get channel id for bookmark files in ES/OS (#28221)

Co-authored-by: Miguel de la Cruz <mgdelacroix@gmail.com>

server/channels/store/searchlayer/file_info_layer.go

@@ -20,16 +20,25 @@ func (s SearchFileInfoStore) indexFile(rctx request.CTX, file *model.FileInfo) {
 	for _, engine := range s.rootStore.searchEngine.GetActiveEngines() {
 		if engine.IsIndexingEnabled() {
 			runIndexFn(rctx, engine, func(engineCopy searchengine.SearchEngineInterface) {
-				if file.PostId == "" {
+				if file.PostId == "" && file.CreatorId != model.BookmarkFileOwner {
 					return
 				}
-				post, postErr := s.rootStore.Post().GetSingle(rctx, file.PostId, false)
-				if postErr != nil {
-					rctx.Logger().Error("Couldn't get post for file for SearchEngine indexing.", mlog.String("post_id", file.PostId), mlog.String("search_engine", engineCopy.GetName()), mlog.String("file_info_id", file.Id), mlog.Err(postErr))
+				channelId := file.ChannelId
+				if file.PostId != "" {
+					post, postErr := s.rootStore.Post().GetSingle(rctx, file.PostId, false)
+					if postErr != nil {
+						rctx.Logger().Error("Couldn't get post for file for SearchEngine indexing.", mlog.String("post_id", file.PostId), mlog.String("search_engine", engineCopy.GetName()), mlog.String("file_info_id", file.Id), mlog.Err(postErr))
+						return
+					}
+					channelId = post.ChannelId
+				}
+
+				if channelId == "" {
+					rctx.Logger().Error("Couldn't associate file with a channel for file for SearchEngine indexing.", mlog.String("search_engine", engineCopy.GetName()), mlog.String("file_info_id", file.Id))
 					return
 				}
 
-				if err := engineCopy.IndexFile(file, post.ChannelId); err != nil {
+				if err := engineCopy.IndexFile(file, channelId); err != nil {
 					rctx.Logger().Error("Encountered error indexing file", mlog.String("file_info_id", file.Id), mlog.String("search_engine", engineCopy.GetName()), mlog.Err(err))
 					return
 				}

server/channels/store/searchtest/file_info_layer.go

@@ -191,7 +191,7 @@ var searchFileInfoStoreTests = []searchTest{
 	{
 		Name: "Should search files part of channel bookmarks",
 		Fn:   testFileInfoSearchShowChannelBookmarkFiles,
-		Tags: []string{EnginePostgres, EngineMySQL},
+		Tags: []string{EnginePostgres, EngineMySQL, EngineElasticSearch},
 	},
 }