ea051e9380
新增功能： 1. AI智能评分系统 - 集成OpenAI兼容API进行简答题评分 - 提供分数、评语和改进建议 - 支持自定义AI服务配置（BaseURL、APIKey、Model） 2. 题目列表页面 - 展示所有题目和答案 - Tab标签页形式的题型筛选（选择题、多选题、判断题、填空题、简答题） - 关键词搜索功能（支持题目内容和编号搜索） - 填空题特殊渲染：****显示为下划线 - 判断题不显示选项，界面更简洁 3. UI优化 - 答题结果组件重构，支持AI评分显示 - 首页新增"题目列表"快速入口 - 响应式设计，适配移动端和PC端 技术改进： - 添加AI评分服务层（internal/services/ai_grading.go） - 扩展题目模型支持AI评分结果 - 更新配置管理支持AI服务配置 - 添加AI评分测试脚本和文档 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
705 lines
17 KiB
Go
705 lines
17 KiB
Go
package handlers
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import (
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"ankao/internal/database"
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"ankao/internal/models"
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"ankao/internal/services"
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"encoding/json"
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"log"
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"net/http"
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"sort"
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"strconv"
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"strings"
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"time"
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"github.com/gin-gonic/gin"
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)
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// GetPracticeQuestions 获取练习题目列表
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func GetPracticeQuestions(c *gin.Context) {
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typeParam := c.Query("type")
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searchQuery := c.Query("search")
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db := database.GetDB()
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var questions []models.PracticeQuestion
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var total int64
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query := db.Model(&models.PracticeQuestion{})
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// 根据题型过滤
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if typeParam != "" {
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query = query.Where("type = ?", typeParam)
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}
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// 根据搜索关键词过滤（搜索题目内容或题目编号）
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if searchQuery != "" {
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query = query.Where("question LIKE ? OR question_id LIKE ?", "%"+searchQuery+"%", "%"+searchQuery+"%")
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}
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// 获取总数
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query.Count(&total)
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// 查询所有题目 - 按题型和题目编号升序排序
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// 先将 question_id 转为文本，提取数字部分，再转为整数排序
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err := query.Order("type ASC, CAST(COALESCE(NULLIF(REGEXP_REPLACE(question_id::text, '[^0-9]', '', 'g'), ''), '0') AS INTEGER) ASC").Find(&questions).Error
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{
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"success": false,
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"message": "查询题目失败",
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})
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return
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}
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// 转换为DTO
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dtos := make([]models.PracticeQuestionDTO, len(questions))
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for i, q := range questions {
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dto := convertToDTO(q)
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dtos[i] = dto
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": dtos,
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"total": total,
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})
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}
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// GetPracticeQuestionByID 获取单个练习题目
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func GetPracticeQuestionByID(c *gin.Context) {
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idStr := c.Param("id")
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id, err := strconv.ParseUint(idStr, 10, 32)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"success": false,
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"message": "无效的题目ID",
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})
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return
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}
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db := database.GetDB()
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var question models.PracticeQuestion
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if err := db.First(&question, id).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{
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"success": false,
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"message": "题目不存在",
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})
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return
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}
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// 转换为DTO
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dto := convertToDTO(question)
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": dto,
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})
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}
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// GetRandomPracticeQuestion 获取随机练习题目
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func GetRandomPracticeQuestion(c *gin.Context) {
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typeParam := c.Query("type")
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db := database.GetDB()
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var question models.PracticeQuestion
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query := db.Model(&models.PracticeQuestion{})
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if typeParam != "" {
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query = query.Where("type = ?", typeParam)
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}
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// 使用PostgreSQL的随机排序
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if err := query.Order("RANDOM()").First(&question).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{
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"success": false,
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"message": "暂无题目",
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})
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return
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}
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// 转换为DTO
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dto := convertToDTO(question)
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": dto,
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})
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}
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// SubmitPracticeAnswer 提交练习答案
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func SubmitPracticeAnswer(c *gin.Context) {
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var submit models.PracticeAnswerSubmit
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if err := c.ShouldBindJSON(&submit); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"success": false,
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"message": "请求参数错误",
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})
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return
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}
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// 获取用户ID（认证中间件已确保存在）
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userID, exists := c.Get("user_id")
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if !exists {
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c.JSON(http.StatusUnauthorized, gin.H{
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"success": false,
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"message": "未登录",
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})
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return
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}
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db := database.GetDB()
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var question models.PracticeQuestion
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if err := db.First(&question, submit.QuestionID).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{
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"success": false,
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"message": "题目不存在",
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})
