998211c483
- 从服务器拉取完整代码 - 按框架规范整理项目结构 - 配置 Drone CI 测试环境部署 - 包含后端(FastAPI)、前端(Vue3)、管理端 技术栈: Vue3 + TypeScript + FastAPI + MySQL
171 lines
4.6 KiB
Python
171 lines
4.6 KiB
Python
"""
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系统日志服务
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"""
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import logging
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from typing import Optional
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from datetime import datetime
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from sqlalchemy import select, func, or_
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.models.system_log import SystemLog
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from app.schemas.system_log import SystemLogCreate, SystemLogQuery
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logger = logging.getLogger(__name__)
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class SystemLogService:
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"""系统日志服务类"""
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async def create_log(
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self,
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db: AsyncSession,
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log_data: SystemLogCreate
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) -> SystemLog:
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"""
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创建系统日志
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Args:
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db: 数据库会话
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log_data: 日志数据
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Returns:
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创建的日志对象
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"""
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try:
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log = SystemLog(**log_data.model_dump())
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db.add(log)
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await db.commit()
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await db.refresh(log)
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return log
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except Exception as e:
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await db.rollback()
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logger.error(f"创建系统日志失败: {str(e)}")
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raise
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async def get_logs(
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self,
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db: AsyncSession,
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query_params: SystemLogQuery
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) -> tuple[list[SystemLog], int]:
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"""
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查询系统日志列表
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Args:
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db: 数据库会话
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query_params: 查询参数
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Returns:
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(日志列表, 总数)
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"""
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try:
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# 构建基础查询
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stmt = select(SystemLog)
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count_stmt = select(func.count(SystemLog.id))
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# 应用筛选条件
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filters = []
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if query_params.level:
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filters.append(SystemLog.level == query_params.level)
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if query_params.type:
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filters.append(SystemLog.type == query_params.type)
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if query_params.user:
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filters.append(SystemLog.user == query_params.user)
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if query_params.keyword:
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filters.append(SystemLog.message.like(f"%{query_params.keyword}%"))
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if query_params.start_date:
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filters.append(SystemLog.created_at >= query_params.start_date)
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if query_params.end_date:
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filters.append(SystemLog.created_at <= query_params.end_date)
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# 应用所有筛选条件
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if filters:
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stmt = stmt.where(*filters)
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count_stmt = count_stmt.where(*filters)
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# 获取总数
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result = await db.execute(count_stmt)
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total = result.scalar_one()
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# 应用排序和分页
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stmt = stmt.order_by(SystemLog.created_at.desc())
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stmt = stmt.offset((query_params.page - 1) * query_params.page_size)
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stmt = stmt.limit(query_params.page_size)
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# 执行查询
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result = await db.execute(stmt)
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logs = result.scalars().all()
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return list(logs), total
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except Exception as e:
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logger.error(f"查询系统日志失败: {str(e)}")
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raise
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async def get_log_by_id(
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self,
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db: AsyncSession,
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log_id: int
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) -> Optional[SystemLog]:
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"""
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根据ID获取日志详情
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Args:
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db: 数据库会话
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log_id: 日志ID
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Returns:
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日志对象或None
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"""
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try:
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stmt = select(SystemLog).where(SystemLog.id == log_id)
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result = await db.execute(stmt)
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return result.scalar_one_or_none()
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except Exception as e:
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logger.error(f"获取日志详情失败: {str(e)}")
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raise
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async def delete_logs_before_date(
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self,
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db: AsyncSession,
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before_date: datetime
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) -> int:
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"""
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删除指定日期之前的日志（用于日志清理）
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Args:
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db: 数据库会话
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before_date: 截止日期
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Returns:
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删除的日志数量
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"""
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try:
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stmt = select(SystemLog).where(SystemLog.created_at < before_date)
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result = await db.execute(stmt)
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logs = result.scalars().all()
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count = len(logs)
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for log in logs:
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await db.delete(log)
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await db.commit()
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logger.info(f"已删除 {count} 条日志记录")
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return count
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except Exception as e:
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await db.rollback()
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logger.error(f"删除日志失败: {str(e)}")
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raise
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# 创建全局服务实例
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system_log_service = SystemLogService()
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