1 files changed, 37 insertions, 13 deletions

diff --git a/modules/indexer/issues/bleve/bleve.go b/modules/indexer/issues/bleve/bleve.go
index bf51bd6c14..39d96cab98 100644
--- a/modules/indexer/issues/bleve/bleve.go
+++ b/modules/indexer/issues/bleve/bleve.go
@@ -5,10 +5,14 @@ package bleve
 
 import (
 	"context"
+	"strconv"
 
+	"code.gitea.io/gitea/modules/indexer"
 	indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
 	inner_bleve "code.gitea.io/gitea/modules/indexer/internal/bleve"
 	"code.gitea.io/gitea/modules/indexer/issues/internal"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/util"
 
 	"github.com/blevesearch/bleve/v2"
 	"github.com/blevesearch/bleve/v2/analysis/analyzer/custom"
@@ -120,6 +124,10 @@ type Indexer struct {
 	indexer_internal.Indexer // do not composite inner_bleve.Indexer directly to avoid exposing too much
 }
 
+func (b *Indexer) SupportedSearchModes() []indexer.SearchMode {
+	return indexer.SearchModesExactWordsFuzzy()
+}
+
 // NewIndexer creates a new bleve local indexer
 func NewIndexer(indexDir string) *Indexer {
 	inner := inner_bleve.NewIndexer(indexDir, issueIndexerLatestVersion, generateIssueIndexMapping)
@@ -157,16 +165,24 @@ func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (
 	var queries []query.Query
 
 	if options.Keyword != "" {
-		fuzziness := 0
-		if options.IsFuzzyKeyword {
-			fuzziness = inner_bleve.GuessFuzzinessByKeyword(options.Keyword)
+		searchMode := util.IfZero(options.SearchMode, b.SupportedSearchModes()[0].ModeValue)
+		if searchMode == indexer.SearchModeWords || searchMode == indexer.SearchModeFuzzy {
+			fuzziness := 0
+			if searchMode == indexer.SearchModeFuzzy {
+				fuzziness = inner_bleve.GuessFuzzinessByKeyword(options.Keyword)
+			}
+			queries = append(queries, bleve.NewDisjunctionQuery([]query.Query{
+				inner_bleve.MatchAndQuery(options.Keyword, "title", issueIndexerAnalyzer, fuzziness),
+				inner_bleve.MatchAndQuery(options.Keyword, "content", issueIndexerAnalyzer, fuzziness),
+				inner_bleve.MatchAndQuery(options.Keyword, "comments", issueIndexerAnalyzer, fuzziness),
+			}...))
+		} else /* exact */ {
+			queries = append(queries, bleve.NewDisjunctionQuery([]query.Query{
+				inner_bleve.MatchPhraseQuery(options.Keyword, "title", issueIndexerAnalyzer, 0),
+				inner_bleve.MatchPhraseQuery(options.Keyword, "content", issueIndexerAnalyzer, 0),
+				inner_bleve.MatchPhraseQuery(options.Keyword, "comments", issueIndexerAnalyzer, 0),
+			}...))
 		}
-
-		queries = append(queries, bleve.NewDisjunctionQuery([]query.Query{
-			inner_bleve.MatchPhraseQuery(options.Keyword, "title", issueIndexerAnalyzer, fuzziness),
-			inner_bleve.MatchPhraseQuery(options.Keyword, "content", issueIndexerAnalyzer, fuzziness),
-			inner_bleve.MatchPhraseQuery(options.Keyword, "comments", issueIndexerAnalyzer, fuzziness),
-		}...))
 	}
 
 	if len(options.RepoIDs) > 0 || options.AllPublic {
@@ -232,12 +248,20 @@ func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (
 		queries = append(queries, inner_bleve.NumericEqualityQuery(options.ProjectColumnID.Value(), "project_board_id"))
 	}
 
-	if options.PosterID.Has() {
-		queries = append(queries, inner_bleve.NumericEqualityQuery(options.PosterID.Value(), "poster_id"))
+	if options.PosterID != "" {
+		// "(none)" becomes 0, it means no poster
+		posterIDInt64, _ := strconv.ParseInt(options.PosterID, 10, 64)
+		queries = append(queries, inner_bleve.NumericEqualityQuery(posterIDInt64, "poster_id"))
 	}
 
-	if options.AssigneeID.Has() {
-		queries = append(queries, inner_bleve.NumericEqualityQuery(options.AssigneeID.Value(), "assignee_id"))
+	if options.AssigneeID != "" {
+		if options.AssigneeID == "(any)" {
+			queries = append(queries, inner_bleve.NumericRangeInclusiveQuery(optional.Some[int64](1), optional.None[int64](), "assignee_id"))
+		} else {
+			// "(none)" becomes 0, it means no assignee
+			assigneeIDInt64, _ := strconv.ParseInt(options.AssigneeID, 10, 64)
+			queries = append(queries, inner_bleve.NumericEqualityQuery(assigneeIDInt64, "assignee_id"))
+		}
 	}
 
 	if options.MentionID.Has() {