public SinglePost GetPost(int postId)
//try to get a particular post, q or a
//returns null if post not found
//use SinglePost.Id for annotations
//use SinglePost.QuestionId to get the thread the post belongs to
{
SinglePost returnPost = new SinglePost();
var type = GetPostType(postId);
if (type == "questions") //then its a question
{
var q = GetQuestion(postId);
returnPost.Body = q.Body;
returnPost.Id = postId;
returnPost.QuestionId = q.Id;
returnPost.Title = q.Title;
return(returnPost);
}
else if (type == "answers") //then its an answer
{
var a = GetAnswer(postId);
returnPost.Body = a.Body;
returnPost.Id = postId;
returnPost.QuestionId = GetAnswer(postId).Parentid; //get parent q of answer
returnPost.Title = GetQuestion(returnPost.QuestionId).Title; //get title of parent q
return(returnPost);
}
else
{
return(null); //else its unknown!
}
}
public IList <Posts> Search(int userid, string searchstring, int?searchtypecode, PagingAttributes pagingAttributes)
{
////// for performing searches with appsearch on the db
///
// do actual search using appsearch in db and build results
//need db context and searchtype lookuptable
using var db = new DatabaseContext();
Modules.SearchTypeLookupTable st = new Modules.SearchTypeLookupTable();
////get params for db.func
///
//build searchstring
var search = new NpgsqlParameter("search", NpgsqlTypes.NpgsqlDbType.Text)
{
Value = BuildSearchString(searchstring, false)
};
//lookup searchtype string
var searchtype = new NpgsqlParameter("searchtype", NpgsqlTypes.NpgsqlDbType.Text);
if (searchtypecode >= 0 && searchtypecode <= 3)
{
searchtype.Value = st.searchType[searchtypecode.Value];
}
else
{
searchtype.Value = st.searchType[3];
}
//userid
var appuserid = new NpgsqlParameter("appuserid", NpgsqlTypes.NpgsqlDbType.Integer)
{
Value = userid
};
//if internal call is specified, stored function appsearch won't add to searches/searchhistory
var internalcall = new NpgsqlParameter("internalcall", NpgsqlTypes.NpgsqlDbType.Boolean)
{
Value = true
};
//count all matches
var matchcount = db.Search
.FromSqlRaw("select appsearch(@appuserid, @searchtype, @search, @internalcall)", appuserid, searchtype, search, internalcall)
.Count();
System.Console.WriteLine($"{matchcount} results.");
int page = _sharedService.GetPagination(matchcount, pagingAttributes);
System.Console.WriteLine($"{page} page trying to get.");
//get subset of results according to pagesize etc
var resultlist = db.Search
.FromSqlRaw("SELECT * from appsearch(@appuserid, @searchtype, @search)", appuserid, searchtype, search)
.Skip(page * pagingAttributes.PageSize)
.Take(pagingAttributes.PageSize)
.ToList();
//build and map results to posts
var resultposts = new List <Posts>();
foreach (Search s in resultlist)
{
Posts p = new Posts();
SinglePost sp = new SinglePost();
sp = _sharedService.GetPost(s.postid);
p.Parentid = sp.QuestionId;
p.Id = sp.Id;
var endpos = 100;
if (sp.Body.Length < 100)
{
endpos = sp.Body.Length;
}
p.Body = sp.Body.Substring(0, endpos);
p.Title = _sharedService.GetQuestion(p.Parentid).Title;
p.Totalresults = matchcount;
p.Rank = s.rank;
resultposts.Add(p);
}
return(resultposts);
}
