11

core/sqlite.py

@@ -22,12 +22,16 @@ class AsyncSQLiteDB:
         await self.close()
 
     async def connect(self):
+        if self.conn is not None:
+            return
         self.conn = await aiosqlite.connect(self.db_path)
         self.conn.row_factory = aiosqlite.Row
 
     async def close(self):
-        if self.conn:
-            await self.conn.close()
+        connection = self.conn
+        self.conn = None
+        if connection:
+            await connection.close()
 
     # ======================
     # 基础执行