public ArticlePageInfo QueryArticleByPage(QueryArticleParam param)
{
if (!File.Exists(ListFile))
{
return new ArticlePageInfo {
NextPage = false, List = new List <ArticleDetail>()
}
}
;
var list = File.ReadAllLines(ListFile).Where(i => !string.IsNullOrEmpty(i)).ToArray();
if (list.Length < pageSize * param.Page)
{
return new ArticlePageInfo {
NextPage = false, List = new List <ArticleDetail>()
}
}
;
return(new ArticlePageInfo
{
List = list.Skip(pageSize * param.Page).Take(pageSize).Select(id => FindArticleById(Guid.Parse(id))).Where(a => a != null).ToList(),
NextPage = list.Length < (pageSize * param.Page + 1)
});
}
public IActionResult Index(QueryArticleParam param)
{
var pageInfo = _articleApplicationService.QueryArticleByPage(param);
pageInfo.List.ForEach(a => { if (a.Content != null && a.Content.Length > 255)
{
a.Content = a.Content.Substring(0, 255);
}
});
return(Json(pageInfo));
}
public ArticlePageInfo QueryArticleByPage(QueryArticleParam param)
{
var pageInfo = new ArticlePageInfo()
{
List = new List <ArticleDetail>()
};
var pageSize = int.Parse(_config["PageSize"] ?? "20");
var skip = (param.Page - 1) * pageSize;
skip = Math.Max(0, skip);
skip = (int)Math.Min(Math.Ceiling(_articleDetails.Count / (double)param.Page), skip);
var queryList = _articleDetails.Where(a => a.State != ArticleDetailState.Deleted).ToList();
var count = queryList.Count();
if (count < (param.Page - 1) * pageSize)
{
return(pageInfo);
}
queryList = queryList.Skip(skip).Take(pageSize + 1).ToList();
if (queryList.Count > pageSize)
{
queryList.RemoveAt(pageSize - 1);
pageInfo.NextPage = true;
}
pageInfo.List = queryList.Select(data => new ArticleDetail()
{
Id = data.Id,
Title = data.Title,
Content = data.Content,
CategoryId = data.CategoryId,
State = data.State,
Tags = data.Tags,
CreateDate = data.CreateDate
}).ToList();
return(pageInfo);
}
public ArticlePageInfo QueryArticleByPage(QueryArticleParam param)
{
return(_articleQueryService.QueryArticleByPage(param));
}
