mirror of
https://github.com/TronoSfera/backup_service.git
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37 lines
No EOL
1.1 KiB
Python
37 lines
No EOL
1.1 KiB
Python
"""Database configuration for the backup service.
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This module defines the SQLAlchemy engine and session factory used to access
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the relational database. The database URL can be configured via the
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``DATABASE_URL`` environment variable. When using SQLite the database will
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be stored on disk in the working directory. For production deployments a
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server like PostgreSQL should be used.
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"""
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from __future__ import annotations
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import os
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from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker, Session
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DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///./backup.db")
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# Determine whether to use check_same_thread for SQLite
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if DATABASE_URL.startswith("sqlite"):
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engine = create_engine(
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DATABASE_URL, connect_args={"check_same_thread": False}
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)
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else:
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engine = create_engine(DATABASE_URL)
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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def get_db() -> Session:
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"""Yield a new database session and ensure it is closed afterwards."""
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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() |