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This commit is contained in:
John Cardinal
2018-09-20 18:01:42 +00:00
parent 0567b8eb42
commit ac75142b01
1 changed files with 53 additions and 14 deletions
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65
server/AyaNova/biz/Search.cs
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@@ -113,6 +113,9 @@ namespace AyaNova.Biz
{
List<SearchResult> ResultList = new List<SearchResult>();
//list to hold temporary search/tag hits
List<AyaTypeId> MatchingObjects = new List<AyaTypeId>();
if (!searchParameters.IsValid)
{
throw new System.ArgumentException("Search::DoSearch - Search request parameters must contain a phrase or tags");
@@ -185,14 +188,47 @@ namespace AyaNova.Biz
//Trigger the search
SearchKeyMatches = await q.ToListAsync();
//PUT THE RESULTS INTO MATCHING OBJECTS LIST
foreach (SearchKey SearchKeyMatch in SearchKeyMatches)
{
MatchingObjects.Add(new AyaTypeId(SearchKeyMatch.ObjectType, SearchKeyMatch.ObjectId));
}
//IF TAGS SPECIFIED
if (searchParameters.Tags.Count > 0)
{
if (string.IsNullOrWhiteSpace(searchParameters.Phrase))
{
//It's a tags only search so tags are inclusive
//QUERY FOR ALL TAGMAPS THAT MATCH OBJECT TYPE AND ID
//TODO: this
//TAGS ONLY SEARCH (NO PHRASE) ALL FULL MATCHES ARE INCLUSIVE
Dictionary<long, long> TagCounts = new Dictionary<long, long>();
//QUERY FOR ALL TAGMAPS THAT MATCH OBJECT TYPE AND ID FOR EVERY TAG SPECIFIED (UNION)
//var tagmatches= await ct.TagMap.Where(m => ).Select(m => m.Id).ToListAsync();
//algorithm:
//1) get counts for each tag specified from tagmap, if any are zero then none match and can bail early
foreach (long SearchTagId in searchParameters.Tags)
{
var SearchTagCount = await ct.TagMap.Where(m => m.TagId == SearchTagId).LongCountAsync();
//zero tags matching here at any point means no results for the entire search and we can bail
if (SearchTagCount == 0)
{
//return empty resultlist
return ResultList;
}
//Save the matching count
TagCounts.Add(SearchTagId,SearchTagCount);
}
//2) find smallest count match, fetch the entire list of tagmaps for that term so we are working with the shortest list first
var ShortestMatchingTag = TagCounts.OrderBy(x => x.Value).First().Key;
//3) Generate the shortlist of items that match the shortest tag list, then iterate the shortlist and see if each item matches all other tags specified if it does then put it into the matching objects list for return
//now iterate it and keep each item that matches all other tags
}
else
@@ -206,20 +242,23 @@ namespace AyaNova.Biz
}
}
foreach (SearchKey SearchKeyMatch in SearchKeyMatches)
{
SearchResult SR = new SearchResult();
SR.Name = BizObjectNameFetcher.Name(SearchKeyMatch.ObjectType, SearchKeyMatch.ObjectId, ct);
SR.Id = SearchKeyMatch.ObjectId;
SR.Type = SearchKeyMatch.ObjectType;
ResultList.Add(SR);
}
//REMOVE ANY ITEMS THAT USER IS NOT PERMITTED TO READ
//TODO: this
//amost ready to return, now populate the return list
//TODO: change this to use MatchingObjects list instead
// foreach (SearchKey SearchKeyMatch in SearchKeyMatches)
// {
// SearchResult SR = new SearchResult();
// SR.Name = BizObjectNameFetcher.Name(SearchKeyMatch.ObjectType, SearchKeyMatch.ObjectId, ct);
// SR.Id = SearchKeyMatch.ObjectId;
// SR.Type = SearchKeyMatch.ObjectType;
// ResultList.Add(SR);
// }
return ResultList;
}