Paul Rastoin 652adc3c03 fix(server): backfill isSystemSideEffect on system fields provisioned before 2.15 (#22850)
## Context

The `isSystemSideEffect` column was introduced in **2.15** via a fast
instance command that added it with `DEFAULT false`. That stamped
`false` onto every pre-existing `fieldMetadata` row — including the 8
engine-owned system fields (`id`, `createdAt`, `updatedAt`, `deletedAt`,
`createdBy`, `updatedBy`, `position`, `searchVector`) of every object
provisioned before 2.15, regardless of the creation path (API metadata
**and** manifest sync).

The per-workspace backfill that should have re-flagged those existing
rows was explicitly deferred as out of scope in #21673 ("PR 2") and
never shipped for `fieldMetadata`. Because `isSystemSideEffect` is
configured with `toCompare: false`, no later sync ever repaired the
stale value either.

Since **2.20** the SDK no longer declares system fields in manifests. On
an up-to-date instance, `twenty plan` against an unchanged app therefore
diffs those stale-`false` system fields as **missing from the
manifest**, and they fall through the `isSystemSideEffectFlatEntity`
exclusion in
`buildAllFlatEntityOperationRecordByMetadataNameFromFromTo`. Deletion
inference then emits them as deletes, which the validator rejects:

```
Sync failed with 144 errors
fieldMetadata: 144 errors
  1..144. FIELD_MUTATION_NOT_ALLOWED: System fields cannot be deleted
```

(144 = 8 system fields × 18 custom objects, as reported on a production
2.20 instance.)

## What this PR does

Adds a **2.21 workspace command**
(`upgrade:2-21:backfill-system-field-is-system-side-effect`) that
iterates active/suspended workspaces and flags the 8 system fields as
`isSystemSideEffect: true`.

- **Resolution by deterministic universal identifier**: for each object
× reserved system field name it recomputes
`getFieldUniversalIdentifier(applicationUID, objectUID, name)` and looks
the row up in the flat maps. This is safe (and preferable to matching by
`name`) because the 2.19 backfill already took over system field UIDs
for every application, so an author-declared field reusing a reserved
name keeps its own identifier and is never touched. An extra `isSystem`
guard warn-and-skips any mismatch.
- **All applications** are covered (installed apps, workspace custom
app, twenty-standard): the stale flag is a function of *when* a row was
provisioned, not *how*. Installed/custom apps are the acute `twenty
plan` delete trap; twenty-standard has no trap today but flagging is a
zero-diff no-op (`toCompare: false`) and a prerequisite for the
end-state ownership invariant.
- **`name` is intentionally excluded**: the 2.20 slow instance command
deliberately flipped it to `false` (caller-provided default, not
engine-owned); re-flagging it would undo that migration.
- Supports `--dry-run`, updates only the collected rows, and invalidates
the `flatFieldMetadataMaps` workspace cache after the write (a raw
repository update does not invalidate it).

## Related

- Resolves the pre-2.15 regression tail of
twentyhq/core-team-issues#2635
- Follow-up to twentyhq/core-team-issues#2642 (system field side-effect
engine migration)

<!-- This is an auto-generated description by cubic. -->
<a
href="https://cubic.dev/pr/twentyhq/twenty/pull/22850?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. -->

---------

Co-authored-by: Weiko <corentin@twenty.com>
2026-07-13 08:55:54 +00:00
2026-06-11 11:02:28 +02:00

Twenty logo

The #1 Open-Source CRM

Website · Documentation · Roadmap · Discord · Figma

Twenty banner


Why Twenty

Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.

Learn more about why we built Twenty


Installation

Cloud

The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.

Build an app

Scaffold a new app with the Twenty CLI:

npx create-twenty-app my-app

Define objects, fields, and views as code:

import { defineObject, FieldType } from 'twenty-sdk/define';

export default defineObject({
  nameSingular: 'deal',
  namePlural: 'deals',
  labelSingular: 'Deal',
  labelPlural: 'Deals',
  fields: [
    { name: 'name', label: 'Name', type: FieldType.TEXT },
    { name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
    { name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
  ],
});

Then ship it to your workspace:

npx twenty app:publish --private

See the app development guide for objects, views, agents, and logic functions.

Self-hosting

Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.



Everything you need

Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.

Want to go deeper? Read the User Guide for product walkthroughs, or the Documentation for developer reference.

Create your apps

Learn more about apps in doc

Stay on top with version control

Learn more about version control in doc

All the tools you need to build anything

Learn more about primitives in doc

Customize your layouts

Learn more about layouts in doc

AI agents and chats

Learn more about AI in doc

Plus all the tools of a good CRM

Learn more about CRM features in doc


Stack

Thanks

Greptile      Sentry      Crowdin

Thanks to these amazing services that we use and recommend for code review (Greptile), catching bugs (Sentry) and translating (Crowdin).

Join the Community

Star the repo · Discord · Feature requests · Releases · X · LinkedIn · Crowdin · Contribute

S
Description
The open alternative to Salesforce, designed for AI.
Readme AGPL-3.0 1.4 GiB
Languages
TypeScript 79.6%
MDX 17.3%
JavaScript 2.7%
Python 0.2%
SCSS 0.1%