dropdown-3

fix_module_substitution

21160-filterset

20911-dropdown-2

20044-elevation-stuck-lightmode

7604-filter-modifiers-v3

20660-script-load

19724-graphql

14884-script

19720-macaddress-interface-generic-relation

fix-19669-api-image-download

7604-filter-modifiers

19275-fixes-interface-bulk-edit

fix-17794-get_field_value_return_list

11507-show-aggregate-and-rir-on-api

9583-add_column_specific_search_field_to_tables

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Reference: github/netbox#1342