feat: 初始化考培练系统项目

- 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
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"""
站内消息通知模型
用于记录用户的站内消息通知
"""
from datetime import datetime
from typing import Optional
from sqlalchemy import String, Text, Integer, Boolean, Index, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.models.base import BaseModel
class Notification(BaseModel):
"""
站内消息通知模型
用于存储发送给用户的各类站内通知消息,如:
- 岗位分配通知
- 课程分配通知
- 考试提醒通知
- 系统公告通知
"""
__tablename__ = "notifications"
# 接收用户ID外键关联到users表
user_id: Mapped[int] = mapped_column(
Integer,
ForeignKey("users.id", ondelete="CASCADE"),
nullable=False,
index=True,
comment="接收用户ID"
)
# 通知标题
title: Mapped[str] = mapped_column(
String(200),
nullable=False,
comment="通知标题"
)
# 通知内容
content: Mapped[Optional[str]] = mapped_column(
Text,
nullable=True,
comment="通知内容"
)
# 通知类型
# position_assign: 岗位分配
# course_assign: 课程分配
# exam_remind: 考试提醒
# task_assign: 任务分配
# system: 系统通知
type: Mapped[str] = mapped_column(
String(50),
nullable=False,
default="system",
index=True,
comment="通知类型position_assign/course_assign/exam_remind/task_assign/system"
)
# 是否已读
is_read: Mapped[bool] = mapped_column(
Boolean,
default=False,
nullable=False,
index=True,
comment="是否已读"
)
# 关联数据ID可选如岗位ID、课程ID等
related_id: Mapped[Optional[int]] = mapped_column(
Integer,
nullable=True,
comment="关联数据ID岗位ID/课程ID等"
)
# 关联数据类型可选如position、course等
related_type: Mapped[Optional[str]] = mapped_column(
String(50),
nullable=True,
comment="关联数据类型"
)
# 发送者ID可选系统通知时为空
sender_id: Mapped[Optional[int]] = mapped_column(
Integer,
ForeignKey("users.id", ondelete="SET NULL"),
nullable=True,
comment="发送者用户ID"
)
# 关联关系
user = relationship("User", foreign_keys=[user_id], backref="notifications")
sender = relationship("User", foreign_keys=[sender_id])
# 创建索引以优化查询性能
__table_args__ = (
Index('idx_notifications_user_read', 'user_id', 'is_read'),
Index('idx_notifications_user_created', 'user_id', 'created_at'),
Index('idx_notifications_type', 'type'),
)
def __repr__(self):
return f"<Notification(id={self.id}, user_id={self.user_id}, title={self.title}, is_read={self.is_read})>"