feat: 🎸 课程列表增加分类id参数

server/api/api/lesson/v1/lesson.go

@@ -8,7 +8,9 @@ import (
 
 // 获取课程列表请求
 type LessonListReq struct {
-	g.Meta `path:"/lesson/list" method:"get" tags:"课程" summary:"获取课程列表"`
+	g.Meta     `path:"/lesson/list" method:"get" tags:"课程" summary:"获取课程列表"`
+	CategoryId int64  `json:"categoryId" dc:"分类ID"`
+	Tag        string `json:"tag" dc:"标签"`
 }
 
 // 获取课程列表响应

server/internal/controller/api/lesson/lesson_v1_lesson_list.go

@@ -12,17 +12,29 @@ import (
 )
 
 func (c *ControllerV1) LessonList(ctx context.Context, req *v1.LessonListReq) (res *v1.LessonListRes, err error) {
+	// 构建查询条件
+	query := dao.Lesson.Ctx(ctx)
+
+	// 按分类ID过滤
+	if req.CategoryId > 0 {
+		query = query.Where("category_id = ?", req.CategoryId)
+	}
+
+	// TODO 按标签过滤
+
 	// 查询课程列表
 	var list []*entity.Lesson
-	err = dao.Lesson.Ctx(ctx).Scan(&list)
+	err = query.Scan(&list)
 	if err != nil {
 		return nil, gerror.NewCode(gcode.CodeDbOperationError, "数据库错误")
 	}
+
 	// 统计总数
-	total, err := dao.Lesson.Ctx(ctx).Count()
+	total, err := query.Count()
 	if err != nil {
 		return nil, gerror.NewCode(gcode.CodeDbOperationError, "统计总数失败")
 	}
+
 	res = &v1.LessonListRes{
 		List:  list,
 		Total: total,