Files
HealthLog/prisma
Marc-André Bombeck 18f3fd6b50 feat(sharing): carry the acting account on the session row
Migration 0293 adds `sessions.acting_as_user_id`. NULL, which is what
every session has carried until now, means the browser is acting as the
account it signed in as.

It is a selector and not an authorization. The resolver joins it against
a live grant on every request, so a value stranded here by a grant that
has since been revoked or expired confers nothing. Nothing sweeps the
column for correctness; the sweeps that exist are housekeeping, so a
delegate's browser lands back in its own account instead of on a wall of
403s.

ON DELETE SET NULL, not CASCADE. The two ends mean opposite things:
deleting the session's owner should take the session with it, which is
the existing `user_id` cascade, while deleting the account being acted on
must leave the delegate's browser session alive. A cascade on this side
would sign a delegate out of their own account because somebody else
deleted theirs.
2026-08-02 11:31:41 +02:00
..

prisma/

The database layer. HealthLog runs PostgreSQL 16 via Prisma 7. This directory holds the single schema file and the forward-only migration history; the generated client is emitted elsewhere.

Contents

  • schema.prisma — 61 models, one file. cuid() primary keys, snake_case columns via @map(...), encrypted columns mostly suffixed *Encrypted (search the file; there are 24 encrypted column references). The generator client block emits to ../src/generated/prisma (imported as @/generated/prisma).
  • migrations/ — numbered, forward-only SQL migrations (0001_… upward). migration_lock.toml pins the provider to postgresql.

Migration workflow

# author a migration from a schema edit
pnpm dlx prisma migrate dev --name <short_snake_case_name>

# regenerate the client after any schema change
pnpm dlx prisma generate

Number a new migration with the next free prefix. The production entrypoint runs prisma migrate deploy on boot, so every migration must apply cleanly forward — there is no down-migration path. Always include the migration file in the same change as the schema edit.

Conventions

  • Encryption is fail-closed: *Encrypted columns are written through @/lib/crypto (AES-256-GCM, versioned key ids); never store plaintext in an encrypted column. Key rotation is scripts/rotate-encryption-key.ts + docs/ops/encryption-key-rotation.md.
  • The generated client under src/generated/prisma is build output — do not edit it.
  • Schema-touching changes that affect the API surface must regenerate docs/api/openapi.yaml (see ../CLAUDE.md).

Related: ../src/lib/README.md (db.ts, rollups/), ../docs/ops/ (migrations + backup runbooks).