/// <summary>
/// 获取文章列表
/// </summary>
/// <param name="KeyWords"></param>
/// <param name="page"></param>
/// <param name="TagName"></param>
/// <returns></returns>
public static SharedPageVM UserWritingQuery(string KeyWords, int page, string TagName = "")
{
var vm = new SharedPageVM();
KeyWords ??= "";
var pag = new SharedPaginationVM
{
PageNumber = Math.Max(page, 1),
PageSize = 12
};
var dicQs = new Dictionary <string, string> {
{ "k", KeyWords }
};
IQueryable <UserWriting> query;
using var db = ContextBaseFactory.CreateDbContext();
if (!string.IsNullOrWhiteSpace(TagName))
{
query = from a in db.UserWritingTags.Where(x => x.TagName == TagName)
join b in db.UserWriting on a.UwId equals b.UwId
select b;
query = query.Distinct();
}
else
{
query = from a in db.UserWriting select a;
}
query = query.Where(x => x.UwOpen == 1 && x.UwStatus == 1);
if (!string.IsNullOrWhiteSpace(KeyWords))
{
var kws = new JiebaSegmenter().Cut(KeyWords).ToList();
kws.Add(KeyWords);
kws = kws.Distinct().ToList();
var inner = PredicateBuilder.New <UserWriting>();
switch (GlobalTo.TDB)
{
case SharedEnum.TypeDB.SQLite:
kws.ForEach(k => inner.Or(x => EF.Functions.Like(x.UwTitle, $"%{k}%")));
break;
case SharedEnum.TypeDB.PostgreSQL:
kws.ForEach(k => inner.Or(x => EF.Functions.ILike(x.UwTitle, $"%{k}%")));
break;
default:
kws.ForEach(k => inner.Or(x => x.UwTitle.Contains(k)));
break;
}
query = query.Where(inner);
}
pag.Total = query.Count();
query = query.OrderByDescending(x => x.UwId).Skip((pag.PageNumber - 1) * pag.PageSize).Take(pag.PageSize);
var list = query.ToList();
//文章ID
var listUwId = list.Select(x => x.UwId).ToList();
//文章的所有的标签
var queryTags = from a in db.UserWritingTags
join b in db.Tags on a.TagName equals b.TagName
where listUwId.Contains(a.UwId) || b.TagName == TagName
orderby a.UwtId ascending
select new
{
a.UwId,
a.TagName,
b.TagIcon
};
var listUwTags = queryTags.ToList();
//文章人员ID
var listUwUid = list.Select(x => x.UwLastUid).Concat(list.Select(x => x.Uid)).Distinct();
//文章人员ID对应的信息
var listUwUserInfo = db.UserInfo.Where(x => listUwUid.Contains(x.UserId)).Select(x => new { x.UserId, x.Nickname }).ToList();
//把信息赋值到文章表的备用字段上
foreach (var item in list)
{
//标签
item.Spare1 = listUwTags.Where(x => x.UwId == item.UwId).Select(x => new { x.TagName, x.TagIcon }).ToJson();
//写主昵称
item.Spare3 = listUwUserInfo.FirstOrDefault(x => x.UserId == item.Uid)?.Nickname;
//有回复
if (item.UwLastUid > 0)
{
//回复用户昵称
item.Spare2 = listUwUserInfo.FirstOrDefault(x => x.UserId == item.UwLastUid)?.Nickname;
}
}
vm.Rows = list;
vm.Pag = pag;
vm.QueryString = dicQs;
if (!string.IsNullOrWhiteSpace(TagName))
{
try
{
var jt = KeyValuesQuery(new List <string> {
TagName
}).FirstOrDefault()?.KeyValue.ToJObject();
if (jt != null)
{
var tags = new List <object>
{
new
{
TagName,
listUwTags.FirstOrDefault(x => x.TagName == TagName)?.TagIcon
}
};
vm.Temp = new
{
abs = new List <string>
{
jt["abstract"].ToString(),
jt["url"].ToString()
},
tags
}.ToJson();
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
return(vm);
}
