Custom fields of type 'object' don't work with 'empty' filter expression #1526

New Issue

MrUnknownDE · 2026-04-06T03:01:34+02:00

MrUnknownDE commented

2026-04-06 03:01:34 +02:00

Originally created by @llamafilm on 8/1/2025

Deployment Type

Self-hosted

NetBox Version

v4.3.2

Python Version

3.12

Steps to Reproduce

Create a custom field called 'location_served' with type 'object (location)' and filter logic 'exact' and object types 'device'. (We use this when a device serves a room other than where it's physically located, for example an AV Closet next to a screening room.)
Add some values to this custom field on a few devices.
Try to filter /dcim/devices/?cf_location_served__empty=true

Expected Behavior

Since the custom field stores a numeric value, representing the ID of the linked object, it should respect all the numeric lookup expressions. Some expressions do work correctly, for example /dcim/devices/?cf_location_served__gt=18600.

Observed Behavior

It returns all objects, as if the filter were not present.

*Originally created by @llamafilm on 8/1/2025* ### Deployment Type Self-hosted ### NetBox Version v4.3.2 ### Python Version 3.12 ### Steps to Reproduce 1. Create a custom field called 'location_served' with type 'object (location)' and filter logic 'exact' and object types 'device'. (We use this when a device serves a room other than where it's physically located, for example an AV Closet next to a screening room.) 2. Add some values to this custom field on a few devices. 3. Try to filter `/dcim/devices/?cf_location_served__empty=true` ### Expected Behavior Since the custom field stores a numeric value, representing the ID of the linked object, it should respect all the numeric lookup expressions. Some expressions do work correctly, for example `/dcim/devices/?cf_location_served__gt=18600`. ### Observed Behavior It returns all objects, as if the filter were not present.

MrUnknownDE closed this issue

2026-04-06 03:01:34 +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#1526