---
id: T01
parent: S03
milestone: M019
provides: []
requires: []
affects: []
key_files: ["backend/models.py", "alembic/versions/017_add_consent_tables.py"]
key_decisions: ["Used RESTRICT on updated_by/changed_by FK to users to prevent orphaning consent audit history", "ConsentField enum in models.py for application-level validation, not as DB column type"]
patterns_established: []
drill_down_paths: []
observability_surfaces: []
duration: ""
verification_result: "Both verification checks pass: model imports succeed and migration file is valid Python."
completed_at: 2026-04-03T22:09:25.049Z
blocker_discovered: false
---

# T01: Added VideoConsent and ConsentAuditLog models with ConsentField enum and Alembic migration 017

> Added VideoConsent and ConsentAuditLog models with ConsentField enum and Alembic migration 017

## What Happened
---
id: T01
parent: S03
milestone: M019
key_files:
  - backend/models.py
  - alembic/versions/017_add_consent_tables.py
key_decisions:
  - Used RESTRICT on updated_by/changed_by FK to users to prevent orphaning consent audit history
  - ConsentField enum in models.py for application-level validation, not as DB column type
duration: ""
verification_result: passed
completed_at: 2026-04-03T22:09:25.049Z
blocker_discovered: false
---

# T01: Added VideoConsent and ConsentAuditLog models with ConsentField enum and Alembic migration 017

**Added VideoConsent and ConsentAuditLog models with ConsentField enum and Alembic migration 017**

## What Happened

Added ConsentField enum, VideoConsent model (mutable current consent state per video with unique constraint on source_video_id), and ConsentAuditLog model (append-only versioned change log) to backend/models.py. Created Alembic migration 017_add_consent_tables.py with both tables, FKs, unique constraint, and index. Used RESTRICT on user FKs to prevent orphaning audit records.

## Verification

Both verification checks pass: model imports succeed and migration file is valid Python.

## Verification Evidence

| # | Command | Exit Code | Verdict | Duration |
|---|---------|-----------|---------|----------|
| 1 | `cd backend && python -c "from models import VideoConsent, ConsentAuditLog, ConsentField; print('OK')"` | 0 | ✅ pass | 500ms |
| 2 | `python -c "import importlib.util; spec = importlib.util.spec_from_file_location('m', 'alembic/versions/017_add_consent_tables.py'); mod = importlib.util.module_from_spec(spec)"` | 0 | ✅ pass | 200ms |


## Deviations

None.

## Known Issues

None.

## Files Created/Modified

- `backend/models.py`
- `alembic/versions/017_add_consent_tables.py`


## Deviations
None.

## Known Issues
None.
