cf1739b7f8
Phase 3 - "The Island" transformation: - Add SQLAlchemy + SQLite for data persistence (database.py) - Rewrite models.py with User, Agent, WorldState ORM models - Refactor engine.py for survival mechanics (energy decay, starvation) - Implement feed command (10 gold -> +20 energy) - Auto-seed 3 NPCs on startup (Jack/Luna/Bob) - Update frontend with agent card view and Chinese UI - Remove old Boss/Player RPG mechanics - Add .gitignore for database and cache files - Fix SQLAlchemy session detachment issue 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
62 lines
1.3 KiB
Python
62 lines
1.3 KiB
Python
"""
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Database configuration for The Island.
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SQLite + SQLAlchemy ORM setup.
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"""
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from pathlib import Path
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from contextlib import contextmanager
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from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker, declarative_base
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# Database file path (in project root)
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DB_PATH = Path(__file__).parent.parent.parent / "island.db"
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DATABASE_URL = f"sqlite:///{DB_PATH}"
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# Create engine with SQLite optimizations
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engine = create_engine(
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DATABASE_URL,
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connect_args={"check_same_thread": False}, # Required for SQLite with FastAPI
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echo=False # Set True for SQL debugging
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)
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# Session factory
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# Base class for ORM models
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Base = declarative_base()
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def init_db():
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"""Initialize database tables."""
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Base.metadata.create_all(bind=engine)
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def get_db():
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"""
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Dependency for getting database session.
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Use with FastAPI's Depends() or as context manager.
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"""
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close()
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@contextmanager
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def get_db_session():
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"""
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Context manager for database session.
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Usage: with get_db_session() as db: ...
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"""
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db = SessionLocal()
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try:
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yield db
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db.commit()
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except Exception:
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db.rollback()
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raise
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finally:
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db.close()
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