moai/.planning/phases/01-foundation/01-03-SUMMARY.md

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	issues-created	duration	completed
01-foundation	03	database	sqlalchemy async aiosqlite pytest testing	phase provides 01-foundation/01-02 SQLAlchemy models (Project, Discussion, Round, Message, Consensus)	Async database session management (init_db, create_tables, get_session, close_db) In-memory database testing pattern Model test coverage (5 tests)	02-bot-core 03-discussion-engine	added patterns sqlalchemy.ext.asyncio aiosqlite async context manager for sessions in-memory SQLite for tests	created src/moai/core/database.py tests/test_models.py	Session auto-commits on context exit, rollback on exception Module-level globals for engine/session factory (simple singleton pattern) expire_on_commit=False for async session usability	Database fixture pattern: init_db with in-memory URL, create_tables, yield session, close_db Relationship testing via refresh() for lazy-loaded collections		4min	2026-01-16

Phase 01-03: Database & Tests Summary

Async SQLAlchemy session management with in-memory test fixture and 5 model tests at 95% coverage

Performance

• Duration: 4 min
• Started: 2026-01-16T15:13:19Z
• Completed: 2026-01-16T15:17:06Z
• Tasks: 3 (2 with commits, 1 verification-only)
• Files modified: 2

Accomplishments

• Created database.py with async session factory and context manager
• Implemented 5 comprehensive model tests covering creation, relationships, and cascades
• Achieved 95% code coverage on core module

Task Commits

Each task was committed atomically:

1. Task 1: Create database module - bb932e6 (feat)
2. Task 2: Create model tests - fb81fea (test)
3. Task 3: Verify gitignore and test suite - No commit needed (entries already present)

Files Created/Modified

• src/moai/core/database.py - Async session management with init_db, create_tables, get_session, close_db
• tests/test_models.py - 5 tests: create_project, create_discussion_with_project, create_full_discussion_chain, create_consensus, project_cascade_delete

Decisions Made

• Used expire_on_commit=False in session factory to allow attribute access after commit without re-query
• Session context manager handles commit/rollback automatically
• Module-level globals for engine/factory simplifies dependency injection for this Phase 1 scope

Deviations from Plan

None - plan executed exactly as written.

Note: Task 3 required no commit because .gitignore already contained all specified entries from a previous setup phase.

Issues Encountered

None

Test Results

tests/test_models.py::test_create_project PASSED
tests/test_models.py::test_create_discussion_with_project PASSED
tests/test_models.py::test_create_full_discussion_chain PASSED
tests/test_models.py::test_create_consensus PASSED
tests/test_models.py::test_project_cascade_delete PASSED

Coverage: 95% (101 statements, 5 missing)
Missing: error handling paths in database.py (lines 62, 85, 91-93)

Next Phase Readiness

• Foundation phase complete: scaffolding, models, database all working
• Ready for Phase 2: Bot Core (handlers, middleware, bot setup)
• All core infrastructure tested and operational

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Phase: 01-foundation Completed: 2026-01-16