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breakpilot-pwa/backend/api/tests/database.py
BreakPilot Dev 19855efacc
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92 lines
2.4 KiB
Python

"""
Database Configuration fuer Test Registry.
PostgreSQL-Anbindung fuer persistente Test-Speicherung.
Ersetzt die bisherige JSON-basierte Speicherung.
"""
import os
from contextlib import contextmanager
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, Session, declarative_base
# Eigene Base fuer Test Registry - unabhaengig von anderen Modulen
# Dies vermeidet Import-Probleme in CI/CD Umgebungen
Base = declarative_base()
# Database URL from environment (nutzt gleiche DB wie Backend)
_raw_url = os.getenv(
"DATABASE_URL",
"postgresql://breakpilot:breakpilot123@postgres:5432/breakpilot_db"
)
# SQLAlchemy 2.0 erfordert "postgresql://" statt "postgres://"
DATABASE_URL = _raw_url.replace("postgres://", "postgresql://", 1) if _raw_url.startswith("postgres://") else _raw_url
# Engine configuration mit Connection Pool
engine = create_engine(
DATABASE_URL,
pool_pre_ping=True, # Prueft Connections vor Nutzung
pool_size=5, # Standard Pool-Groesse
max_overflow=10, # Zusaetzliche Connections bei Bedarf
pool_recycle=3600, # Recycle nach 1 Stunde
echo=os.getenv("SQL_ECHO", "false").lower() == "true"
)
# Session factory
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
def get_db():
"""
Database dependency for FastAPI endpoints.
Yields a database session and ensures cleanup.
"""
db = SessionLocal()
try:
yield db
finally:
db.close()
@contextmanager
def get_db_session():
"""
Context manager for database sessions.
Use this for background tasks and non-FastAPI code.
Example:
with get_db_session() as db:
db.query(TestRun).all()
"""
db = SessionLocal()
try:
yield db
db.commit()
except Exception:
db.rollback()
raise
finally:
db.close()
def init_db():
"""
Erstellt alle Tabellen.
In Produktion sollte Alembic verwendet werden.
"""
from . import db_models # Import models to register them
Base.metadata.create_all(bind=engine)
def check_db_connection() -> bool:
"""
Prueft ob die Datenbankverbindung funktioniert.
Nuetzlich fuer Health-Checks.
"""
try:
from sqlalchemy import text
with get_db_session() as db:
db.execute(text("SELECT 1"))
return True
except Exception:
return False