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TravelMathLite PRD Alignment Checklist — Completed with Notes

This document is a filled-in, travelmathlite-focused copy of LAYMAN_CHECKLIST_01.md, marked against the current repository state (travelmathlite/ app suite) and annotated with brief notes pointing to code, tests, and gaps/TODOs.

Legend

  • Completed and verified
  • Not yet completed or pending docs/tests

1. From Browser to Django (Introductory Context)

  • HTTP request/response flow — core/urls.py wires calculators/airports/search/accounts/trips to CBVs in apps/*/views.py, returning templates/partials.
  • Runserver demonstration — Not recorded; run uv run python manage.py runserver from travelmathlite/ to capture screenshots/asciinema.
  • Console inspection — core.middleware.RequestLoggingMiddleware emits JSON logs with request_id/duration; validated in core/tests/test_observability.py.
  • Code commentary — Views/models carry concise docstrings (e.g., apps/calculators/views.py, apps/airports/models.py).
  • Visual diagram (optional) — No request/response diagram checked in.

2. URLs Lead the Way

  • urls.py created — Namespaced app URLs under core/urls.py; app routes in apps/*/urls.py.
  • Namespace clarity — include(..., namespace=...) used for calculators, airports, search, accounts, trips, base.
  • URL naming discipline — All routes named and reversed in templates/tests (see apps/base/tests/test_namespaces.py, apps/calculators/tests.py).
  • Canonical link alignment — Canonical tags on search results (apps/search/templates/search/results.html); SEO endpoints sitemap.xml/robots.txt wired.
  • Test coverage (resolve/reverse) — URL reverse/resolve tests across apps (e.g., apps/airports/tests/tests_views.py, apps/search/tests/test_root.py).

3. Views on Views

  • Views defined — CBVs for calculators (FormView), airports (FormView/JSON), search (TemplateView), auth/trips (Template/List/Delete).
  • Proper rendering — Views return templates or HTMX partials with fallbacks for non-HTMX POSTs.
  • View docstrings — Present on custom middleware, models, and views for intent/context.
  • Error handling — Form validation and queryset scoping (e.g., SavedCalculationDeleteView filters by user) ensure 404/validation paths.
  • Unit tests — Extensive view/form tests in apps/calculators/tests, apps/airports/tests/tests_views.py, apps/search/tests/test_views.py.

4. Templates for User Interfaces

  • Templates configured — core/settings/base.py includes project templates/ and app directories.
  • Base template — templates/base.html with navbar/footer/includes; pages extend base and use Bootstrap 5 + HTMX pins.
  • Feature templates — Calculators, nearest airports, search results, auth, and trips render structured layouts with partials for HTMX swaps.
  • Template tags — Safe highlight filter (apps/search/templatetags/highlight.py) and sanitize filter (apps/base/templatetags/sanitize.py) used for user text.
  • Accessibility compliance — ARIA labels/focus scripting exist, but no formal a11y audit/contrast report checked in.

5. User Interaction with Forms

  • Forms created — Calculator and nearest-airport forms with custom validators (apps/calculators/forms.py, apps/airports/forms.py).
  • CSRF token — Present across templates.
  • Validation handled — Clean methods resolve city/IATA/latlon and enforce ranges/units.
  • Form lifecycle — GET shows form; POST/HTMX renders partial results; non-HTMX POST falls back to full template.
  • Persistence — Session helpers exist (core/session.py) but calculators do not yet persist last inputs for reuse.

6. Store Data with Models

  • Domain models — Country/City (normalized), Airport, Profile, SavedCalculation implemented with indexes and managers.
  • Migrations applied — Initial migrations under each app.
  • Admin entry — ModelAdmins for base/airports/trips with search/filter (apps/base/admin.py, apps/airports/admin.py, apps/trips/admin.py).
  • Model methods — No get_absolute_url() on public models (not needed yet).
  • ORM queries — Views rely on QuerySets (nearest search, search results) with tests covering CRUD (apps/airports/tests/tests_import.py, apps/trips/tests/test_saved_calculation.py).

