diff --git a/modules/file/file.class.php b/modules/file/file.class.php
index 4041aeb12..7bea137ce 100644
--- a/modules/file/file.class.php
+++ b/modules/file/file.class.php
@@ -38,8 +38,19 @@ class file extends ModuleObject
 	 */
 	function checkUpdate()
 	{
-		$oDB = &DB::getInstance();
+		$oDB = DB::getInstance();
 		$oModuleModel = getModel('module');
+
+		if($oModuleModel->getTrigger('document.insertDocument', 'file', 'controller', 'triggerCheckAttached', 'before')) return true;
+		if($oModuleModel->getTrigger('document.insertDocument', 'file', 'controller', 'triggerAttachFiles', 'after')) return true;
+		if($oModuleModel->getTrigger('document.updateDocument', 'file', 'controller', 'triggerCheckAttached', 'before')) return true;
+		if($oModuleModel->getTrigger('document.updateDocument', 'file', 'controller', 'triggerAttachFiles', 'after')) return true;
+		
+		if($oModuleModel->getTrigger('comment.insertComment', 'file', 'controller', 'triggerCommentCheckAttached', 'before')) return true;
+		if($oModuleModel->getTrigger('comment.insertComment', 'file', 'controller', 'triggerCommentAttachFiles', 'after')) return true;
+		if($oModuleModel->getTrigger('comment.updateComment', 'file', 'controller', 'triggerCommentCheckAttached', 'before')) return true;
+		if($oModuleModel->getTrigger('comment.updateComment', 'file', 'controller', 'triggerCommentAttachFiles', 'after')) return true;
+		
 		// 2007. 10. 17 Create a trigger to insert, update, delete documents and comments
 		if(!$oModuleModel->getTrigger('document.deleteDocument', 'file', 'controller', 'triggerDeleteAttached', 'after')) return true;
 		if(!$oModuleModel->getTrigger('comment.deleteComment', 'file', 'controller', 'triggerCommentDeleteAttached', 'after')) return true;
@@ -111,9 +122,51 @@ class file extends ModuleObject
 	 */
 	function moduleUpdate()
 	{
-		$oDB = &DB::getInstance();
+		$oDB = DB::getInstance();
 		$oModuleModel = getModel('module');
+		/** @var moduleController $oModuleController */
 		$oModuleController = getController('module');
+
+		if($oModuleModel->getTrigger('document.insertDocument', 'file', 'controller', 'triggerCheckAttached', 'before'))
+		{
+			$oModuleController->deleteTrigger('document.insertDocument', 'file', 'controller', 'triggerCheckAttached', 'before');
+		}
+
+		if($oModuleModel->getTrigger('document.insertDocument', 'file', 'controller', 'triggerAttachFiles', 'after'))
+		{
+			$oModuleController->deleteTrigger('document.insertDocument', 'file', 'controller', 'triggerAttachFiles', 'after');
+		}
+
+		if($oModuleModel->getTrigger('document.updateDocument', 'file', 'controller', 'triggerCheckAttached', 'before'))
+		{
+			$oModuleController->deleteTrigger('document.updateDocument', 'file', 'controller', 'triggerCheckAttached', 'before');
+		}
+
+		if($oModuleModel->getTrigger('document.updateDocument', 'file', 'controller', 'triggerAttachFiles', 'after'))
+		{
+			$oModuleController->deleteTrigger('document.updateDocument', 'file', 'controller', 'triggerAttachFiles', 'after');
+		}
+
+		if($oModuleModel->getTrigger('comment.insertComment', 'file', 'controller', 'triggerCommentCheckAttached', 'before'))
+		{
+			$oModuleController->deleteTrigger('comment.insertComment', 'file', 'controller', 'triggerCommentCheckAttached', 'before');
+		}
+
+		if($oModuleModel->getTrigger('comment.insertComment', 'file', 'controller', 'triggerCommentAttachFiles', 'after'))
+		{
+			$oModuleController->deleteTrigger('comment.insertComment', 'file', 'controller', 'triggerCommentAttachFiles', 'after');
+		}
+
+		if($oModuleModel->getTrigger('comment.updateComment', 'file', 'controller', 'triggerCommentCheckAttached', 'before'))
+		{
+			$oModuleController->deleteTrigger('comment.updateComment', 'file', 'controller', 'triggerCommentCheckAttached', 'before');
+		}
+
+		if($oModuleModel->getTrigger('comment.updateComment', 'file', 'controller', 'triggerCommentAttachFiles', 'after'))
+		{
+			$oModuleController->deleteTrigger('comment.updateComment', 'file', 'controller', 'triggerCommentAttachFiles', 'after');
+		}
+		
 		// 2007. 10. 17 Create a trigger to insert, update, delete documents and comments
 		if(!$oModuleModel->getTrigger('document.deleteDocument', 'file', 'controller', 'triggerDeleteAttached', 'after'))
 			$oModuleController->insertTrigger('document.deleteDocument', 'file', 'controller', 'triggerDeleteAttached', 'after');