feat(schedule): implement full GTFS export module with deterministic validation #7#8
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feat(schedule): implement full GTFS export module with deterministic validation #7#8
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Implements core GTFS Schedule entities (agency, routes, trips, stops, stop_times, shapes, calendar, calendar_dates, feed_info) with ForeignKeys and UniqueConstraints as specified in GTFS v2.0. Migrations were created and applied successfully under PostGIS backend. Closes #3.
…CPKs per academic guidance Implements deterministic CRUD test coverage for the GTFS Schedule module, ensuring referential integrity across AgencySchedule, CalendarSchedule, and ShapeSchedule. Composite Primary Keys (CPKs) were intentionally not implemented, per academic guidance from course instructor, to maintain compatibility with Django ORM and simplify admin integration.
…gration #5 Adds management command `create_schedule_fixtures` to generate a minimal, deterministic GTFS Schedule dataset. Includes --seed and --output options, produces a tiny, loaddata-friendly JSON, and is exercised by a pytest test. - Shapes PKs are numeric to align with Django's AutoField/BigAutoField. - Tests run without PostGIS by using the non-GIS test settings. - Validated end-to-end via `pytest -v tests/test_fixtures.py`.
#6 Implements complete GTFS Schedule import pipeline supporting all 9 core files: agency, routes, stops, trips, calendar, calendar_dates, stop_times, shapes, and feed_info. Validates referential integrity across related models and performs bulk inserts under a single transaction. Includes integration test (test_import_full_gtfs.py) generating synthetic GTFS ZIP in tmp_gtfs/ to verify end-to-end ingestion.
…validation #7 Implements export_gtfs_schedule() to serialize all Schedule models into GTFS v2.0-compliant text files and ZIP package. Includes deterministic validation with synthetic data and metadata embedding. MBTA feed import/export remains experimental due to dataset size.
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Description
export_gtfs_schedule()for full GTFS Schedule export to a valid ZIP archive.Agency,Routes,Stops,Trips,StopTimes,Calendar,CalendarDates,Shapes,FeedInfo).feed_info.txtduring export.Changes
gtfs/management/commands/exportgtfs.pyexport_gtfs_schedule()ingtfs/utils/schedule.pyCHANGELOG.mdwith # feat(schedule): implement full GTFS import pipeline for Schedule module #6 #7 detailsscripts/download_mbta_gtfs.pyfor external testingSubissue
Checklist
pytest.tmp_gtfs/exported_feed.zip).