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								service/device_danger_service.py
									
									
									
									
									
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							| @ -0,0 +1,78 @@ | ||||
| from mysql.connector import Error as MySQLError | ||||
|  | ||||
| from ds.db import db | ||||
| from schema.device_danger_schema import DeviceDangerCreateRequest, DeviceDangerResponse | ||||
|  | ||||
|  | ||||
| # ------------------------------ | ||||
| # 内部工具方法 - 检查设备是否存在(复用设备表逻辑) | ||||
| # ------------------------------ | ||||
| def check_device_exist(client_ip: str) -> bool: | ||||
|     """ | ||||
|     检查指定IP的设备是否在devices表中存在 | ||||
|  | ||||
|     :param client_ip: 设备IP地址 | ||||
|     :return: 存在返回True、不存在返回False | ||||
|     """ | ||||
|     if not client_ip: | ||||
|         raise ValueError("设备IP不能为空") | ||||
|  | ||||
|     conn = None | ||||
|     cursor = None | ||||
|     try: | ||||
|         conn = db.get_connection() | ||||
|         cursor = conn.cursor(dictionary=True) | ||||
|  | ||||
|         cursor.execute("SELECT id FROM devices WHERE client_ip = %s", (client_ip,)) | ||||
|         return cursor.fetchone() is not None | ||||
|     except MySQLError as e: | ||||
|         raise Exception(f"检查设备存在性失败: {str(e)}") from e | ||||
|     finally: | ||||
|         db.close_connection(conn, cursor) | ||||
|  | ||||
|  | ||||
| # ------------------------------ | ||||
| # 内部工具方法 - 创建设备危险记录(核心插入逻辑) | ||||
| # ------------------------------ | ||||
| def create_danger_record(danger_data: DeviceDangerCreateRequest) -> DeviceDangerResponse: | ||||
|     """ | ||||
|     内部工具方法:向device_danger表插入新的危险记录 | ||||
|  | ||||
|     :param danger_data: 危险记录创建请求数据 | ||||
|     :return: 创建成功的危险记录模型对象 | ||||
|     """ | ||||
|     # 先检查设备是否存在 | ||||
|     if not check_device_exist(danger_data.client_ip): | ||||
|         raise ValueError(f"IP为 {danger_data.client_ip} 的设备不存在、无法创建危险记录") | ||||
|  | ||||
|     conn = None | ||||
|     cursor = None | ||||
|     try: | ||||
|         conn = db.get_connection() | ||||
|         cursor = conn.cursor(dictionary=True) | ||||
|  | ||||
|         # 插入危险记录(id自增、时间自动填充) | ||||
|         insert_query = """ | ||||
|             INSERT INTO device_danger  | ||||
|             (client_ip, type, result, created_at, updated_at) | ||||
|             VALUES (%s, %s, %s, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP) | ||||
|         """ | ||||
|         cursor.execute(insert_query, ( | ||||
|             danger_data.client_ip, | ||||
|             danger_data.type, | ||||
|             danger_data.result | ||||
|         )) | ||||
|         conn.commit() | ||||
|  | ||||
|         # 获取刚创建的记录(用自增ID查询) | ||||
|         danger_id = cursor.lastrowid | ||||
|         cursor.execute("SELECT * FROM device_danger WHERE id = %s", (danger_id,)) | ||||
|         new_danger = cursor.fetchone() | ||||
|  | ||||
|         return DeviceDangerResponse(**new_danger) | ||||
|     except MySQLError as e: | ||||
|         if conn: | ||||
|             conn.rollback() | ||||
|         raise Exception(f"插入危险记录失败: {str(e)}") from e | ||||
|     finally: | ||||
|         db.close_connection(conn, cursor) | ||||
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