44 lines
1.8 KiB
Python
44 lines
1.8 KiB
Python
from common.msg_db_helper import DBHelper
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from PySide6.QtCore import QMutex
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"""
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消息管理器： 系统状态消息 和 预警消息
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"""
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class MessageRecorder:
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_instance = None # 单例模式
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_mutex = QMutex()
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def __new__(cls):
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cls._mutex.lock()
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try:
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if not cls._instance:
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cls._instance = super().__new__(cls)
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cls._instance.db = DBHelper()
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finally:
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cls._mutex.unlock()
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return cls._instance
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def normal_record(self, content, is_processed=0):
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"""记录系统状态消息"""
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self.db.insert_message(content, message_type=1, is_processed=is_processed)
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def warning_record(self, content, is_processed=0):
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"""记录预警消息"""
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self.db.insert_message(content, message_type=2, is_processed=is_processed)
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def update_warning_status(self, content, is_processed=1):
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"""更新预警消息的处理状态: is_processed为1表示已经处理, 字体变为灰色"""
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self.db.update_processed_status(content, message_type=2, is_processed=is_processed)
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def update_normal_status(self, content, is_processed=1):
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"""更新系统消息的处理状态: is_processed为1表示已经处理, 字体变为灰色"""
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self.db.update_processed_status(content, message_type=1, is_processed=is_processed)
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def get_latest_normal_messages(self, limit=16):
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"""获取最新的系统状态消息(message_type=1), limit为获取的消息的条数, 默认16条"""
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return self.db.get_latest_messages(message_type=1, limit=limit)
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def get_latest_warning_messages(self, limit=16):
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"""获取最新的预警消息(message_type=2), limit为获取的消息的条数, 默认16条"""
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return self.db.get_latest_messages(message_type=2, limit=limit) |