docs

ontology_platform/ont_platform/api/db_deps.py

@@ -1,11 +1,13 @@
 """Database dependencies for FastAPI."""
 
-from typing import Generator
+from collections.abc import Generator
+from pathlib import Path
 
 from sqlalchemy import create_engine
 from sqlalchemy.orm import Session, sessionmaker
 
 from ont_platform.config import load_settings
+from ont_platform.storage.models import Base
 
 # Initialize database engine (lazy singleton)
 _engine = None
@@ -18,12 +20,14 @@ def get_db_engine():
     if _engine is None:
         settings = load_settings()
         database_url = settings.database_url
+        _ensure_sqlite_parent(database_url)
         _engine = create_engine(
             database_url,
             connect_args={"timeout": 30} if "sqlite" in database_url else {},
             pool_pre_ping=True,
             echo=False,
         )
+        Base.metadata.create_all(bind=_engine)
     return _engine
 
 
@@ -46,4 +50,13 @@ def get_db() -> Generator[Session, None, None]:
         db.close()
 
 
+def _ensure_sqlite_parent(database_url: str) -> None:
+    if not database_url.startswith("sqlite:///"):
+        return
+    db_path = database_url.removeprefix("sqlite:///")
+    if db_path in {":memory:", ""}:
+        return
+    Path(db_path).expanduser().parent.mkdir(parents=True, exist_ok=True)
+
+
 __all__ = ["get_db", "get_db_engine", "get_session_factory"]