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return
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}
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// 解析正确答案
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var correctAnswer interface{}
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if err := json.Unmarshal([]byte(question.AnswerData), &correctAnswer); err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{
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"success": false,
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"message": "答案数据错误",
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})
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return
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}
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// 验证答案
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correct := checkPracticeAnswer(question.Type, submit.Answer, correctAnswer)
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// AI评分结果（仅简答题）
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var aiGrading *models.AIGrading = nil
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// 对简答题使用AI评分
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if question.Type == "short-answer" {
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// 获取用户答案字符串
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userAnswerStr, ok := submit.Answer.(string)
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if ok {
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// 获取标准答案字符串
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standardAnswerStr, ok := correctAnswer.(string)
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if ok {
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// 调用AI评分服务
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aiService := services.NewAIGradingService()
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aiResult, err := aiService.GradeShortAnswer(question.Question, standardAnswerStr, userAnswerStr)
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if err != nil {
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// AI评分失败时记录日志，但不影响主流程
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log.Printf("AI评分失败: %v", err)
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} else {
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// 使用AI的评分结果
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correct = aiResult.IsCorrect
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aiGrading = &models.AIGrading{
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Score: aiResult.Score,
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Feedback: aiResult.Feedback,
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Suggestion: aiResult.Suggestion,
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}
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}
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}
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}
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}
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// 记录用户答题历史
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if uid, ok := userID.(uint); ok {
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record := models.UserAnswerRecord{
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UserID: uid,
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QuestionID: question.ID,
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IsCorrect: correct,
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AnsweredAt: time.Now(),
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}
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// 记录到数据库（忽略错误，不影响主流程）
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if err := db.Create(&record).Error; err != nil {
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log.Printf("记录答题历史失败: %v", err)
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}
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}
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// 如果答错，记录到错题本
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if !correct {
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if uid, ok := userID.(uint); ok {
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// 记录错题
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if err := recordWrongQuestion(uid, question.ID, submit.Answer, correctAnswer); err != nil {
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// 记录错题失败不影响主流程，只记录日志
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log.Printf("记录错题失败: %v", err)
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}
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}
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}
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result := models.PracticeAnswerResult{
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Correct: correct,
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UserAnswer: submit.Answer,
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CorrectAnswer: correctAnswer, // 始终返回正确答案
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AIGrading: aiGrading, // AI评分结果（仅简答题有值）
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": result,
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})
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}
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// GetPracticeQuestionTypes 获取题型列表
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func GetPracticeQuestionTypes(c *gin.Context) {
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types := []gin.H{
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{
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"type": "fill-in-blank",
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"type_name": "填空题",
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},
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{
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"type": "true-false",
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"type_name": "判断题",
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},
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{
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"type": "multiple-choice",
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"type_name": "选择题",
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},
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{
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"type": "multiple-selection",
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"type_name": "多选题",
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},
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{
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"type": "short-answer",
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"type_name": "简答题",
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},
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": types,
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})
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}
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// checkPracticeAnswer 检查练习答案是否正确
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func checkPracticeAnswer(questionType string, userAnswer, correctAnswer interface{}) bool {
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switch questionType {
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case "true-false":
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// 判断题: boolean 比较
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userBool, ok1 := userAnswer.(bool)
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correctBool, ok2 := correctAnswer.(bool)
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return ok1 && ok2 && userBool == correctBool
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case "multiple-choice":
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// 单选题: 字符串比较
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userStr, ok1 := userAnswer.(string)
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correctStr, ok2 := correctAnswer.(string)
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return ok1 && ok2 && userStr == correctStr
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case "multiple-selection":
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// 多选题: 数组比较
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userArr, ok1 := toStringArray(userAnswer)
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correctArr, ok2 := toStringArray(correctAnswer)
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if !ok1 || !ok2 || len(userArr) != len(correctArr) {
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return false
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}
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// 转换为map进行比较
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userMap := make(map[string]bool)
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for _, v := range userArr {
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userMap[v] = true
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}
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for _, v := range correctArr {
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if !userMap[v] {
