加入CND图片保存逻辑

db/message_storage.py

@@ -181,13 +181,13 @@ class MessageStorageDB(BaseDBOperator):
             'messages': messages
         }
 
-    def update_message_image_path(self, message_id, image_path):
+    def update_message_image_path(self, message_id, image_base64str):
         """
         更新消息的图片路径
         
         Args:
             message_id: 消息ID
-            image_path: 图片路径
+            image_base64str: 图片base64内容
             
         Returns:
             bool: 更新成功返回True，否则返回False
@@ -196,10 +196,10 @@ class MessageStorageDB(BaseDBOperator):
             # 构建SQL语句
             sql = """
             UPDATE messages 
-            SET image_path = %s 
+            SET message_thumb = %s 
             WHERE message_id = %s
             """
-            params = (image_path, message_id)
+            params = (image_base64str, message_id)
 
             # 执行更新操作
             result = self.execute_update(sql, params)