7. Administer All the Things

  • Admin site enabled — core/urls.py: admin/; custom ModelAdmins registered.
  • Admin usage docs — Superuser creation and screenshots not documented.
  • Custom ModelAdmin — List/search/filter configs for Airport/Country/City/SavedCalculation; select_related in trips admin queryset.
  • Permissions model — No staff-only customization beyond defaults; calculators remain public.
  • Admin tests — See apps/airports/tests/test_admin.py, apps/base/tests/test_admin.py.

8. Anatomy of an Application

  • App layout — Conventional Django app structure under travelmathlite/apps/.
  • Settings modularization — core/settings/{base,local,prod}.py with env-driven config.
  • INSTALLED_APPS — Domain apps plus contrib apps declared in core/settings/base.py.
  • Static files pipeline — WhiteNoise middleware plus STATICFILES_DIRS; CSS overrides in static/css/.
  • README mapping — travelmathlite/README.md documents structure and quickstart.

9. User Authentication

  • Authentication system enabled — Django auth in INSTALLED_APPS/middleware.
  • Login/Logout views — RateLimitedLoginView + Logout wired; password reset routes configured.
  • User registration — SignupView uses UserCreationForm; templates under apps/accounts/templates/registration/.
  • Permissions — No role/permission gating beyond LoginRequired for saved calculations; calculators open to anonymous users.
  • Tests — Auth templates/rate limiting/profile upload covered (apps/accounts/tests/test_rate_limit.py, test_profile.py).

10. Middleware Do You Go?

  • Middleware stack reviewed — RequestID, RequestLogging, CacheHeader, WhiteNoise, security/auth stack in core/settings/base.py.
  • Custom middleware created — Request ID/timing and cache headers in core/middleware.py with tests in core/tests/test_observability.py.
  • Common middleware explained — Cache policies per ADR-1.0.10 applied to calculators/search.
  • Middleware ordering docs — No README narrative; GZip not enabled (rely on platform).
  • Tests — Caching and request logging verified (apps/calculators/test_caching.py, apps/search/tests/test_caching.py).

11. Serving Static Files

  • Static files configuration — STATIC_URL, STATICFILES_DIRS, optional ManifestStaticFilesStorage via env; WhiteNoise middleware active.
  • Template integration — {% load static %} and Bootstrap/HTMX pins in templates/includes/head.html.
  • Assets verified — CSS overrides and screenshots for calculators under travelmathlite/screenshots/calculators/.
  • Production strategy — CDN/cache headers not documented; STATIC_ROOT/collectstatic steps not recorded.
  • Tests — No static asset tests.

12. Test Your Apps

  • Test suite created — Django TestCase suites across calculators, airports, base, search, accounts, trips.
  • Model/view/form tests — Coverage for nearest lookup, calculators (HTMX), search pagination/highlight, auth rate limiting, saved calculations.
  • CI integration — .github/workflows/travelmathlite-tests.yml runs lint/format/check/migrations/tests on push/PR.
  • Coverage target — No coverage report; tests not rerun locally in this session.
  • CI scope — Workflow currently runs app subset (airports/base); full suite relies on local runs.

13. Deploy A Site Live

  • Production settings — core/settings/prod.py enforces SECRET_KEY/ALLOWED_HOSTS, secure cookies, HSTS, SSL redirect.
  • Deployment target — No platform/ALB/CDN docs or rollback plan.
  • Static/media serving — WhiteNoise ready, but CDN/collectstatic steps and monitoring not documented.
  • HTTPS enforcement — No cert/ingress setup captured; deploy checklist not run.

14. Per-visitor Data With Sessions

  • Session middleware — Enabled with default DB backend.
  • Session data usage — Calculator views do not persist last inputs; helpers in core/session.py unused by views.
  • Session binding — Login signal marks session user-bound (apps/accounts/signals.py); tests in apps/accounts/tests/test_session_migration.py.
  • Session security/cleanup — No clearsessions/rotation docs; secure flags rely on env defaults.

15. Making Sense Of Settings

  • Settings organization — base/local/prod split; django-environ for env parsing.
  • Environment-specific configs — DB/cache/settings driven by env vars; SECRET_KEY required in prod.
  • Logging configuration — Structured JSON logging with request_id/duration in core/logging.py.
  • Email backend — Not configured per environment; README lacks mail guidance.
  • Validation — No custom check hooks for settings; limited documentation of required env vars.

