Paul Rastoin
1be5a0e54a
Closes twentyhq/core-team-issues#2667 ## What Default relations to the standard relation objects (`timelineActivities`, `attachments`, `noteTargets`, `taskTargets`) are now fully owned by the **metadata side-effect engine**. Neither the API transpilers nor the SDK manifest builder provision them anymore: any object creation, rename or deletion — regardless of the caller — goes through the same engine handlers. ## Why - Provisioning was duplicated across the API path and the SDK manifest builder, with diverging behavior. - Universal identifiers of relation fields were derived from object **names**, so renaming an object mutated them and forced lossy delete+create cycles on manifest sync. ## How ### Engine-owned lifecycle (side-effect handlers) - `objectSystemRelationsOnCreate`: provisions the 8 forward/reverse relation fields (+ join column indexes) when an object is created. - `objectSystemRelationsOnUpdate`: renames the reverse morph fields (`target<ObjectName>`) when their host object is renamed — a lossless `fieldMetadata.update`. - `objectSystemSideEffectsOnDelete`: cascades deletion of engine-owned fields/indexes when the object is deleted. - The API transpilers and the SDK `buildManifest` no longer inject these fields; `isSystemSideEffect: true` marks engine-owned entities, guarded by a granular property allowlist (only `isActive` is user-editable) and excluded from manifest deletion inference. ### Name-free deterministic universal identifiers New `getSystemRelationFieldUniversalIdentifier({ applicationUniversalIdentifier, objectUniversalIdentifier, relationTargetObjectUniversalIdentifier })` in `twenty-shared`, exported from `twenty-sdk/define`. The identifier is keyed on the two **object** identifiers instead of field names (direction encoded by argument order), so object renames never mutate relation field identifiers. It cannot collide with the name-based `getFieldUniversalIdentifier` derivation (field names cannot contain `:`). ### twenty-standard re-owned All 48 forward/reverse system relation field declarations in `STANDARD_OBJECTS` now pin the derived name-free identifiers (computed inline via the shared util) and carry `isSystemSideEffect: true`, with labels/icons declared explicitly (translated via `msg`). `twenty-standard` is projected as if the engine had generated these fields itself. ### 2.23 upgrade commands - `reconcile-system-relation-field-universal-identifier`: structurally matches existing default relation fields per workspace and backfills the derived universal identifiers, `isSystemSideEffect` flags, and standard labels/icons. - `upgrade-people-data-labs-application`: upgrades installed PDL apps to `1.0.7` right after the backfill to close the desync window (its views reference the re-derived identifiers). ### Misc - `people-data-labs` `1.0.7`: views temporarily pin the new derived identifiers (TODO: import from the next released `twenty-sdk`). - `UpgradeStatusModule` split out of `UpgradeModule` so the application module cluster can consume upgrade status/migration services without importing the versioned command bundles (fixes a require cycle that crashed boot). - Docs: `system-fields.mdx` documents the system relation fields and their resolver; `sync-and-recovery.mdx` plan example no longer shows auto-injected relations. ## Known red CI `people-data-labs (dockerhub-latest)` fails by design until the 2.23 server image is published: the app pins the new identifiers which only exist on a 2.23 server. The `local` leg (server built from this branch) is green. ## System fields are no longer manifest-authorable (accepted regression) The manifest converter no longer derives `isSystem` / `isSystemSideEffect` from field names. Reserved-system-named manifest fields (`id`, `createdAt`, `updatedAt`, `deletedAt`, `createdBy`, `updatedBy`, `position`, `searchVector`) are now skipped at conversion time when they carry the exact derived universal identifier (keeps manifests built with older SDKs installable), and rejected with `INVALID_INPUT` when they pin any other identifier. System fields are therefore fully engine-canonical: nothing a manifest carries can produce a system-flagged entity anymore. **Accepted regression**: a manifest can no longer influence system field properties at all. Previously a (legacy) re-declaration could shape them at creation — which actually produced broken system fields, e.g. a