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ClassHelper/packages/server/prisma/schema.prisma
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// 班级小助手 - 数据模型
//
// 设计说明:
// 1) 本 schema 使用 sqlite provider(本地 MVP / 离线开发)。
// 字段全部使用 String / Int / Float / Boolean / DateTime 等跨库通用类型,
// 不使用 Prisma enum 与 @db.* 原生类型,因此可平移到 MySQL。
// MySQL 复用这一份 schema(就地改写下面的 provider,见 `pnpm db:switch:mysql`),
// 没有第二份 schema.mysql.prisma;切换步骤见 docs/mysql.md。
// 2) 角色与优先级用 String 存储('ADMIN' | 'TEACHER' | 'STUDENT'、
// 'LOW' | 'NORMAL' | 'HIGH' | 'URGENT'),在 API 层用 zod 校验,
// 这样 SQLite / MySQL 行为完全一致。
// 3) 所有主键使用 cuid 字符串,便于多端离线生成与合并。
generator client {
provider = "prisma-client"
output = "../src/generated/prisma"
}
datasource db {
provider = "sqlite"
}
/// 用户:教师 / 管理员 / 学生统一存储
model User {
id String @id @default(cuid())
username String @unique
passwordHash String
name String
role String @default("STUDENT")
classId String?
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
// 学生的主班级(一个学生属于一个主班级)
class Class? @relation("ClassStudents", fields: [classId], references: [id], onDelete: SetNull)
// 教师创建(负责)的班级
ownedClasses Class[] @relation("ClassOwner")
// 教师被分配协作的班级
classAssignments ClassTeacher[]
courses Course[]
homeworkStatuses HomeworkStatus[]
notificationReads NotificationRead[]
grades Grade[]
enrollments Enrollment[]
createdHomeworks Homework[] @relation("HomeworkCreator")
createdNotices Notification[] @relation("NotificationCreator")
@@index([classId])
@@index([role])
}
/// 班级
model Class {
id String @id @default(cuid())
name String
grade String
teacherId String
/// 班级码:学生端「班级账号」登录用(唯一,字母数字,4~16 位,存大写)
code String @unique
/// 班级密码(bcrypt 哈希);null = 尚未设置,此时禁止班级账号登录
passwordHash String?
/// 本学期教学周数(班主任可调,默认 20):课表周次选择与 weekEnd 默认值都用它
termWeeks Int @default(20)
/// 通知显示位置(由教室的班级客户端在设置页里选):
/// both=客户端与 ClassIsland 都弹 / client=只弹客户端 / classisland=只弹 ClassIsland
notificationChannel String @default("both")
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
teacher User @relation("ClassOwner", fields: [teacherId], references: [id], onDelete: Cascade)
students User[] @relation("ClassStudents")
teachers ClassTeacher[]
courses Course[]
schedules Schedule[]
homeworks Homework[]
notifications Notification[]
grades Grade[]
enrollments Enrollment[]
timeLayouts TimeLayout[]
integrationDevices IntegrationDevice[]
classIslandPushes ClassIslandPush[]
@@index([teacherId])
}
/// 教师-班级 分配关系(一个教师可管理多个班级)
model ClassTeacher {
id String @id @default(cuid())
classId String
teacherId String
createdAt DateTime @default(now())
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
teacher User @relation(fields: [teacherId], references: [id], onDelete: Cascade)
@@unique([classId, teacherId])
@@index([teacherId])
}
/// 学生-班级 选课/归属记录(与 User.classId 保持同步,支持未来多班)
model Enrollment {
id String @id @default(cuid())
userId String
classId String
createdAt DateTime @default(now())
user User @relation(fields: [userId], references: [id], onDelete: Cascade)
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
@@unique([userId, classId])
@@index([classId])
}
/// 课程
model Course {
id String @id @default(cuid())
name String
teacherId String
classId String
createdAt DateTime @default(now())
teacher User @relation(fields: [teacherId], references: [id], onDelete: Cascade)
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
schedules Schedule[]
homeworks Homework[]
grades Grade[]
@@unique([classId, name])
@@index([classId])
}
/// 课表条目
model Schedule {
id String @id @default(cuid())
classId String
courseId String
/// 1=周一 ... 7=周日
dayOfWeek Int
/// HH:mm
startTime String
/// HH:mm
endTime String
location String?
/// 学期起始周次(含)
weekStart Int @default(1)
/// 学期结束周次(含)
weekEnd Int @default(20)
/// 单双周:ALL=每周(默认)/ ODD=单周 / EVEN=双周(ClassIsland WeekCountDiv + WeekCountDivTotal 的映射)
weekParity String @default("ALL")
/// 该行的来源:manual=手工建立(Web 端录入 / ClassIsland JSON 导入)
/// / classisland=插件上报同步得到。
/// 插件每次全量上报时只清理「classisland 来源且本次未再上报」的行(解决"老师在 ClassIsland
/// 里删掉一节、服务端却永远留着"的幽灵课),老师手排的课一律不删。
source String @default("manual")
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
course Course @relation(fields: [courseId], references: [id], onDelete: Cascade)
@@index([classId, dayOfWeek])
@@index([courseId])
}
/// 作业
model Homework {
id String @id @default(cuid())
classId String
courseId String?
title String
content String
/// 作业所属日期(YYYY-MM-DD,本地日期,不带时区):客户端/Web 的按天查看与日期高亮都用它
assignDate String @default("")
attachmentUrl String?
