Module Update
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SpecialX
346
docs/scripts/seed-exams.ts
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346
docs/scripts/seed-exams.ts
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import "dotenv/config"
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import { db } from "@/shared/db"
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import { users, exams, questions, knowledgePoints, examSubmissions, examQuestions, submissionAnswers } from "@/shared/db/schema"
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import { createId } from "@paralleldrive/cuid2"
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import { faker } from "@faker-js/faker"
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import { eq } from "drizzle-orm"
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/**
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* Seed Script for Next_Edu
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*
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* Usage:
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* 1. Ensure DATABASE_URL is set in .env
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* 2. Run with tsx: npx tsx docs/scripts/seed-exams.ts
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*/
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const SUBJECTS = ["Mathematics", "Physics", "English", "Chemistry", "Biology"]
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const GRADES = ["Grade 10", "Grade 11", "Grade 12"]
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const DIFFICULTY = [1, 2, 3, 4, 5]
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async function seed() {
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console.log("🌱 Starting seed process...")
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// 1. Create a Teacher User if not exists
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const teacherEmail = "teacher@example.com"
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let teacherId = "user_teacher_123"
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const existingTeacher = await db.query.users.findFirst({
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where: eq(users.email, teacherEmail)
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})
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if (!existingTeacher) {
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console.log("Creating teacher user...")
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await db.insert(users).values({
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id: teacherId,
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name: "Senior Teacher",
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email: teacherEmail,
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role: "teacher",
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image: "https://api.dicebear.com/7.x/avataaars/svg?seed=Teacher",
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})
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} else {
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teacherId = existingTeacher.id
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console.log("Teacher user exists:", teacherId)
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}
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// 1b. Create Students
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console.log("Creating students...")
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const studentIds: string[] = []
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for (let i = 0; i < 5; i++) {
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const sId = createId()
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studentIds.push(sId)
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await db.insert(users).values({
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id: sId,
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name: faker.person.fullName(),
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email: faker.internet.email(),
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role: "student",
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image: `https://api.dicebear.com/7.x/avataaars/svg?seed=${sId}`,
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})
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}
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// 2. Create Knowledge Points
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console.log("Creating knowledge points...")
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const kpIds: string[] = []
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for (const subject of SUBJECTS) {
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for (let i = 0; i < 3; i++) {
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const kpId = createId()
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kpIds.push(kpId)
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await db.insert(knowledgePoints).values({
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id: kpId,
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name: `${subject} - ${faker.science.unit()}`,
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description: faker.lorem.sentence(),
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level: 1,
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})
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}
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}
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// 3. Create Questions
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console.log("Creating questions...")
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const questionIds: string[] = []
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for (let i = 0; i < 50; i++) {
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const qId = createId()
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questionIds.push(qId)
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const type = faker.helpers.arrayElement(["single_choice", "multiple_choice", "text", "judgment"])
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await db.insert(questions).values({
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id: qId,
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content: {
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text: faker.lorem.paragraph(),
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options: type.includes("choice") ? [
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{ id: "A", text: faker.lorem.sentence(), isCorrect: true },
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{ id: "B", text: faker.lorem.sentence(), isCorrect: false },
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{ id: "C", text: faker.lorem.sentence(), isCorrect: false },
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{ id: "D", text: faker.lorem.sentence(), isCorrect: false },
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] : undefined
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},
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type: type as any,
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difficulty: faker.helpers.arrayElement(DIFFICULTY),
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authorId: teacherId,
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})
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}
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// 4. Create Exams & Submissions
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console.log("Creating exams and submissions...")
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for (let i = 0; i < 15; i++) {
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const examId = createId()
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const subject = faker.helpers.arrayElement(SUBJECTS)
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const grade = faker.helpers.arrayElement(GRADES)
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const status = faker.helpers.arrayElement(["draft", "published", "archived"])
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const scheduledAt = faker.date.soon({ days: 30 })
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const meta = {
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subject,
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grade,
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difficulty: faker.helpers.arrayElement(DIFFICULTY),
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totalScore: 100,
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durationMin: faker.helpers.arrayElement([45, 60, 90, 120]),
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questionCount: faker.number.int({ min: 10, max: 30 }),
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tags: [faker.word.sample(), faker.word.sample()],
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scheduledAt: scheduledAt.toISOString()
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}
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await db.insert(exams).values({
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id: examId,
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title: `${subject} ${faker.helpers.arrayElement(["Midterm", "Final", "Quiz", "Unit Test"])}`,
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description: JSON.stringify(meta),
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creatorId: teacherId,
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startTime: scheduledAt,
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status: status as any,
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})
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// Link some questions to this exam (random 5 questions)
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const selectedQuestions = faker.helpers.arrayElements(questionIds, 5)
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await db.insert(examQuestions).values(
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selectedQuestions.map((qId, idx) => ({
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examId,
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questionId: qId,
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score: 20, // 5 * 20 = 100
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order: idx
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}))
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)
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// Create submissions for published exams
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if (status === "published") {
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const submittingStudents = faker.helpers.arrayElements(studentIds, faker.number.int({ min: 1, max: 3 }))
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for (const studentId of submittingStudents) {
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const submissionId = createId()
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const submissionStatus = faker.helpers.arrayElement(["submitted", "graded"])
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await db.insert(examSubmissions).values({
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id: submissionId,
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examId,
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studentId,
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score: submissionStatus === "graded" ? faker.number.int({ min: 60, max: 100 }) : null,
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status: submissionStatus,
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submittedAt: faker.date.recent(),
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})
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// Generate answers for this submission
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for (const qId of selectedQuestions) {
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await db.insert(submissionAnswers).values({
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id: createId(),
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submissionId: submissionId,
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questionId: qId,
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answerContent: { answer: faker.lorem.sentence() }, // Mock answer
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score: submissionStatus === "graded" ? faker.number.int({ min: 0, max: 20 }) : null,
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feedback: submissionStatus === "graded" ? faker.lorem.sentence() : null,
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})
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}
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}
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}
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}
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// 5. Create a specific Primary School Chinese Exam (小学语文)
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console.log("Creating Primary School Chinese Exam...")
