public async Task <IActionResult> List()
{
if (WikiListCaches != null && WikiListCaches.Item1.AddMinutes(5) > DateTime.Now)
{
return(Json(WikiListCaches.Item2));
}
List <WikiPassageDto> wikiPassageDtos = this._wikiPassageService.ListDtos();
List <WikiListItemDto> wikiListItems = new List <WikiListItemDto>();
foreach (WikiPassageDto item in wikiPassageDtos)
{
WikiListItemDto dto = new WikiListItemDto();
dto.Id = item.Id;
dto.Title = item.Title;
dto.Description = await this._wikiPassageService.PickDescriptionFromContent(item.Content);
dto.RoutePath = item.RoutePath;
dto.CoverUrl = await this._wikiPassageService.PickCoverUrlFromContentFirstImage(item.Content);
wikiListItems.Add(dto);
}
//Cache
WikiListController.WikiListCaches = new Tuple <DateTime, List <WikiListItemDto> >(DateTime.Now, wikiListItems);
return(Json(wikiListItems));
}
/// 列出所有文章的概述。
///
/// 注意：
/// 包含文章标题、概述、封面图链接等。
/// <param name="isContainLastModifyUserInfo">是否包含文章的作者信息</param>
/// <param name="neverReadFromCache">是否立即从数据库中执行统计。设置为 false，则自动按照缓存策略决定返回的数据来自于缓存还是数据库。</param>
/// <returns></returns>
public virtual async Task <List <WikiListItemDto> > ListAllPassageGenerals(bool readFromDatabaseImmediately = false)
{
if (!readFromDatabaseImmediately)
{
if (WikiListCaches != null && WikiListCaches.Item1.AddMinutes(5) > DateTime.Now)
{
return(WikiListCaches.Item2);
}
}
List <WikiPassage> wikiPassageDtos = List();
List <WikiListItemDto> wikiListItems = new List <WikiListItemDto>();
foreach (WikiPassage item in wikiPassageDtos)
{
WikiListItemDto dto = new WikiListItemDto();
dto.Id = item.Id;
dto.Title = item.Title;
dto.Description = await PickDescriptionFromContent(item.Content);
dto.RoutePath = item.RoutePath;
dto.CoverUrl = await PickCoverUrlFromContentFirstImage(item.Content);
dto.LastModifyDate = item.LastModifyDate.ToString("yyyy-MM-dd HH:mm:ss");
dto.LastModifyUser = new UserInfoDto {
Id = item.LastModifyUserId
};
wikiListItems.Add(dto);
}
//Cache
WikiPassageService.WikiListCaches = new Tuple <DateTime, List <WikiListItemDto> >(DateTime.Now, wikiListItems);
return(wikiListItems);
}
private async Task <WikiListItemDto> CovertToWikiListModel(WikiPassage wikiPassage)
{
WikiListItemDto dto = new WikiListItemDto();
dto.Id = wikiPassage.Id;
dto.Title = wikiPassage.Title;
dto.Description = await PickDescriptionFromContent(wikiPassage.Content);
dto.RoutePath = wikiPassage.RoutePath;
dto.CoverUrl = await PickCoverUrlFromContentFirstImage(wikiPassage.Content);
dto.LastModifyDate = wikiPassage.LastModifyDate.ToString("yyyy-MM-dd HH:mm:ss");
dto.LastModifyUser = new UserInfoDto {
Id = wikiPassage.LastModifyUserId
};
dto.TotalViewsCount = wikiPassage.TotalViewsCount;
return(dto);
}