gravl/.planning/phases/02-flexible-sets/02-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	duration	completed
02-flexible-sets	02	api	express postgres react fetch delete workout-logs	phase plan provides 02-flexible-sets 01 ExerciseCard with handleDeleteSet calling optional onDeleteSet prop (stub — wired here)	DELETE /api/logs endpoint in backend/src/index.js deleteLog function in App.jsx calling DELETE /api/logs onDeleteSet prop wired from App.jsx -> WorkoutPage -> ExerciseCard	03-custom-workouts backend-logging	added patterns DELETE endpoint with composite key (user_id program_exercise_id date set_number) optimistic local state removal mirrors DB delete	created modified backend/src/index.js frontend/src/App.jsx frontend/src/pages/WorkoutPage.jsx	No authMiddleware on DELETE /api/logs — consistent with existing POST /api/logs which also passes user_id in body deleteLog silently ignores 404 responses — backend handles non-existent row gracefully (unlogged sets deleted mid-session) Local logs state updated optimistically after DELETE regardless of 404 — ensures UI stays consistent even for never-logged sets	Composite-key delete: (user_id, program_exercise_id, date, set_number) is the unique identifier for a workout set log row Prop threading: deleteLog lives in App.jsx, flows as onDeleteSet -> WorkoutPage -> ExerciseCard without intermediate handlers	2min	2026-02-21

Phase 2 Plan 02: Flexible Sets — Backend DELETE Endpoint and Frontend Wiring Summary

DELETE /api/logs endpoint deletes workout_logs rows by composite key; deleteLog in App.jsx propagates through WorkoutPage to ExerciseCard, removing orphaned set rows from DB when user deletes a set

Performance

• Duration: ~2 min
• Started: 2026-02-21T17:44:02Z
• Completed: 2026-02-21T17:45:45Z
• Tasks: 2
• Files modified: 3

Accomplishments

• Backend DELETE /api/logs endpoint: deletes matching workout_logs row by composite key (user_id, program_exercise_id, date, set_number), returns 200+id on success, 404 if not found
• deleteLog async function added to App.jsx alongside logSet: sends DELETE fetch, removes entry from local logs state on success
• Full prop chain wired: App.jsx onDeleteSet={deleteLog} -> WorkoutPage signature updated to accept onDeleteSet -> ExerciseCard receives onDeleteSet prop (was already calling it if provided from plan 01)
• Frontend build passes cleanly after changes

Task Commits

Each task was committed atomically:

1. Task 1: Add DELETE /api/logs endpoint to backend - f9eb6cc (feat)
2. Task 2: Wire deleteLog through App.jsx and WorkoutPage to ExerciseCard - 175434f (feat)

Plan metadata: committed with docs commit (docs)

Files Created/Modified

• backend/src/index.js - Added DELETE /api/logs route (21 lines) after POST /api/logs, same composite key pattern
• frontend/src/App.jsx - Added deleteLog function (20 lines), added onDeleteSet={deleteLog} prop to WorkoutPage render
• frontend/src/pages/WorkoutPage.jsx - Updated function signature to accept onDeleteSet, passed onDeleteSet to each ExerciseCard

Decisions Made

• No auth on DELETE /api/logs: POST /api/logs has no authMiddleware — DELETE matches that pattern for consistency; user_id from body provides identity
• Silent 404 handling: If a set was never logged (user added then immediately deleted without completing), the DELETE returns 404. deleteLog catches silently — the row never existed, no cleanup needed
• Optimistic state update: Local logs state is always updated (filter out the set_number) regardless of whether the DELETE returned 200 or 404, since in both cases the set should not appear in the UI

Deviations from Plan

None — plan executed exactly as written.

Issues Encountered

None — build passed cleanly after both tasks. Backend syntax verified with node --check.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Phase 2 (Flexible Sets) is now complete: ExerciseCard supports dynamic set lists (plan 01), and deleting a logged set removes it from the database (plan 02)
• Ghost sets can no longer reappear after page reload — deleted sets are removed from both frontend state and backend DB
• Phase 3 (Custom Workouts) requires new DB tables (custom_workouts, custom_workout_exercises) and a source_type column on workout_logs — schema migration needed before Phase 3 planning

Self-Check: PASSED

• backend/src/index.js: FOUND
• frontend/src/App.jsx: FOUND
• frontend/src/pages/WorkoutPage.jsx: FOUND
• 02-02-SUMMARY.md: FOUND
• Commit f9eb6cc (Task 1): FOUND
• Commit 175434f (Task 2): FOUND
• DELETE /api/logs in backend: FOUND
• deleteLog in App.jsx: FOUND
• onDeleteSet prop wired through WorkoutPage: FOUND

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Phase: 02-flexible-sets Completed: 2026-02-21