Date: January 31, 2026 Tester: Claude Code (Automated Testing) Environment: Local Development (Supabase + Next.js 16)
Successfully identified and fixed a critical database issue preventing lesson completions. The root cause was missing profile records for all test users, which violated foreign key constraints when students tried to mark lessons complete.
| Test | Status | Priority | Notes |
|---|---|---|---|
| Lesson Completion | ✅ PASSING | P0 - Critical | Fixed with profile creation migration |
| Comments System | ⏳ Pending | P1 - High | Table exists, needs testing |
| Course Reviews | ❌ FAILING | P1 - High | Schema mismatch - column names wrong |
| Admin Dashboard | ⏳ Pending | P0 - Critical | Needs testing after login |
Error: HTTP 409 Conflict when clicking "Mark as Complete"
insert or update on table "lesson_completions" violates foreign key constraint
"lesson_completions_user_id_fkey"
Key is not present in table "profiles".
The lesson_completions table has a foreign key to profiles.id, but:
- Test users created via
supabase.auth.admin.createUser() - The
handle_new_user()trigger that should create profiles was never set up - All 3 test users (student, teacher, admin) had no profile records
Created migration 20260131210806_create_missing_profiles.sql that backfills profiles for all users.
Before Fix:
- Progress: 0/3 lessons (0%)
- Error: HTTP 409 Conflict
- Button: "Start Course"
After Fix:
- Progress: 1/3 lessons (33%) ✅
- Response: HTTP 201 Created ✅
- Lesson 1: Shows "Completed" badge with checkmark ✅
- Button: Changed to "Continue Learning" ✅
- Auto-navigation to next lesson: ✅
Table created, RLS policies in place, needs manual testing.
Error: Column review_id does not exist (should be id)
Error: Column course_id doesn't exist (should use entity_id + entity_type = 'courses')
Fix Required: Update component query to match actual schema.
Needs manual testing with admin@test.com credentials.
20260130225216_fix_lesson_completion_rls.sql✅20260131170137_fix_lesson_completions_rls.sql✅20260131170225_create_comments_table.sql✅20260131170300_fix_reviews_schema.sql⚠️ Partial20260131170323_ensure_admin_user.sql✅20260131210806_create_missing_profiles.sql✅ Critical
| Password | Role | Status | |
|---|---|---|---|
| student@test.com | password123 | student | ✅ Active |
| teacher@test.com | password123 | teacher | ✅ Active |
| admin@test.com | password123 | admin | ✅ Active |
- ✅ COMPLETED: Fix lesson completion
- ❌ TODO: Fix reviews component query
- ⏳ TODO: Test comments system
- ⏳ TODO: Test admin dashboard
The lesson completion fix represents a major breakthrough. With profiles created and migrations applied, the platform is significantly more stable. Remaining issues are code-level fixes rather than database schema problems.