VLANGroup: Single VLAN IDs render as n-n after save #1153

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MrUnknownDE · 2026-04-05T21:10:47+02:00

MrUnknownDE commented

2026-04-05 21:10:47 +02:00

Originally created by @pheus on 10/2/2025

NetBox Edition

NetBox Community

NetBox Version

v4.4.2

Python Version

3.12

Steps to Reproduce

Go to IPAM → VLAN Groups → Add.
Create a new VLAN group (any name/scope).
In VLAN ID Ranges, enter: 1-5,10,20-30.
Save, view the group (list & detail), then click Edit again.

Expected Behavior

The single VLAN ID 10 remains displayed as 10 (i.e., the value stays 1-5,10,20-30) across:

The VLAN groups list/table
The group detail view
The edit form field

Observed Behavior

After saving, the value is rendered as 1-5,10-10,20-30.
The single VLAN 10 is displayed as a range (10-10) in the list, detail view, and pre‑populated edit form.

Notes

VLAN groups support multiple VID ranges; single VLAN IDs are valid inputs. However, the UI expands singletons to n-n when displaying the saved value.
Proposal: When serializing VID ranges for display and when pre‑populating the edit form, collapse any range where start == end to a single integer. This keeps the canonical representation user‑friendly without changing storage semantics.

*Originally created by @pheus on 10/2/2025* ### NetBox Edition NetBox Community ### NetBox Version v4.4.2 ### Python Version 3.12 ### Steps to Reproduce 1. Go to **IPAM → VLAN Groups → Add**. 2. Create a new VLAN group (any name/scope). 3. In **VLAN ID Ranges**, enter: `1-5,10,20-30`. 4. Save, view the group (list & detail), then click **Edit** again. ### Expected Behavior The single VLAN ID `10` remains displayed as `10` (i.e., the value stays `1-5,10,20-30`) across: - The VLAN groups list/table - The group detail view - The edit form field ### Observed Behavior After saving, the value is rendered as `1-5,10-10,20-30`. The single VLAN `10` is displayed as a range (`10-10`) in the list, detail view, and pre‑populated edit form. ### Notes - VLAN groups support multiple VID ranges; single VLAN IDs are valid inputs. However, the UI expands singletons to `n-n` when displaying the saved value. - Proposal: When serializing VID ranges for display and when pre‑populating the edit form, collapse any range where `start == end` to a single integer. This keeps the canonical representation user‑friendly without changing storage semantics.

MrUnknownDE closed this issue

2026-04-05 21:10:47 +02:00

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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

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fix_module_substitution

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fix-19669-api-image-download

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19275-fixes-interface-bulk-edit

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

9583-add_column_specific_search_field_to_tables

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Reference: github/netbox#1153