Improve query performance of ContentTypeFilter #364

New Issue

MrUnknownDE · 2026-04-05T16:27:25+02:00

MrUnknownDE commented

2026-04-05 16:27:25 +02:00

Originally created by @jeremystretch on 2/12/2026

NetBox Version

v4.5.2

Python Version

3.12

Area(s) of Concern

User Interface
REST API
GraphQL API
Python ORM
Other

Details

Due to the filtering logic in place, ContentTypeFilter currently forces an INNER JOIN SQL query:

try:
    app_label, model = value.lower().split('.')
except ValueError:
    return qs.none()
return qs.filter(
    **{
        f'{self.field_name}__app_label': app_label,
        f'{self.field_name}__model': model
    }
)

This can be avoided by first fetching the ContentType and then query directly against its ID:

try:
    app_label, model = key.lower().split('.')
    ct = ContentType.objects.get_by_natural_key(app_label, model)
except (ValueError, ContentType.DoesNotExist):
    return qs.none()
return qs.filter(
    **{
        f'{self.field_name}': content_type,
    }
)

*Originally created by @jeremystretch on 2/12/2026* ### NetBox Version v4.5.2 ### Python Version 3.12 ### Area(s) of Concern - [x] User Interface - [x] REST API - [ ] GraphQL API - [ ] Python ORM - [ ] Other ### Details Due to the filtering logic in place, ContentTypeFilter currently forces an `INNER JOIN` SQL query: ```python try: app_label, model = value.lower().split('.') except ValueError: return qs.none() return qs.filter( **{ f'{self.field_name}__app_label': app_label, f'{self.field_name}__model': model } ) ``` This can be avoided by first fetching the ContentType and then query directly against its ID: ```python try: app_label, model = key.lower().split('.') ct = ContentType.objects.get_by_natural_key(app_label, model) except (ValueError, ContentType.DoesNotExist): return qs.none() return qs.filter( **{ f'{self.field_name}': content_type, } ) ```

MrUnknownDE closed this issue

2026-04-05 16:27:25 +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

No Label netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox netbox status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted status: accepted type: performance type: performance type: performance type: performance type: performance type: performance type: performance type: performance

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Reference: github/netbox#364