refactor: lesson plan return value.

controllers/lesson_plan.go

@@ -36,6 +36,11 @@ type LessonPlanController struct {
 type lessonPlanPaginationParams struct {
 	PageNum      int    `form:"pageNum,default=1"`
 	PageSize     int    `form:"pageSize,default=10"`
+	Keyword      string `form:"keyword"`      // 文件名模糊搜索
+	UploaderName string `form:"uploaderName"` // 上传者名模糊搜索
+	RegionID     uint32 `form:"regionId"`     // 按幼儿园(区域)筛选
+	SortBy       string `form:"sortBy"`       // file_size | created_at
+	SortOrder    string `form:"sortOrder"`    // asc | desc
 }
 
 type lessonPlanShareCodeResponse struct {
@@ -192,20 +197,112 @@ func (lc *LessonPlanController) Page(c *gin.Context) {
 	var total int64
 	var records []models.AppFile
 	query := lc.DB.Model(&models.AppFile{}).Where("file_type = ?", models.AppFileTypeLessonPlan)
+
+	// 角色权限过滤
 	if role != models.UserRoleSuperAdmin && role != models.UserRoleRegionAdmin {
 		query = query.Where("uploader_id = ?", userID)
 	}
+
+	// 文件名模糊搜索
+	if params.Keyword != "" {
+		query = query.Where("original_filename LIKE ?", "%"+params.Keyword+"%")
+	}
+
+	// 上传者名模糊搜索
+	if params.UploaderName != "" {
+		query = query.Where("uploader_name LIKE ?", "%"+params.UploaderName+"%")
+	}
+
+	// 按区域(幼儿园)筛选：通过 user_region_bindings 查 uploader_id
+	if params.RegionID > 0 {
+		query = query.Where("uploader_id IN (SELECT user_id FROM user_region_bindings WHERE region_id = ?)", params.RegionID)
+	}
+
+	// 排序
+	orderClause := "created_at DESC"
+	if params.SortBy != "" {
+		switch params.SortBy {
+		case "file_size":
+			orderClause = "file_size"
+		case "created_at":
+			orderClause = "created_at"
+		}
+		if params.SortOrder == "asc" {
+			orderClause += " ASC"
+		} else {
+			orderClause += " DESC"
+		}
+	}
+
 	if err := query.Count(&total).Error; err != nil {
 		writeError(c, http.StatusInternalServerError, "failed to count lesson plans")
 		return
 	}
-	if err := query.Order("created_at DESC").Offset(offset).Limit(params.PageSize).Find(&records).Error; err != nil {
+	if err := query.Order(orderClause).Offset(offset).Limit(params.PageSize).Find(&records).Error; err != nil {
 		writeError(c, http.StatusInternalServerError, "failed to query lesson plans")
 		return
 	}
 
+	// 管理员可见所属幼儿园
+	isAdmin := role == models.UserRoleSuperAdmin || role == models.UserRoleRegionAdmin
+	type lessonPlanItem struct {
+		models.AppFile
+		KindergartenName string `json:"kindergartenName"`
+	}
+	items := make([]lessonPlanItem, len(records))
+	for i, r := range records {
+		items[i] = lessonPlanItem{AppFile: r}
+	}
+	if isAdmin && len(records) > 0 {
+		uploaderIDs := make([]uint, len(records))
+		for i, r := range records {
+			uploaderIDs[i] = r.UploaderID
+		}
+		type uploaderRegion struct {
+			UserID   uint
+			RegionID uint32
+		}
+		var bindings []uploaderRegion
+		if err := lc.DB.Table("user_region_bindings").
+			Select("user_id, region_id").
+			Where("user_id IN ?", uploaderIDs).
+			Scan(&bindings).Error; err != nil {
+			writeError(c, http.StatusInternalServerError, "failed to query user regions")
+			return
+		}
+		regionIDs := make([]uint32, len(bindings))
+		userRegionMap := make(map[uint]uint32, len(bindings))
+		for _, b := range bindings {
+			userRegionMap[b.UserID] = b.RegionID
+			regionIDs = append(regionIDs, b.RegionID)
+		}
+		type regionKindergarten struct {
+			RegionID uint32
+			Name     string
+		}
+		var kindergartens []regionKindergarten
+		if err := lc.DB.Table("kindergartens").
+			Select("region_id, name").
+			Where("region_id IN ?", regionIDs).
+			Scan(&kindergartens).Error; err != nil {
+			writeError(c, http.StatusInternalServerError, "failed to query kindergartens")
+			return
+		}
+		regionNameMap := make(map[uint32]string, len(kindergartens))
+		for _, k := range kindergartens {
+			regionNameMap[k.RegionID] = k.Name
+		}
+		for i, r := range records {
+			if rid, ok := userRegionMap[r.UploaderID]; ok {
+				if name, ok2 := regionNameMap[rid]; ok2 {
+					items[i].KindergartenName = name
+				}
+			}
+		}
+	}
+
 	writeSuccess(c, http.StatusOK, "query success", gin.H{
-		"list": records,
+		"list": items,
 		"pagination": gin.H{
 			"currentPage": params.PageNum,
 			"pageSize":    params.PageSize,