fix(ui): monomorphic relationship fields don't support multi-select with in/not_in operators by PatrikKozak · Pull Request #15886 · payloadcms/payload

PatrikKozak · 2026-03-09T21:32:31Z

Overview

Fixes relationship filter UI to support multi-select when using in or not_in operators, regardless of the field's hasMany property. Previously, only hasMany: true fields supported multi-select, making it impossible to filter by multiple values on hasMany: false relationship fields.

Key Changes

Changed multi-select logic from hasMany only to hasMany || ['in', 'not_in'].includes(operator)
- Relationship fields with hasMany: false can now select multiple values with in/not_in operators
- Matches the existing behavior of select fields which allow multi-select based on operator
Updated test helpers to support array values in filter inputs
Added e2e tests for multi-value filtering on hasMany: false relationship fields

Design Decisions

The in and not_in operators semantically expect arrays of values, so the UI should support multi-select regardless of whether the field itself stores multiple values. This aligns with how select fields already work - a hasMany: false select field still lets you pick multiple values when using "is in".

Also clarified that polymorphic relationships (relationTo: ['posts', 'users']) don't support in/not_in operators since they store {relationTo, value} objects and these operators only match on value.

Fixes #15882

…perators

github-actions · 2026-03-09T21:42:59Z

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Details

Next to the size is how much the size has increased or decreased compared with the base branch of this PR.

‼️: Size increased by 20% or more. Special attention should be given to this.
⚠️: Size increased in acceptable range (lower than 20%).
✅: No change or even downsized.
🗑️: The out file is deleted: not found in base branch.
🆕: The out file is newly found: will be added to base branch.

github-actions · 2026-03-16T14:37:07Z

🚀 This is included in version v3.79.1

fix(ui): enable multi-select for relationship fields with in/not_in o…

04fc5a2

…perators

PatrikKozak requested review from AlessioGr, JarrodMFlesch and jacobsfletch as code owners March 9, 2026 21:32

github-actions Bot added the created-by: Payload team label Mar 9, 2026

test: adjust addListFilter function

b845c9e

paulpopus approved these changes Mar 10, 2026

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PatrikKozak merged commit f71ef61 into main Mar 10, 2026
298 of 300 checks passed

PatrikKozak deleted the fix-relationship-multiselect-in-operator branch March 10, 2026 13:50

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fix(ui): monomorphic relationship fields don't support multi-select with in/not_in operators#15886

fix(ui): monomorphic relationship fields don't support multi-select with in/not_in operators#15886
PatrikKozak merged 2 commits into
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fix-relationship-multiselect-in-operator

PatrikKozak commented Mar 9, 2026

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Meta file: packages/next/meta_index.json, Out file: esbuild/index.js

Meta file: packages/payload/meta_index.json, Out file: esbuild/index.js

Meta file: packages/payload/meta_shared.json, Out file: esbuild/exports/shared.js

Meta file: packages/richtext-lexical/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

Meta file: packages/ui/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

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PatrikKozak commented Mar 9, 2026

Overview

Key Changes

Design Decisions

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📦 esbuild Bundle Analysis for payload

Meta file: packages/next/meta_index.json, Out file: esbuild/index.js

Meta file: packages/payload/meta_index.json, Out file: esbuild/index.js

Meta file: packages/payload/meta_shared.json, Out file: esbuild/exports/shared.js

Meta file: packages/richtext-lexical/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

Meta file: packages/ui/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

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