From f27201a3a61c800598f9530dd4a1844ae3033441 Mon Sep 17 00:00:00 2001
From: Automated Action <action@example.com>
Date: Sun, 11 May 2025 19:17:11 +0000
Subject: [PATCH] Update SQLite configuration for on-disk database storage
MIME-Version: 1.0
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- Add ClassVar type annotation for DB_DIR in config.py
- Add Base import in base.py for proper Alembic migrations
- Update README with detailed SQLite configuration information

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 README.md          | 9 ++++++++-
 app/core/config.py | 4 +++-
 app/db/base.py     | 1 +
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index c4cd594..79b7b5d 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ A Todo application backend built with Python, FastAPI, and SQLAlchemy.
 - **SQLAlchemy**: SQL toolkit and ORM
 - **Alembic**: Database migration tool
 - **Pydantic**: Data validation and settings management
-- **SQLite**: Lightweight disk-based database
+- **SQLite**: Lightweight disk-based database (stored in `/storage/db/db.sqlite`)
 - **Uvicorn**: ASGI server
 
 ## Project Structure
@@ -55,12 +55,19 @@ A Todo application backend built with Python, FastAPI, and SQLAlchemy.
    ```
    alembic upgrade head
    ```
+   This will create the SQLite database file at `/storage/db/db.sqlite`
 
 4. Start the server:
    ```
    uvicorn main:app --reload
    ```
 
+### Database Configuration
+
+The application uses SQLite as its database backend. The database file is stored at `/storage/db/db.sqlite`, outside the project root directory for better data isolation. The directory is automatically created if it doesn't exist.
+
+To change the database location, modify the `DB_DIR` variable in `app/core/config.py`.
+
 ### API Documentation
 
 Once the server is running, you can access:
diff --git a/app/core/config.py b/app/core/config.py
index 8498f41..ba3df35 100644
--- a/app/core/config.py
+++ b/app/core/config.py
@@ -1,4 +1,5 @@
 from pathlib import Path
+from typing import ClassVar
 from pydantic_settings import BaseSettings
 
 BASE_DIR = Path(__file__).resolve().parent.parent.parent
@@ -9,8 +10,9 @@ class Settings(BaseSettings):
     API_V1_STR: str = "/api/v1"
 
     # Database
-    DB_DIR = BASE_DIR.parent / "storage" / "db"
+    DB_DIR: ClassVar[Path] = BASE_DIR.parent / "storage" / "db"
     DB_DIR.mkdir(parents=True, exist_ok=True)
+
     SQLALCHEMY_DATABASE_URL: str = f"sqlite:///{DB_DIR}/db.sqlite"
 
 
diff --git a/app/db/base.py b/app/db/base.py
index 0ac23ab..3d325d8 100644
--- a/app/db/base.py
+++ b/app/db/base.py
@@ -1,2 +1,3 @@
 # Import all models here for Alembic to detect
+from app.db.session import Base
 from app.models.todo import Todo
\ No newline at end of file