优化mongo，封装count逻辑，处理objectId

service/advertiser_service.go

@@ -2,7 +2,6 @@ package service
 
 import (
 	"context"
-	"time"
 
 	"github.com/gogf/gf/v2/errors/gerror"
 	"github.com/gogf/gf/v2/util/gconv"
@@ -23,15 +22,10 @@ func (s *advertiser) Add(ctx context.Context, req *dto.AddAdvertiserReq) (res *d
 		return
 	}
 
-	// 设置基础字段
-	now := time.Now()
-	advertiser.CreatedAt = now
-	advertiser.UpdatedAt = now
-	advertiser.IsDeleted = false
-
 	// 设置初始状态
 	advertiser.Status = "待审核"
 
+	// 注意：CreatedAt、UpdatedAt、TenantId、IsDeleted等字段由common/mongo的Insert方法自动设置
 	if err = dao.Advertiser.Insert(ctx, advertiser); err != nil {
 		return
 	}