public user GetUserByIndexAsync(string index)
{
using (EFDbFactory db = new EFDbFactory())
{
return(db.user.Where(w => w.index == index).FirstOrDefault());
}
}
/// <summary>
/// 查询最新发布的文章列表
/// </summary>
/// <param name="userId">用户编号</param>
/// <param name="number">获取条数</param>
public IList <NewsListDTO> GetLasNewsList(int?userId, int number)
{
using (EFDbFactory db = new EFDbFactory())
{
var query = from n in db.news
join u in db.user on n.user_id equals u.id
join c in db.category on n.category_id equals c.id into temp
from tt in temp.DefaultIfEmpty()
select new NewsListDTO
{
id = n.id,
title = n.title,
description = n.description,
image = n.image,
userName = u.name,
categoryName = tt.name,
number = n.number,
goodNumber = n.good_number,
createDateTime = n.create_date_time
};
List <NewsListDTO> list = query.OrderByDescending(w => w.id).Take(number).ToList();
foreach (var item in list)
{
var itemQuery = from nt in db.news_tag
join t in db.tag on nt.tag_id equals t.id
where nt.news_id == item.id
select t;
item.tag = itemQuery.ToList();
}
return(list);
}
}
/// <summary>
/// 根据用户编号获取用户信息
/// </summary>
/// <param name="id">用户编号</param>
/// <returns></returns>
public user Get(int id)
{
using (EFDbFactory db = new EFDbFactory())
{
return(db.user.Find(id));
}
}
public IList <blog_template> GetBlogTemplateList()
{
using (EFDbFactory db = new EFDbFactory())
{
return(db.blog_template.ToList());
}
}
public NewsDetailDTO GetNewsDetail(int userId, int id)
{
using (EFDbFactory db = new EFDbFactory())
{
var query = from n in db.news
join u in db.user on n.user_id equals u.id
join c in db.category on n.category_id equals c.id into temp
from tt in temp.DefaultIfEmpty()
where n.id == id && n.user_id == userId
select new NewsDetailDTO
{
id = n.id,
title = n.title,
description = n.description,
userName = u.name,
categoryName = tt.name,
number = n.number,
goodNumber = n.good_number,
createDateTime = n.create_date_time,
Content = n.content
};
NewsDetailDTO newsDTO = query.FirstOrDefault();
if (newsDTO != null)
{
var newsQuery = from nt in db.news_tag
join t in db.tag on nt.tag_id equals t.id
where nt.news_id == newsDTO.id
select t;
newsDTO.tag = newsQuery.ToList();
}
return(newsDTO);
}
}
public IList <news> GetSpecialRecommendNewsList(int userId, int number)
{
using (EFDbFactory db = new EFDbFactory())
{
return(db.news.Where(w => w.user_id == userId && w.special_recommended == 1)
.OrderByDescending(w => w.sort)
.ThenByDescending(w => w.id).Take(number).ToList());
}
}
/// <summary>
/// 更新文章点击率
/// </summary>
/// <param name="id">文章编号</param>
public void UpdateClickNumber(int id)
{
using (EFDbFactory db = new EFDbFactory())
{
news entity = db.news.Find(id);
entity.number += 1;
db.news.Update(entity);
db.SaveChanges();
}
}
public blog_template GetUserBlogTemplate(int userId)
{
using (EFDbFactory db = new EFDbFactory())
{
var query = from ubtr in db.user_blog_template_record
join bt in db.blog_template on ubtr.blog_template_id equals bt.id
where ubtr.user_id == userId
select bt;
return(query.FirstOrDefault());
}
}
/// <summary>
/// 根据编号获取一条文章信息
/// </summary>
/// <param name="id">文章编号</param>
/// <returns></returns>
public news Get(int id, int?userId)
{
using (EFDbFactory db = new EFDbFactory())
{
if (userId != null)
{
return(db.news.Where(w => w.id == id && w.user_id == userId).First());
}
return(db.news.Find(id));
}
}
/// <summary>
/// 查询文章标签
/// </summary>
/// <param name="id">文章编号</param>
/// <returns></returns>
public IList <tag> GetNewsTagList(int id)
{
