Version:0.1.0.dev.260205

feat: 🆕 完善course模块功能并优化批量导入接口

- 调整 task-class 模型代码并增加注释，使其更简洁易读 ✍️
- 结构调整：将课程相关接口从 schedule 分类移至独立的 course 分类 🚀
  - 修改接口 URL 从 /schedule 更改为 /course 🔄

fix: 🐛 修复批量导入课程接口重复导入相同课程的 bug
- 通过在数据库添加唯一约束解决此问题 🔐
- 这只是初步修复，后续会在 sv 层增加重复/时间冲突检测逻辑 ⚠️
- 引导用户修改课表与任务块时间冲突的机制待实现 ⏳

refactor: 🔨 重构 schedule 表单结构
- 将节次管理策略从字符串存储改为原子化存储（如 1-2 节更改为单独两条记录）
- 为后续冲突检查与智能排课做准备 🧠

perf: 🚀 优化批量导入课程接口性能
- 通过数据暂存内存中减少数据插入 MySQL 的次数 ⚡

backend/service/course.go

@@ -2,21 +2,20 @@ package service
 
 import (
 	"context"
-	"fmt"
 
 	"github.com/LoveLosita/smartflow/backend/dao"
 	"github.com/LoveLosita/smartflow/backend/model"
 	"github.com/LoveLosita/smartflow/backend/respond"
 )
 
-type ScheduleService struct {
+type CourseService struct {
 	// 伸出手：准备接住 DAO
-	dao *dao.ScheduleDAO
+	dao *dao.CourseDAO
 }
 
-// NewScheduleService 创建 ScheduleService 实例
-func NewScheduleService(dao *dao.ScheduleDAO) *ScheduleService {
-	return &ScheduleService{
+// NewCourseService 创建 CourseService 实例
+func NewCourseService(dao *dao.CourseDAO) *CourseService {
+	return &CourseService{
 		dao: dao,
 	}
 }
@@ -34,7 +33,7 @@ func CheckSingleCourse(req model.UserCheckCourseRequest) bool {
 }
 
 // AddUserCourses 添加用户课程表
-func (ss *ScheduleService) AddUserCourses(ctx context.Context, req model.UserImportCoursesRequest, userID int) error {
+func (ss *CourseService) AddUserCourses(ctx context.Context, req model.UserImportCoursesRequest, userID int) error {
 	//1.先校验参数是否正确
 	for _, course := range req.Courses {
 		result := CheckSingleCourse(course)
@@ -43,30 +42,32 @@ func (ss *ScheduleService) AddUserCourses(ctx context.Context, req model.UserImp
 		}
 	}
 	//2.转换为 Schedule 切片
+	var finalSchedules []model.Schedule
 	for _, course := range req.Courses {
 		var schedules []model.Schedule
 		for _, arrangement := range course.Arrangements {
 			for week := arrangement.StartWeek; week <= arrangement.EndWeek; week++ {
-				sections := fmt.Sprintf("%d-%d", arrangement.StartSection, arrangement.EndSection)
-				schedule := model.Schedule{
-					Type:          "course",
-					Week:          week,
-					DayOfWeek:     arrangement.DayOfWeek,
-					Sections:      sections,
-					Status:        "normal",
-					UserID:        userID,
-					CanBeEmbedded: course.IsAllowTasks,
+				for section := arrangement.StartSection; section <= arrangement.EndSection; section++ {
+					schedule := model.Schedule{
+						Type:          "course",
+						Week:          week,
+						DayOfWeek:     arrangement.DayOfWeek,
+						Section:       section,
+						Status:        "normal",
+						UserID:        userID,
+						CanBeEmbedded: course.IsAllowTasks,
+					}
+					schedules = append(schedules, schedule)
 				}
-				schedules = append(schedules, schedule)
 			}
 		}
-		//3.调用 DAO 方法添加课程
-		err := ss.dao.AddUserCourses(schedules)
-		if err != nil {
-			return err
-		}
+		finalSchedules = append(finalSchedules, schedules...)
+	}
+	//3.调用 DAO 方法添加课程
+	err := ss.dao.AddUserCourses(finalSchedules)
+	if err != nil {
+		return err
 	}
-
 	//4.返回结果
 	return nil
 }