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return false
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}
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}
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return true
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case "fill-in-blank":
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// 填空题: 数组比较
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userArr, ok1 := toStringArray(userAnswer)
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correctArr, ok2 := toStringArray(correctAnswer)
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if !ok1 || !ok2 || len(userArr) != len(correctArr) {
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log.Printf("填空题验证失败 - 数组转换或长度不匹配: ok1=%v, ok2=%v, userLen=%d, correctLen=%d",
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ok1, ok2, len(userArr), len(correctArr))
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return false
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}
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// 逐个比较填空答案（去除前后空格）
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for i := range correctArr {
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userTrimmed := strings.TrimSpace(userArr[i])
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correctTrimmed := strings.TrimSpace(correctArr[i])
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if userTrimmed != correctTrimmed {
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log.Printf("填空题验证失败 - 第%d个答案不匹配: user='%s', correct='%s'",
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i+1, userTrimmed, correctTrimmed)
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return false
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}
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}
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return true
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case "short-answer":
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// 简答题: 字符串比较(简单实现,实际可能需要更复杂的判断)
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userStr, ok1 := userAnswer.(string)
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correctStr, ok2 := correctAnswer.(string)
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return ok1 && ok2 && userStr == correctStr
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}
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return false
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}
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// toStringArray 将interface{}转换为字符串数组
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func toStringArray(v interface{}) ([]string, bool) {
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switch arr := v.(type) {
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case []string:
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return arr, true
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case []interface{}:
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result := make([]string, len(arr))
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for i, item := range arr {
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if str, ok := item.(string); ok {
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result[i] = str
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} else {
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return nil, false
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}
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}
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return result, true
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default:
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return nil, false
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}
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}
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// convertToDTO 将数据库模型转换为前端DTO
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func convertToDTO(question models.PracticeQuestion) models.PracticeQuestionDTO {
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dto := models.PracticeQuestionDTO{
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ID: question.ID,
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QuestionID: question.QuestionID,
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Type: question.Type, // 直接使用数据库中的type，不做映射
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Content: question.Question,
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Category: question.TypeName, // 使用typeName作为分类显示
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Options: []models.Option{},
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}
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// 解析答案数据
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var answer interface{}
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if err := json.Unmarshal([]byte(question.AnswerData), &answer); err == nil {
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dto.Answer = answer
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}
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// 判断题自动生成选项（正确在前，错误在后）
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if question.Type == "true-false" {
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dto.Options = []models.Option{
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{Key: "true", Value: "正确"},
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{Key: "false", Value: "错误"},
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}
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return dto
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}
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// 解析选项数据(如果有)
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if question.OptionsData != "" {
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var optionsMap map[string]string
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if err := json.Unmarshal([]byte(question.OptionsData), &optionsMap); err == nil {
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// 将map转换为Option数组，并按key排序
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keys := make([]string, 0, len(optionsMap))
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for key := range optionsMap {
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keys = append(keys, key)
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}
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// 对keys进行排序
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sort.Strings(keys)
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// 按排序后的key顺序添加选项
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for _, key := range keys {
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dto.Options = append(dto.Options, models.Option{
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Key: key,
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Value: optionsMap[key],
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})
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}
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}
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}
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return dto
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}
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// GetStatistics 获取用户统计数据
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func GetStatistics(c *gin.Context) {
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// 获取用户ID
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userID, exists := c.Get("user_id")
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if !exists {
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c.JSON(http.StatusUnauthorized, gin.H{
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"success": false,
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"message": "未登录",
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})
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return
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}
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uid, ok := userID.(uint)
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if !ok {
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c.JSON(http.StatusInternalServerError, gin.H{
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"success": false,
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"message": "用户ID格式错误",
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})
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return
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}
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db := database.GetDB()
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// 获取题库总数
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var totalQuestions int64
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db.Model(&models.PracticeQuestion{}).Count(&totalQuestions)
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// 获取用户已答题数（去重）
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var answeredQuestions int64
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db.Model(&models.UserAnswerRecord{}).
