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feat(role): reflect ReBAC doc with changes

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This commit is contained in:
Edouard Vanbelle
2026-06-17 23:35:58 +02:00
parent ae219b81fc
commit cc6f53528b
3 changed files with 37 additions and 10 deletions
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docs/architecture/rebac-authorization.md
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@@ -107,9 +107,19 @@ storage.access_grants
expires_at TIMESTAMPTZ NULL
```
One row per `(subject, permission, resource)` triple. An "admin role on folder
One row per `(subject, permission, resource)` triple. An "owner role on folder
X for user Y" is 6 rows; a "viewer role" is 1 row.
> **Note (D-Prep, 2026-06-17):** the role assignment has since pivoted into
> a separate `storage.role_grants` table that stores **one row per role
> assignment** rather than one per permission. `access_grants` stays
> populated via dual-write during the transition; the engine reads the
> role-keyed table for authz decisions. The cleanup PR drops
> `access_grants` after the dual-write window. The historical role name
> `Admin` was renamed to `Owner` at the same time, to disambiguate from
> `UserRole::Admin` (user-account privilege) and match Drive plan
> terminology.
Cleanup is trigger-driven (`trg_cleanup_grants_folder`, …): when a resource or
subject is deleted, all referencing grants disappear in the same transaction.