strat-gameplay-webapp/backend/app/database
Cal Corum 3c5055dbf6 CLAUDE: Implement polymorphic RosterLink for both PD and SBA leagues
Added league-agnostic roster tracking with single-table design:

Database Changes:
- Modified RosterLink model with surrogate primary key (id)
- Added nullable card_id (PD) and player_id (SBA) columns
- Added CHECK constraint ensuring exactly one ID populated (XOR logic)
- Added unique constraints for (game_id, card_id) and (game_id, player_id)
- Imported CheckConstraint and UniqueConstraint from SQLAlchemy

New Files:
- app/models/roster_models.py: Pydantic models for type safety
  - BaseRosterLinkData: Abstract base class
  - PdRosterLinkData: PD league card-based rosters
  - SbaRosterLinkData: SBA league player-based rosters
  - RosterLinkCreate: Request validation model

- tests/unit/models/test_roster_models.py: 24 unit tests (all passing)
  - Tests for PD/SBA roster link creation and validation
  - Tests for RosterLinkCreate XOR validation
  - Tests for polymorphic behavior

Database Operations:
- add_pd_roster_card(): Add PD card to game roster
- add_sba_roster_player(): Add SBA player to game roster
- get_pd_roster(): Get PD cards with optional team filter
- get_sba_roster(): Get SBA players with optional team filter
- remove_roster_entry(): Remove roster entry by ID

Tests:
- Added 12 integration tests for roster operations
- Fixed setup_database fixture scope (module → function)

Documentation:
- Updated backend/CLAUDE.md with RosterLink documentation
- Added usage examples and design rationale
- Updated Game model relationship description

Design Pattern:
Single table with application-layer type safety rather than SQLAlchemy
polymorphic inheritance. Simpler queries, database-enforced integrity,
and Pydantic type safety at application layer.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-22 22:45:44 -05:00
..
__init__.py CLAUDE: Complete Phase 1 backend infrastructure setup 2025-10-21 19:46:16 -05:00
operations.py CLAUDE: Implement polymorphic RosterLink for both PD and SBA leagues 2025-10-22 22:45:44 -05:00
session.py CLAUDE: Complete Phase 1 backend infrastructure setup 2025-10-21 19:46:16 -05:00