5a31f52310
Services: Admin-Lehrer, Backend-Lehrer, Studio v2, Website, Klausur-Service, School-Service, Voice-Service, Geo-Service, BreakPilot Drive, Agent-Core Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
"""
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Database Configuration fuer Classroom Engine.
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Stellt PostgreSQL-Anbindung fuer Session-Persistenz bereit.
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Sessions ueberleben Server-Neustarts (Feature f22).
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"""
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import os
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from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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# Database URL from environment (nutzt gleiche DB wie Backend)
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# Korrigiert postgres:// zu postgresql:// fuer SQLAlchemy 2.0 Kompatibilitaet
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_raw_url = os.getenv(
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"DATABASE_URL",
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"postgresql://breakpilot:breakpilot123@localhost:5432/breakpilot"
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)
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# SQLAlchemy 2.0 erfordert "postgresql://" statt "postgres://"
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DATABASE_URL = _raw_url.replace("postgres://", "postgresql://", 1) if _raw_url.startswith("postgres://") else _raw_url
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# Engine configuration
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engine = create_engine(
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DATABASE_URL,
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pool_pre_ping=True,
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pool_size=5,
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max_overflow=10,
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echo=os.getenv("SQL_ECHO", "false").lower() == "true"
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)
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# Declarative Base
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Base = declarative_base()
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# Session factory
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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def get_db():
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"""Database dependency for FastAPI endpoints."""
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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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def init_db():
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"""Erstellt alle Tabellen (fuer Entwicklung)."""
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from . import db_models # Import models to register them
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Base.metadata.create_all(bind=engine)
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