using (EFDbFactory db = new EFDbFactory())
{
IQueryable <tag> query = from nt in db.news_tag
join t in db.tag on nt.tag_id equals t.id
where nt.news_id == id
select t;
return(query.ToList());
}
}
/// <summary>
/// 查询点击排行文章列表
/// </summary>
/// <param name="userId">用户编号</param>
/// <param name="number">获取条数</param>
public IList <news> GetTopNewsList(int?userId, int number)
{
using (EFDbFactory db = new EFDbFactory())
{
IQueryable <news> query = db.news;
if (userId != null)
{
query.Where(w => w.user_id == userId);
}
return(query.OrderByDescending(w => w.number).Take(number).ToList());
}
}
/// <summary>
/// 查询推荐栏目文章列表
/// </summary>
/// <param name="userId">用户编号</param>
/// <param name="number">查询条数</param>
/// <returns></returns>
public IList <news> GetRecommendNewsList(int?userId, int number)
{
using (EFDbFactory db = new EFDbFactory())
{
IQueryable <news> query = db.news;
if (userId != null)
{
query.Where(w => w.user_id == userId);
}
return(query.Where(w => w.recommended == 1)
.OrderByDescending(w => w.sort)
.ThenByDescending(w => w.id).Take(number).ToList());
}
}
/// <summary>
/// 获取文章列表
/// </summary>
/// <param name="pageSize">每页大小</param>
/// <param name="page">当前页码</param>
/// <param name="userId">用户编号</param>
/// <param name="type">文章类型</param>
/// <returns></returns>
public Pager GetNewsListPage(int pageSize, int page, int userId, string type)
{
Pager pager = new Pager();
pager.pageSize = pageSize;
pager.page = page;
using (EFDbFactory db = new EFDbFactory())
{
var count = db.news.Where(w => w.user_id == userId).OrderByDescending(w => w.id).Count();
pager.total = count;
var query = from n in db.news
join u in db.user on n.user_id equals u.id
join c in db.category on n.category_id equals c.id
where (string.IsNullOrEmpty(type) || c.code == type)
select new NewsListDTO
{
id = n.id,
title = n.title,
description = n.description,
image = n.image,
userName = u.name,
categoryName = c.name,
number = n.number,
goodNumber = n.good_number,
createDateTime = n.create_date_time
};
List <NewsListDTO> list = query.OrderByDescending(w => w.id).Skip((page - 1) * pageSize).Take(pageSize).ToList();
foreach (var item in list)
{
var itemQuery = from nt in db.news_tag
join t in db.tag on nt.tag_id equals t.id
where nt.news_id == item.id
select t;
item.tag = itemQuery.ToList();
}
pager.rows = list;
return(pager);
}
}
/// <summary>
/// 相关文章列表
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public IList <news> GetRelevantArticlesList(int?userId, int id, int number)
{
using (EFDbFactory db = new EFDbFactory())
{
//查询该类别文章
news newsEntity = db.news.Find(id);
if (newsEntity != null)
{
//查询该文章类别相关文章列表
IQueryable <news> quuery = db.news.Where(w => w.category_id == newsEntity.category_id);
if (userId != null)
{
quuery.Where(w => w.user_id == userId);
}
return(quuery.OrderByDescending(w => w.id).Take(number).ToList());
}
else
{
return(new List <news>());
}
}
}
/// <summary>
/// 上一篇，下一篇文章
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public IList <news> GetPerNextNews(int?userId, int id)
{
using (EFDbFactory db = new EFDbFactory())
{
IQueryable <news> perQuery = db.news.Where(w => w.id < id);
var nextQuery = db.news.Where(w => w.id > id);
if (userId != null)
{
perQuery.Where(w => w.user_id == userId);
nextQuery.Where(w => w.user_id == userId);
}
//上一篇
news perEntity = perQuery.OrderByDescending(w => w.id).FirstOrDefault();
//下一篇
news nextEntity = nextQuery.FirstOrDefault();
IList <news> list = new List <news>();
list.Add(perEntity);
list.Add(nextEntity);
return(list);
}
}