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Where("user_id = ?", uid).
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Distinct("question_id").
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Count(&answeredQuestions)
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// 获取用户答对题数
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var correctAnswers int64
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db.Model(&models.UserAnswerRecord{}).
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Where("user_id = ? AND is_correct = ?", uid, true).
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Count(&correctAnswers)
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// 获取用户错题数量（所有错题，包括已掌握和未掌握的）
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var wrongQuestions int64
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db.Model(&models.WrongQuestion{}).
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Where("user_id = ?", uid).
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Count(&wrongQuestions)
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// 计算正确率
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var accuracy float64
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if answeredQuestions > 0 {
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// 正确率 = 答对题数 / 总答题数
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var totalAnswers int64
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db.Model(&models.UserAnswerRecord{}).
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Where("user_id = ?", uid).
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Count(&totalAnswers)
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accuracy = float64(correctAnswers) / float64(totalAnswers) * 100
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}
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stats := models.UserStatistics{
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TotalQuestions: int(totalQuestions),
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AnsweredQuestions: int(answeredQuestions),
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CorrectAnswers: int(correctAnswers),
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WrongQuestions: int(wrongQuestions),
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Accuracy: accuracy,
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": stats,
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})
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}
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// CreatePracticeQuestion 创建新的练习题目
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func CreatePracticeQuestion(c *gin.Context) {
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var req struct {
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Type string `json:"type" binding:"required"`
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TypeName string `json:"type_name"`
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Question string `json:"question" binding:"required"`
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Answer interface{} `json:"answer" binding:"required"`
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Options map[string]string `json:"options"`
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}
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
|
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"success": false,
|
||
"message": "请求参数错误: " + err.Error(),
|
||
})
|
||
return
|
||
}
|
||
|
||
db := database.GetDB()
|
||
|
||
// 自动生成题目编号：找到该题型的最大编号并+1
|
||
var maxQuestionID string
|
||
err := db.Model(&models.PracticeQuestion{}).
|
||
Where("type = ?", req.Type).
|
||
Select("question_id").
|
||
Order("CAST(COALESCE(NULLIF(REGEXP_REPLACE(question_id::text, '[^0-9]', '', 'g'), ''), '0') AS INTEGER) DESC").
|
||
Limit(1).
|
||
Pluck("question_id", &maxQuestionID).Error
|
||
|
||
// 生成新的题目编号
|
||
var newQuestionID string
|
||
if err != nil || maxQuestionID == "" {
|
||
// 没有找到该题型的题目，从1开始
|
||
newQuestionID = "1"
|
||
} else {
|
||
// 从最大编号中提取数字并+1
|
||
var maxNum int
