fix test and comment

Author: wxiaoguang

models/issues/issue_search.go

@@ -369,6 +369,8 @@ func applyAssigneeCondition(sess *xorm.Session, assigneeID string) {
 }
 
 func applyPosterCondition(sess *xorm.Session, posterID string) {
+	// Actually every issue has a poster.
+	// The "(none)" is for internal usage only: when doer tries to search non-existing user as poster, use "(none)" to return empty result.
 	if posterID == "(none)" {
 		sess.And("issue.poster_id=0")
 	} else if posterIDInt64, _ := strconv.ParseInt(posterID, 10, 64); posterIDInt64 > 0 {

modules/indexer/issues/internal/tests/tests.go

@@ -379,7 +379,7 @@ var cases = []*testIndexerCase{
 			Paginator: &db.ListOptions{
 				PageSize: 5,
 			},
-			PosterID: optional.Some(int64(1)),
+			PosterID: "1",
 		},
 		Expected: func(t *testing.T, data map[int64]*internal.IndexerData, result *internal.SearchResult) {
 			assert.Len(t, result.Hits, 5)
@@ -397,7 +397,7 @@ var cases = []*testIndexerCase{
 			Paginator: &db.ListOptions{
 				PageSize: 5,
 			},
-			AssigneeID: optional.Some(int64(1)),
+			AssigneeID: "1",
 		},
 		Expected: func(t *testing.T, data map[int64]*internal.IndexerData, result *internal.SearchResult) {
 			assert.Len(t, result.Hits, 5)
@@ -415,7 +415,7 @@ var cases = []*testIndexerCase{
 			Paginator: &db.ListOptions{
 				PageSize: 5,
 			},
-			AssigneeID: optional.Some(int64(0)),
+			AssigneeID: "(none)",
 		},
 		Expected: func(t *testing.T, data map[int64]*internal.IndexerData, result *internal.SearchResult) {
 			assert.Len(t, result.Hits, 5)
@@ -650,7 +650,7 @@ var cases = []*testIndexerCase{
 	{
 		Name: "SearchAnyAssignee",
 		SearchOptions: &internal.SearchOptions{
-			AnyAssigneeOnly: true,
+			AssigneeID: "(any)",
 		},
 		Expected: func(t *testing.T, data map[int64]*internal.IndexerData, result *internal.SearchResult) {
 			assert.Len(t, result.Hits, 180)

routers/web/shared/user/helper.go

@@ -44,6 +44,7 @@ func GetFilterUserIDByName(ctx context.Context, name string) string {
 		if id, err := strconv.ParseInt(name, 10, 64); err == nil {
 			return strconv.FormatInt(id, 10)
 		}
+		// The "(none)" is for internal usage only: when doer tries to search non-existing user, use "(none)" to return empty result.
 		return "(none)"
 	}
 	return strconv.FormatInt(u.ID, 10)