CRUDKit update.

crudkit/integrations/fastapi.py

@@ -0,0 +1,24 @@
+from __future__ import annotations
+from contextlib import contextmanager
+from fastapi import Depends
+from sqlalchemy.orm import Session
+from ..engines import CRUDKitRuntime
+
+_runtime = CRUDKitRuntime()
+
+@contextmanager
+def _session_scope():
+    SessionLocal = _runtime.session_factory
+    session: Session = SessionLocal()
+    try:
+        yield session
+        session.commit()
+    except Exception:
+        session.rollback()
+        raise
+    finally:
+        session.close()
+
+def get_db():
+    with _session_scope() as s:
+        yield s

crudkit/integrations/flask.py

@@ -0,0 +1,20 @@
+from __future__ import annotations
+from flask import Flask
+from sqlalchemy.orm import scoped_session
+from ..engines import CRUDKitRuntime
+from ..config import Config
+
+def init_app(app: Flask, *, runtime: CRUDKitRuntime | None = None, config: type[Config] | None == None):
+    """
+    Initializes CRUDKit for a Flask app. Provies `app.extensions['crudkit']`
+    with a runtime (engine + session_factory). Caller manages session lifecycle.
+    """
+    runtime = runtime or CRUDKitRuntime(config=config)
+    app.extensions.setdefault("crudkit", {})
+    app.extensions["crudkit"]["runtime"] = runtime
+
+    Session = runtime.session_factory
+    if Session is not None:
+        app.extensions["crudkit"]["Session"] = scoped_session(Session)
+
+    return runtime