|
||
_, scanErr := strconv.Atoi(maxQuestionID)
|
||
if scanErr == nil {
|
||
maxNum, _ = strconv.Atoi(maxQuestionID)
|
||
}
|
||
newQuestionID = strconv.Itoa(maxNum + 1)
|
||
}
|
||
|
||
// 将答案序列化为JSON字符串
|
||
answerData, err := json.Marshal(req.Answer)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"message": "答案格式错误",
|
||
})
|
||
return
|
||
}
|
||
|
||
// 将选项序列化为JSON字符串
|
||
var optionsData string
|
||
if req.Options != nil && len(req.Options) > 0 {
|
||
optionsBytes, err := json.Marshal(req.Options)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"message": "选项格式错误",
|
||
})
|
||
return
|
||
}
|
||
optionsData = string(optionsBytes)
|
||
}
|
||
|
||
question := models.PracticeQuestion{
|
||
QuestionID: newQuestionID,
|
||
Type: req.Type,
|
||
TypeName: req.TypeName,
|
||
Question: req.Question,
|
||
AnswerData: string(answerData),
|
||
OptionsData: optionsData,
|
||
}
|
||
|
||
if err := db.Create(&question).Error; err != nil {
|
||
c.JSON(http.StatusInternalServerError, gin.H{
|
||
"success": false,
|
||
"message": "创建题目失败",
|
||
})
|
||
return
|
||
}
|
||
|
||
// 返回创建的题目
|
||
dto := convertToDTO(question)
|
||
c.JSON(http.StatusOK, gin.H{
|
||
"success": true,
|
||
"data": dto,
|
||
"message": "创建成功",
|
||
})
|
||
}
|
||
|
||
// UpdatePracticeQuestion 更新练习题目
|
||
func UpdatePracticeQuestion(c *gin.Context) {
|
||
idStr := c.Param("id")
|
||
id, err := strconv.ParseUint(idStr, 10, 32)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"message": "无效的题目ID",
|
||
})
|
||
return
|
||
}
|
||
|
||
var req struct {
|
||
Type string `json:"type"`
|
||
TypeName string `json:"type_name"`
|
||
Question string `json:"question"`
|
||
Answer interface{} `json:"answer"`
|
||
Options map[string]string `json:"options"`
|
||
}
|
||
|
||
if err := c.ShouldBindJSON(&req); err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"message": "请求参数错误: " + err.Error(),
|
||
})
|
||
return
|
||
}
|
||
|
||
db := database.GetDB()
|
||
var question models.PracticeQuestion
|
||
|
||
// 查找题目是否存在
|
||
if err := db.First(&question, id).Error; err != nil {
|
||
c.JSON(http.StatusNotFound, gin.H{
|
||
"success": false,
|
||
"message": "题目不存在",
|
||
})
|
||
return
|
||
}
|
||
|
||
// 更新字段（注意：不允许修改 QuestionID，由系统自动生成）
|
||
if req.Type != "" {
|
||
question.Type = req.Type
|
||
}
|
||
if req.TypeName != "" {
|
||
question.TypeName = req.TypeName
|
||
}
|
||
if req.Question != "" {
|
||
question.Question = req.Question
|
||
}
|
||
if req.Answer != nil {
|
||
answerData, err := json.Marshal(req.Answer)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"message": "答案格式错误",
|
||
})
|
||
return
|
||
}
|
||
question.AnswerData = string(answerData)
|
||
}
|
||
if req.Options != nil {
|
||
optionsBytes, err := json.Marshal(req.Options)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"message": "选项格式错误",
|
||
})
|
||
return
|
||
}
|
||
question.OptionsData = string(optionsBytes)
|
||
}
|
||
|
||
// 保存更新
|
||
if err := db.Save(&question).Error; err != nil {
|
||
c.JSON(http.StatusInternalServerError, gin.H{
|
||
"success": false,
|
||
"message": "更新题目失败",
|
||
})
|
||
return
|
||
}
|
||
|
||
// 返回更新后的题目
|
||
dto := convertToDTO(question)
|
||
c.JSON(http.StatusOK, gin.H{
|
||
"success": true,
|
||
"data": dto,
|
||
"message": "更新成功",
|
||
})
|
||
}
|
||
|
||
// DeletePracticeQuestion 删除练习题目
|
||
func DeletePracticeQuestion(c *gin.Context) {
|
||
idStr := c.Param("id")
|
||
id, err := strconv.ParseUint(idStr, 10, 32)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"message": "无效的题目ID",
|
||
})
|
||
return
|
||
}
|
||
|
||
db := database.GetDB()
|
||
|
||
// 检查题目是否存在
|
||
var question models.PracticeQuestion
|
||
if err := db.First(&question, id).Error; err != nil {
|
||
c.JSON(http.StatusNotFound, gin.H{
|
||
"success": false,
|
||
"message": "题目不存在",
|
||
})
|
||
return
|
||
}
|
||
|
||
// 删除题目
|
||
if err := db.Delete(&question).Error; err != nil {
|
||
c.JSON(http.StatusInternalServerError, gin.H{
|
||
"success": false,
|
||
"message": "删除题目失败",
|
||
})
|
||
return
|
||
}
|
||
|
||
c.JSON(http.StatusOK, gin.H{
|
||
"success": true,
|
||
"message": "删除成功",
|
||
})
|
||
}
|