backend/trading_journal/db.py

@@ -5,12 +5,13 @@ from typing import TYPE_CHECKING
 
 from sqlalchemy import event
 from sqlalchemy.pool import StaticPool
-from sqlmodel import Session, SQLModel, create_engine
+from sqlmodel import Session, create_engine
+
+import trading_journal.db_migration
 
 if TYPE_CHECKING:
     from collections.abc import Generator
-
-    from sqlalchemy.engine import Connection
+    from sqlite3 import Connection as DBAPIConnection
 
 
 class Database:
@@ -29,11 +30,9 @@ class Database:
 
         if self._database_url.startswith("sqlite"):
 
-            def _enable_sqlite_pragmas(dbapi_conn: Connection, _connection_record: object) -> None:
+            def _enable_sqlite_pragmas(dbapi_conn: DBAPIConnection, _connection_record: object) -> None:
                 try:
                     cur = dbapi_conn.cursor()
-                    cur.execute("PRAGMA journal_mode=WAL;")
-                    cur.execute("PRAGMA synchronous=NORMAL;")
                     cur.execute("PRAGMA foreign_keys=ON;")
                     cur.execute("PRAGMA busy_timeout=30000;")
                     cur.close()

backend/trading_journal/db_migration.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 from typing import Callable
 
 from sqlalchemy import text
-from sqlalchemy.engine import Engine
+from sqlalchemy.engine import Connection, Engine
 from sqlmodel import SQLModel
 
 # 最新 schema 版本号
@@ -26,7 +26,7 @@ MIGRATIONS: dict[int, Callable[[Engine], None]] = {
 }
 
 
-def _get_sqlite_user_version(conn) -> int:
+def _get_sqlite_user_version(conn: Connection) -> int:
     row = conn.execute(text("PRAGMA user_version")).fetchone()
     return int(row[0]) if row and row[0] is not None else 0
 

backend/trading_journal/models.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 from datetime import date, datetime  # noqa: TC003
 from enum import Enum
+from typing import TYPE_CHECKING
 
 from sqlmodel import Column, DateTime, Field, Relationship, SQLModel
 from sqlmodel import Enum as SQLEnum