/// 遗留字段:作业"截止时间"功能已下线(UI/接口均不再读写)。
/// 保留列以免对已安装的库做破坏性迁移;新库该列恒为 null。
dueAt DateTime?
createdBy String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
course Course? @relation(fields: [courseId], references: [id], onDelete: SetNull)
creator User @relation("HomeworkCreator", fields: [createdBy], references: [id], onDelete: Cascade)
statuses HomeworkStatus[]
@@index([classId, createdAt])
@@index([classId, assignDate])
@@index([courseId])
@@index([dueAt])
}
/// 学生作业完成状态
model HomeworkStatus {
id String @id @default(cuid())
homeworkId String
userId String
completed Boolean @default(false)
updatedAt DateTime @updatedAt
homework Homework @relation(fields: [homeworkId], references: [id], onDelete: Cascade)
user User @relation(fields: [userId], references: [id], onDelete: Cascade)
@@unique([homeworkId, userId])
@@index([userId])
}
/// 通知
model Notification {
id String @id @default(cuid())
classId String
title String
content String
priority String @default("NORMAL")
createdBy String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
creator User @relation("NotificationCreator", fields: [createdBy], references: [id], onDelete: Cascade)
reads NotificationRead[]
@@index([classId, createdAt])
}
/// 通知已读记录
model NotificationRead {
id String @id @default(cuid())
notificationId String
userId String
readAt DateTime @default(now())
notification Notification @relation(fields: [notificationId], references: [id], onDelete: Cascade)
user User @relation(fields: [userId], references: [id], onDelete: Cascade)
@@unique([notificationId, userId])
@@index([userId])
}
/// 课表时间配置(ClassIsland 同款 JSON 导入后的节次时间表)
model TimeLayout {
id String @id @default(cuid())
classId String
name String
/// 来源:classisland | manual
source String @default("classisland")
/// 节次数组(JSON 字符串):[{ index, name, startTime, endTime, type, skipped }]
items String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
@@index([classId])
}
/// 成绩
model Grade {
id String @id @default(cuid())
classId String
courseId String?
userId String
examName String
score Float
totalScore Float @default(100)
publishedAt DateTime @default(now())
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
course Course? @relation(fields: [courseId], references: [id], onDelete: SetNull)
student User @relation(fields: [userId], references: [id], onDelete: Cascade)
@@index([userId, publishedAt])
@@index([classId, examName])
@@index([courseId])
}
/// ClassIsland 联动设备(一台装有联动插件的机器 = 某个班级的接入端)
///
/// 说明:
/// 1) 令牌是「设备级」的,不是用户级:插件在本机保存明文,服务端只存 sha256 哈希 + 前缀提示;
/// 2) 同一班级下按 deviceKey(机器码)唯一:插件重装后带同一 deviceKey 会自动重绑到原记录,
/// 避免设备列表里堆满重复项;
/// 3) 状态字段是「最后一次上报的快照」,Web 端据此展示"某班现在上什么课"。
model IntegrationDevice {
id String @id @default(cuid())
classId String
/// 设备显示名(默认取机器名)
name String
/// 设备唯一标识(插件上报的机器码)
deviceKey String
/// 联动方式:plugin=实时插件联动 / import=仅一次性导入
mode String @default("plugin")
/// 是否接入(关闭后插件上报与下发一律 403)
enabled Boolean @default(true)
/// 设备令牌的 sha256(明文只在创建/重置时返回一次)
tokenHash String
/// 令牌前缀(chci_xxxxxxxx),设备列表里用于人眼识别与排查
tokenHint String
/// 是否允许插件把 ClassIsland 的课表回传到本服务
syncScheduleToServer Boolean @default(true)
/// 是否允许把本班课表镜像回 ClassIsland(由插件执行)
mirrorScheduleToClassIsland Boolean @default(false)
classIslandVersion String?
pluginVersion String?
lastSeenAt DateTime?
/// 以下为最后一次上报的快照
classPlanLoaded Boolean @default(false)
currentSubject String?
currentTimeState String?
currentPeriodStart String?
currentPeriodEnd String?
nextSubject String?
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
pushes ClassIslandPush[]
@@unique([classId, deviceKey])
@@index([classId])
@@index([tokenHash])
}
/// 下发给 ClassIsland 的提醒:教师发通知 → 学生机器全屏弹出。
/// 落库是为了「设备离线时通知不丢」——插件重连后拉取未确认的一条立即弹出。
model ClassIslandPush {
id String @id @default(cuid())
classId String
deviceId String?
title String
content String
/// 显示时长(秒):映射到 ClassIsland 的 NotificationContent.Duration
durationSeconds Int @default(8)
/// 语音朗读内容;null = 不朗读
speechContent String?
urgent Boolean @default(false)
/// 提醒类型:notification=通知类 / call=叫人(叫人算「主动通知」,上课时段也立刻弹)
kind String @default("notification")
/// 发起人的用户 id(教师/管理员)
createdBy String?
/// 同时落库到通知中心的通知 id(saveToNotifications 时写入)
notificationId String?
/// 插件确认弹出的时间(确认后不再重复下发)
ackedAt DateTime?
createdAt DateTime @default(now())
/// 过期时间:超过后不再补发(避免学生几天后突然弹出旧提醒)
expiresAt DateTime
class Class @relation(fields: [classId], references: [id], onDelete: Cascade)
device IntegrationDevice? @relation(fields: [deviceId], references: [id], onDelete: SetNull)
@@index([classId, createdAt])
@@index([deviceId, ackedAt])
}