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const chineseExamId = createId()
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const chineseQuestions = []
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// 5a. Pinyin Questions
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const pinyinQ1 = createId()
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const pinyinQ2 = createId()
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chineseQuestions.push({ id: pinyinQ1, score: 5 }, { id: pinyinQ2, score: 5 })
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await db.insert(questions).values([
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{
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id: pinyinQ1,
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content: { text: "看拼音写词语：chūn tiān ( )" },
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type: "text",
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difficulty: 1,
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authorId: teacherId,
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},
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{
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id: pinyinQ2,
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content: { text: "看拼音写词语：huā duǒ ( )" },
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type: "text",
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difficulty: 1,
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authorId: teacherId,
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}
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])
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// 5b. Vocabulary Questions
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const vocabQ1 = createId()
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const vocabQ2 = createId()
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chineseQuestions.push({ id: vocabQ1, score: 5 }, { id: vocabQ2, score: 5 })
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await db.insert(questions).values([
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{
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id: vocabQ1,
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content: {
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text: "选词填空：今天天气真（ ）。",
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options: [
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{ id: "A", text: "美好", isCorrect: false },
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{ id: "B", text: "晴朗", isCorrect: true },
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{ id: "C", text: "快乐", isCorrect: false }
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]
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},
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type: "single_choice",
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difficulty: 2,
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authorId: teacherId,
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},
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{
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id: vocabQ2,
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content: {
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text: "下列词语中，书写正确的是（ ）。",
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options: [
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{ id: "A", text: "漂扬", isCorrect: false },
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{ id: "B", text: "飘扬", isCorrect: true },
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{ id: "C", text: "票扬", isCorrect: false }
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]
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},
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type: "single_choice",
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difficulty: 2,
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authorId: teacherId,
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}
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])
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// 5c. Reading Comprehension Questions
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const readingQ1 = createId()
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const readingQ2 = createId()
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chineseQuestions.push({ id: readingQ1, score: 10 }, { id: readingQ2, score: 10 })
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await db.insert(questions).values([
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{
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id: readingQ1,
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content: {
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text: "阅读短文《小兔子乖乖》，回答问题：\n\n小兔子乖乖，把门儿开开...\n\n文中提到的动物是？",
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options: [
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{ id: "A", text: "大灰狼", isCorrect: false },
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{ id: "B", text: "小兔子", isCorrect: true },
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{ id: "C", text: "小花猫", isCorrect: false }
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]
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},
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type: "single_choice",
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difficulty: 3,
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authorId: teacherId,
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},
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{
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id: readingQ2,
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content: { text: "请用一句话形容小兔子。" },
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type: "text",
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difficulty: 3,
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authorId: teacherId,
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}
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])
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// 5d. Construct Exam Structure
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const chineseExamStructure = [
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{
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id: createId(),
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type: "group",
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title: "第一部分：基础知识",
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children: [
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{
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id: createId(),
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type: "group",
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title: "一、看拼音写词语",
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children: [
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{ id: createId(), type: "question", questionId: pinyinQ1, score: 5 },
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{ id: createId(), type: "question", questionId: pinyinQ2, score: 5 }
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]
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},
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{
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id: createId(),
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type: "group",
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title: "二、词语积累",
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children: [
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{ id: createId(), type: "question", questionId: vocabQ1, score: 5 },
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{ id: createId(), type: "question", questionId: vocabQ2, score: 5 }
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]
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}
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]
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},
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{
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id: createId(),
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type: "group",
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title: "第二部分：阅读理解",
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children: [
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{
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id: createId(),
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type: "group",
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title: "三、短文阅读",
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children: [
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{ id: createId(), type: "question", questionId: readingQ1, score: 10 },
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{ id: createId(), type: "question", questionId: readingQ2, score: 10 }
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]
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}
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]
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}
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]
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await db.insert(exams).values({
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id: chineseExamId,
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title: "小学语文三年级上册期末考试",
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description: JSON.stringify({
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subject: "Chinese",
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grade: "Grade 3",
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difficulty: 3,
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totalScore: 40,
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durationMin: 90,
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questionCount: 6,
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tags: ["期末", "语文", "三年级"]
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}),
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structure: chineseExamStructure,
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creatorId: teacherId,
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status: "published",
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startTime: new Date(),
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})
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// Link questions to exam
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await db.insert(examQuestions).values(
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chineseQuestions.map((q, idx) => ({
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examId: chineseExamId,
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questionId: q.id,
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score: q.score,
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order: idx
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}))
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)
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console.log("✅ Seed completed successfully!")
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process.exit(0)
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}
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seed().catch((err) => {
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console.error("❌ Seed failed:", err)
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process.exit(1)
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})
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