/// <summary>
 /// 获取前N个贴吧标签ID(TagInOwner类型)
 /// </summary>
 /// <param name="topNumber">前N个ID数量</param>
 /// <param name="sortBy">排序依据字段</param>
 /// <returns></returns>
 public IEnumerable<long> GetTopTagsForBar(int topNumber, SortBy_Tag? sortBy)
 {
     return barSectionRepository.GetTopTagsForBar(topNumber, sortBy);
 }
 public ActionResult _TopTopics(int topNum, bool? isFeatured, SortBy_Tag? sortby)
 {
     IEnumerable<Tag> topics = tagService.GetTopTags(topNum, isFeatured, sortby ?? SortBy_Tag.ItemCountDesc);
     return View(topics);
 }
 public ActionResult _TopGroupTopics(string spaceKey, int topNumber, SortBy_Tag? sortBy)
 {
     IEnumerable<Tag> tags = new List<Tag>();
     if (sortBy == SortBy_Tag.PreWeekItemCountDesc)
     {
         tags = new TagService(TenantTypeIds.Instance().Tag()).GetTopTags(topNumber, null, sortBy);
     }
     else
     {
         tags = tagService.GetTopTags(topNumber, null, sortBy ?? SortBy_Tag.DateCreatedDesc);
     }
     return View(tags);
 }