diff --git a/kernel/api/setting.go b/kernel/api/setting.go
index adb06a756..dea84ec12 100644
--- a/kernel/api/setting.go
+++ b/kernel/api/setting.go
@@ -326,6 +326,7 @@ func setEditor(c *gin.Context) {
 	model.Conf.Save()
 
 	if oldGenerateHistoryInterval != model.Conf.Editor.GenerateHistoryInterval {
+		model.GenerateFileHistory()
 		model.ChangeHistoryTick(editor.GenerateHistoryInterval)
 	}
 
diff --git a/kernel/model/file.go b/kernel/model/file.go
index c53f3d5eb..30954e2f8 100644
--- a/kernel/model/file.go
+++ b/kernel/model/file.go
@@ -187,8 +187,8 @@ func SearchDocsByKeyword(keyword string, flashcard bool, excludeIDs []string) (r
 			}
 		}
 
-		if 0 < len(excludeIDs) {
-			condition += fmt.Sprintf(" AND root_id NOT IN ('%s')", strings.Join(excludeIDs, "', '"))
+		for _, excludeID := range excludeIDs {
+			condition += fmt.Sprintf(" AND path NOT LIKE '%%%s%%' ", excludeID)
 		}
 
 		rootBlocks = sql.QueryRootBlockByCondition(condition, Conf.Search.Limit)
diff --git a/kernel/model/history.go b/kernel/model/history.go
index b9e64de58..7df9f9067 100644
--- a/kernel/model/history.go
+++ b/kernel/model/history.go
@@ -54,11 +54,11 @@ func AutoGenerateFileHistory() {
 	ChangeHistoryTick(Conf.Editor.GenerateHistoryInterval)
 	for {
 		<-historyTicker.C
-		task.AppendTask(task.HistoryGenerateFile, generateFileHistory)
+		task.AppendTask(task.HistoryGenerateFile, GenerateFileHistory)
 	}
 }
 
-func generateFileHistory() {
+func GenerateFileHistory() {
 	defer logging.Recover()
 
 	if 1 > Conf.Editor.GenerateHistoryInterval {