# Migrate Attachment Author to CreatedBy Field
**Twill Task**: https://twill.ai/twentyhq/ENG/tasks/7
## Summary
This PR implements a migration to transition the `Attachment` object
from using an `author` relation field to using the standard `createdBy`
field, addressing issue
https://github.com/twentyhq/core-team-issues/issues/1594.
## Changes
- **Added migration command**
(`1-8-migrate-attachment-author-to-created-by.command.ts`):
- Migrates existing attachment data to use `createdBy` instead of
`author`
- Ensures data integrity during the transition to the standard field
pattern
- **Updated Attachment workspace entity**:
- Added `createdBy` relation field to the `Attachment` standard object
- Registered new field ID in `standard-field-ids.ts` constants
- **Integrated migration into upgrade pipeline**:
- Added migration module for version 1.8
- Registered in the main upgrade version command module
This change aligns the `Attachment` object with Twenty's standard field
conventions by using the built-in `createdBy` field instead of a custom
`author` field.
---
Fixes https://github.com/twentyhq/core-team-issues/issues/1594
---------
Co-authored-by: Twill <agent@twill.ai>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
Co-authored-by: Félix Malfait <felix@twenty.com>
In this PR
- closing https://github.com/twentyhq/core-team-issues/issues/313
- adding permission gates on workspace settings and security settings
- adding integration tests for each of the protected setting and
security
twill-hq[bot]