16. User File Use (Media Files)

  • Media configuration — MEDIA_URL/MEDIA_ROOT set; default FileSystemStorage.
  • File upload field — Profile avatar upload form/template (apps/accounts/forms.py, accounts/profile_form.html) with tests in test_profile.py.
  • Development serving — core/urls.py does not mount MEDIA_URL for DEBUG; needs doc or URL helper.
  • Production serving — No CDN/storage backend plan; file validation limited to accept=image/*.

17. Command Your App (Management Commands)

  • Custom management command — import_airports, update_airports, validate_airports with dry-run/limit/URL options.
  • Command structure — Uses BaseCommand with arguments; idempotent upsert and location linking (apps/airports/management/commands/import_airports.py).
  • Tests — Import/update/validate commands covered in apps/airports/tests/tests_import.py, tests_update_command.py, tests_validate_command.py.
  • Automation — Scheduling/cron docs not present.

18. Go Fast With Django (Performance)

  • Database query optimization — Bounding-box filters and haversine in AirportQuerySet.nearest; indexes on hot fields.
  • Caching implemented — @cache_page on calculators/search; CacheHeaderMiddleware sets cache-control; cache backend configurable via env.
  • Pagination — Search results paginated; saved calculations paginated.
  • Profiling — No Debug Toolbar/profiling tools; nearest JSON endpoint not cached.
  • Documentation — No performance benchmarks/notes.

19. Security And Django

  • Security settings enabled — Secure cookies, HSTS, SSL redirect, referrer/XFO headers in base/prod settings.
  • CSRF protection — Middleware active; forms include CSRF tokens.
  • Input sanitization — sanitize_html filter and highlight escaping; saved calculations sanitized in templates/tests.
  • CSP/rate limiting breadth — CSP not configured; rate limiting only on auth; dependency scanning not automated.
  • Deploy check — manage.py check --deploy not documented in CI/readme.

20. Debugging Tips And Techniques

  • Logging configured — Request logging with request_id/duration; JSON formatter; health endpoint.
  • Error pages — Custom 404/500 templates tested in core/tests/test_observability.py.
  • Error tracking toggle — Optional Sentry init guarded by env (core/sentry.py).
  • Tooling — No Debug Toolbar/VS Code launch configs or query logging guidance.
  • Reproduction docs — Debug how-to and bug reproduction steps not documented.

21. Validation with PRD Alignment

  • FR coverage — Calculators, nearest lookup, search, auth, and saved-calculation scaffolding align with PRD §4; ADRs under docs/travelmathlite/adr/.
  • Traceability — No matrix mapping PRD → ADR → tests/files; acceptance tracked loosely in feature checklist.
  • NFRs — Accessibility/performance/security documentation partial; no lint/coverage badges.

22. Deliverables

  • CHECKLIST_COMPLETION.md — This file (travelmathlite edition).
  • Screenshots/asciinema — Calculator screenshots in travelmathlite/screenshots/calculators/.
  • Summary table (PRD → ADR → Tests) — Not yet created.
  • Additional media — Search/nearest/auth flows and deployment evidence not captured.

Notes and pointers

  • Caching and observability

    • Cache directives for calculators/search via @cache_page and CacheHeaderMiddleware; cache backend/env toggles in core/settings/base.py.
    • Request ID + structured logging in core/middleware.py and core/logging.py; tested in core/tests/test_observability.py.
    • Health endpoint returns status (and optional commit SHA) at /health/.

  • Data/imports

    • OurAirports import pipeline with location linking in apps/airports/management/commands/import_airports.py; dry-run and limit flags covered by tests.
    • Normalized Country/City models (apps/base/models.py) back Airport foreign keys; search uses select_related for pagination efficiency.

  • Auth/trips

    • Auth views/templates live under apps/accounts/; login rate limiting toggled via env in RateLimitMixin.
    • SavedCalculation list/delete flows and sanitization are implemented, but calculators do not yet persist submissions into SavedCalculation or sessions. Action item: hook calculators to core/session.py helpers and persist to trips when logged in.

  • Quick wins (low risk)

    • Add MEDIA_URL serving in DEBUG, plus storage/CDN note for prod.
    • Add deployment/runbook steps (collectstatic, ALLOWED_HOSTS, certs, rollback) and map PRD → ADR → tests.
    • Enable full test matrix in CI (accounts/calculators/search/trips) and add coverage badge/report.