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Smartes-Klassenzimmer-Backend/prisma/schema.prisma
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279
Smartes-Klassenzimmer-Backend/prisma/schema.prisma
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// This is your Prisma schema file,
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// learn more about it in the docs: https://pris.ly/d/prisma-schema
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generator client {
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provider = "prisma-client-js"
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output = "../node_modules/.prisma/client"
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}
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datasource db {
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provider = "postgresql"
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url = env("DATABASE_URL")
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}
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model User {
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id Int @id @default(autoincrement())
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email String @unique
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username String @unique
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password String
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role String @default("Student")
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// Password Reset
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passwordResetToken String?
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passwordResetExpires DateTime?
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createdAt DateTime @default(now())
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updatedAt DateTime @updatedAt
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receivedGrades Grade[] @relation("ReceivedGrades") // Noten, die Schüler erhalten haben
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assignedGrades Grade[] @relation("AssignedGrades") // Noten, die Lehrer vergeben haben
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chatMessages ChatMessage[]
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chatGroups ChatGroupMember[]
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studentFeedbacks Feedback[] @relation("StudentFeedbacks")
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teacherFeedbacks Feedback[] @relation("TeacherFeedbacks")
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taughtTimetableEntries TimetableEntry[] @relation("TeacherTimetableEntries")
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createdChatGroups ChatGroup[] @relation("ChatGroupCreator")
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uploadedFiles File[]
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}
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// Neue Tabelle: File (Dateien)
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model File {
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id Int @id @default(autoincrement())
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filename String
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path String
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mimetype String
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size Int
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uploadedById Int
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uploadedBy User @relation(fields: [uploadedById], references: [id], onDelete: Cascade)
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timetableEntryId Int?
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timetableEntry TimetableEntry? @relation(fields: [timetableEntryId], references: [id], onDelete: Cascade)
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createdAt DateTime @default(now())
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@@index([uploadedById])
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@@index([timetableEntryId])
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}
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// Neue Tabelle: Subject (Fächer)
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model Subject {
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id Int @id @default(autoincrement())
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name String @unique // z.B. "Mathematik", "Deutsch", "Englisch"
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abbreviation String? // z.B. "Mathe", "DE", "EN"
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color String? // Farbe für UI (z.B. "#FF5733")
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createdAt DateTime @default(now())
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updatedAt DateTime @updatedAt
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timetableEntries TimetableEntry[]
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@@index([name])
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}
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// Neue Tabelle: Room (Räume)
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model Room {
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id Int @id @default(autoincrement())
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number String @unique // z.B. "A101", "B203"
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building String? // z.B. "Hauptgebäude", "Neubau"
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capacity Int? // Anzahl Sitzplätze
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equipment String? // z.B. "Beamer, Whiteboard"
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createdAt DateTime @default(now())
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updatedAt DateTime @updatedAt
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timetableEntries TimetableEntry[]
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@@index([number])
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}
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model TimetableEntry {
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id Int @id @default(autoincrement())
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dayOfWeek Int // 1 = Montag, 2 = Dienstag, ..., 5 = Freitag
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startTime String // Format: "08:00"
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endTime String // Format: "09:30"
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// Normalisierte Relationen
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subjectId Int
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subject Subject @relation(fields: [subjectId], references: [id], onDelete: Restrict)
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teacherId Int?
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teacher User? @relation("TeacherTimetableEntries", fields: [teacherId], references: [id], onDelete: SetNull)
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roomId Int?
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room Room? @relation(fields: [roomId], references: [id], onDelete: SetNull)
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// Wochenbasierte Planung
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weekNumber Int? // Kalenderwoche (1-53), null = alle Wochen
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year Int? // Jahr (z.B. 2025), null = alle Jahre
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isRecurring Boolean @default(true) // true = wiederholt sich jede Woche, false = nur für spezifische Woche
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allowStudentUploads Boolean @default(false)
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files File[]
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createdAt DateTime @default(now())
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updatedAt DateTime @updatedAt
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feedbacks Feedback[]
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grades Grade[]
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@@index([dayOfWeek])
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@@index([weekNumber, year])
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@@index([subjectId])
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@@index([teacherId])
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@@index([roomId])
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}
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model Feedback {
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id Int @id @default(autoincrement())
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// Foreign Key Relations zu User-Tabelle
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studentId Int
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student User @relation("StudentFeedbacks", fields: [studentId], references: [id], onDelete: Cascade)
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teacherId Int
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teacher User @relation("TeacherFeedbacks", fields: [teacherId], references: [id], onDelete: Cascade)
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// Foreign Key Relation zu TimetableEntry
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lessonId Int
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timetableEntry TimetableEntry @relation(fields: [lessonId], references: [id], onDelete: Cascade)
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lessonDate DateTime
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overallRating Int
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// Prisma Json-Typ für Kategorien
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categories Json?
