Initial curated Unraid-AppOps-Gateway source from 3bd6f6fee310125bfbb4d4650389a817f498724d

backend/app/db/session.py

@@ -0,0 +1,44 @@
+from pathlib import Path
+
+from sqlalchemy import event
+from sqlalchemy.engine import Engine
+from sqlmodel import create_engine, Session
+
+from ..core.config import settings
+
+
+def _configure_sqlite_connection(dbapi_connection, _connection_record) -> None:
+    cursor = dbapi_connection.cursor()
+    try:
+        cursor.execute("PRAGMA busy_timeout=30000")
+        cursor.execute("PRAGMA journal_mode=WAL")
+        cursor.execute("PRAGMA synchronous=NORMAL")
+    finally:
+        cursor.close()
+
+
+def create_app_engine(db_path: Path | str) -> Engine:
+    resolved_path = Path(db_path)
+    if resolved_path.parent != Path('.'):
+        resolved_path.parent.mkdir(parents=True, exist_ok=True)
+
+    app_engine = create_engine(
+        f"sqlite:///{resolved_path}",
+        echo=False,
+        connect_args={"check_same_thread": False, "timeout": 30},
+        pool_size=20,
+        max_overflow=20,
+        pool_timeout=10,
+    )
+    event.listen(app_engine, "connect", _configure_sqlite_connection)
+    return app_engine
+
+
+_db_path = Path(settings.db_path)
+DATABASE_URL = f"sqlite:///{_db_path}"
+engine = create_app_engine(_db_path)
+
+
+def get_session():
+    with Session(engine) as session:
+        yield session