nullable, non-unique `id` — and could still toggle the allowlisted `isActive` / `universalSettings` afterwards. We consider this acceptable for now: per-app granularity over system fields will be reintroduced later through the **override framework**, which will also settle update semantics by forbidding direct updates over `isSystemSideEffect: true` entities and expressing divergence as overrides. `isSystemSideEffect`-only entities (the default relation fields provisioned by this PR) still have no engine-level update guard (see Follow-up below); that part is unchanged and also lands with the overrides refactor. ## Follow-up `isSystemSideEffect` field update/delete guards intentionally live at the API layer (`sanitize-raw-update-field-input.ts`, `from-delete-field-input-...util.ts`) rather than in the engine-level `FlatFieldMetadataValidatorService`. Moving them into the validator requires threading operation-origin (direct field mutation vs engine cascade) through the migration matrix, otherwise legitimate object rename/delete cascades (which carry `isSystemBuild=false`) would be rejected. Tracked in twentyhq/core-team-issues#2671. <!-- This is an auto-generated description by cubic. --> <a href="https://cubic.dev/pr/twentyhq/twenty/pull/22882?utm_source=github" target="_blank" rel="noopener noreferrer" data-no-image-dialog="true"><picture><source media="(prefers-color-scheme: dark)" srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source media="(prefers-color-scheme: light)" srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img alt="Review in cubic" src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a> <!-- End of auto-generated description by cubic. -->
Twenty Documentation
Official documentation for Twenty CRM, powered by Mintlify.
🌐 Live Site
Visit the documentation at docs.twenty.com
📚 Content
This repository contains:
- User Guide (46 pages) - Complete guide for Twenty users
- Developers (24 pages) - Technical documentation for developers
- Twenty UI (25 pages) - UI component library documentation
🚀 Local Development
To run the documentation locally:
# From the twenty monorepo root
npx nx run twenty-docs:dev
The documentation will be available at http://localhost:3000
📝 Editing Content
Adding/Editing Pages
-
Edit MDX files in the appropriate directory:
user-guide/- User documentationdevelopers/- Developer documentationtwenty-ui/- Component documentation
-
Update
navigation/base-structure.jsonif you need to change the tab/group hierarchy or add/remove pages. This file stays in the repo and is not uploaded to Crowdin. -
Keep the translation template (
navigation/navigation.template.json) in sync by runningyarn docs:generate-navigation-templateafter editing the base structure. This template is the only file that should be pushed to Crowdin. -
For each translated locale pulled from Crowdin, ensure a
packages/twenty-docs/l/<language>/navigation.jsonfile exists. These files contain labels only; page slugs always come from the base structure. -
Run
yarn docs:generateto rebuilddocs.jsonfrom the base structure + translated labels.
MDX Format
All documentation pages use MDX format with frontmatter:
---
title: Page Title
description: Page description
image: /images/path/to/image.png
---
Your content here...
Adding Images
- Place images in the
/images/directory - Reference them in MDX:
 - Or use Mintlify Frame component:
<Frame>
<img src="/images/your-image.png" alt="Description" />
</Frame>
🔧 Configuration
navigation/base-structure.json- Source of truth for tabs, groups, icons, and page slugs (English only, not sent to Crowdin).navigation/navigation.template.json- Generated translation template (labels only) that is uploaded to Crowdin.l/<language>/navigation.json- Locale-specific label files pulled from Crowdin.docs.json- Generated Mintlify configuration (always runyarn docs:generateafter modifying navigation files).package.json- Package dependencies and scripts (docs:generate,docs:generate-navigation-template, …).project.json- Nx workspace configuration
📦 Validation
# Validate the documentation build
npx nx run twenty-docs:validate
🔗 Links
🤝 Contributing
To contribute to the documentation:
- Fork the repository
- Make your changes in the
packages/twenty-docsdirectory - Test locally with
npx nx run twenty-docs:dev - Submit a pull request
📄 License
This documentation is part of the Twenty project and is licensed under AGPL-3.0.