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whatWasGood String?
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whatCanImprove String?
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additionalComments String?
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isAnonymous Boolean @default(false)
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allowTeacherResponse Boolean @default(true)
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teacherResponse String?
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teacherRespondedAt DateTime?
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createdAt DateTime @default(now())
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updatedAt DateTime @updatedAt
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// Unique Constraint: Ein Schüler kann nur einmal pro Stunde Feedback geben
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@@unique([studentId, lessonId])
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@@index([studentId])
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@@index([teacherId])
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@@index([lessonId])
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}
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model Grade {
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id Int @id @default(autoincrement())
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// Schüler-Information (erhält die Note)
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studentId Int
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student User @relation("ReceivedGrades", fields: [studentId], references: [id], onDelete: Cascade)
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// Stundenplan-Bezug
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timetableEntryId Int
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timetableEntry TimetableEntry @relation(fields: [timetableEntryId], references: [id], onDelete: Cascade)
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// Wochenbezug (Note gilt für eine spezifische Woche)
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weekNumber Int // Kalenderwoche (1-53)
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year Int // Jahr (z.B. 2025)
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// Noten-Details
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grade Float // z.B. 1.0, 2.5, 3.0 (deutsches Notensystem)
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gradeType String // z.B. "Klausur", "Mitarbeit", "Hausaufgabe", "Mündlich"
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weight Float? @default(1.0) // Gewichtung der Note (z.B. Klausur = 2.0, Mitarbeit = 1.0)
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// Lehrer-Information (vergibt die Note)
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teacherId Int
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teacher User @relation("AssignedGrades", fields: [teacherId], references: [id], onDelete: Restrict)
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// Optional: Detailbeschreibung
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title String? // z.B. "Mathearbeit Kapitel 3"
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description String? // Zusätzliche Informationen
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maxPoints Float? // Maximale Punktzahl
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achievedPoints Float? // Erreichte Punktzahl
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// Datum
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date DateTime // Datum der Leistung
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createdAt DateTime @default(now())
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updatedAt DateTime @updatedAt
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@@unique([studentId, timetableEntryId, weekNumber, year, gradeType])
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@@index([studentId])
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@@index([timetableEntryId])
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@@index([teacherId])
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@@index([weekNumber, year])
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}
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model ChatGroup {
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id Int @id @default(autoincrement())
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name String
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description String?
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createdById Int // Lehrer, der die Gruppe erstellt hat
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createdBy User @relation("ChatGroupCreator", fields: [createdById], references: [id], onDelete: Restrict)
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createdAt DateTime @default(now())
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updatedAt DateTime @updatedAt
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members ChatGroupMember[]
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messages ChatMessage[]
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@@index([createdById])
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}
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model ChatGroupMember {
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id Int @id @default(autoincrement())
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userId Int
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user User @relation(fields: [userId], references: [id], onDelete: Cascade)
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groupId Int
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group ChatGroup @relation(fields: [groupId], references: [id], onDelete: Cascade)
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joinedAt DateTime @default(now())
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@@unique([userId, groupId])
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@@index([userId])
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@@index([groupId])
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}
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model ChatMessage {
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id Int @id @default(autoincrement())
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content String
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userId Int
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user User @relation(fields: [userId], references: [id], onDelete: Cascade)
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groupId Int
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group ChatGroup @relation(fields: [groupId], references: [id], onDelete: Cascade)
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createdAt DateTime @default(now())
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@@index([groupId])
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@@index([userId])
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@@index([createdAt])
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}
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model Student {
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studentId Int @id @default(autoincrement()) @map("student_id")
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studentFirstName String @map("student_first_name")
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studentLastName String @map("student_last_name")
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studentClassName String? @map("student_class_name")
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studentRfidCardUid String @unique @map("student_rfid_card_uid")
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studentCardIsActive Boolean @default(true) @map("student_card_is_active")
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attendanceLogs AttendanceLog[]
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@@map("students")
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}
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model AttendanceLog {
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attendanceLogId Int @id @default(autoincrement()) @map("attendance_log_id")
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studentId Int @map("student_id")
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student Student @relation(fields: [studentId], references: [studentId], onDelete: Cascade)
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attendanceScannedAt DateTime @map("attendance_scanned_at")
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attendanceEventType String @map("attendance_event_type")
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wasManualEntry Boolean @default(false) @map("was_manual_entry")
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manualEntryReason String? @map("manual_entry_reason")
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@@index([studentId, attendanceScannedAt])
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@@map("attendance_logs")
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}
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