fix version 1

module/social/group/internal/logic/basic/modify.go

@@ -10,7 +10,6 @@ import (
 	"git.apinb.com/bsm-sdk/core/errcode"
 	"git.apinb.com/bsm-sdk/core/printer"
 	"git.apinb.com/bsm-sdk/core/service"
-	"git.apinb.com/bsm-sdk/core/utils"
 	"git.apinb.com/bsm-sdk/core/vars"
 )
 
@@ -20,22 +19,49 @@ func Modify(ctx context.Context, in *pb.GroupItem) (reply *pb.DataStatusReply, e
 	if err != nil {
 		return nil, err
 	}
-
-	record := &models.GroupBasic{
-		Name:                 in.GetName(),
-		Introduce:            in.GetIntroduce(),
-		Avatar:               in.GetAvatar(),
-		Background:           in.GetBackground(),
-		Notice:               in.GetNotice(),
-		EnableSearchByNumber: in.GetEnableSearchByNumber(),
-		EnableSearchByName:   in.GetEnableSearchByName(),
+	if in.GetIdentity() == "" {
+		return nil, errcode.ErrInvalidArgument
 	}
-	record.Identity = utils.UUID()
 
-	err = impl.DBService.Where("identity=? and creator_id=?", in.Identity, auth.ID).UpdateColumns(record).Error
-	if err != nil {
+	// 校验群组存在，且操作者必须是创建者
+	var group models.GroupBasic
+	if err = impl.DBService.Where("identity=?", in.Identity).First(&group).Error; err != nil {
 		printer.Error(err.Error())
-		return nil, errcode.ErrDB
+		return nil, errcode.ErrRecordNotFound
+	}
+	if group.PassportID != auth.ID {
+		return nil, errcode.ErrPermissionDenied
+	}
+
+	// 仅更新请求中确实提供的字段，避免零值覆盖；同时不再改写群 identity
+	updates := map[string]any{}
+	if v := in.GetName(); v != "" {
+		updates["name"] = v
+	}
+	if v := in.GetIntroduce(); v != "" {
+		updates["introduce"] = v
+	}
+	if v := in.GetAvatar(); v != "" {
+		updates["avatar"] = v
+	}
+	if v := in.GetBackground(); v != "" {
+		updates["background"] = v
+	}
+	if v := in.GetNotice(); v != "" {
+		updates["notice"] = v
+	}
+	// 布尔字段无法区分「未传」与「false」，仅在为 true 时更新，避免误清空已有开关
+	if in.GetEnableSearchByNumber() {
+		updates["enable_search_by_number"] = true
+	}
+	if in.GetEnableSearchByName() {
+		updates["enable_search_by_name"] = true
+	}
+	if len(updates) > 0 {
+		if err = impl.DBService.Model(&models.GroupBasic{}).Where("identity=?", in.Identity).Updates(updates).Error; err != nil {
+			printer.Error(err.Error())
+			return nil, errcode.ErrDB
+		}
 	}
 
 	return &pb.DataStatusReply{