diff --git a/filemgr/filemgr.py b/filemgr/filemgr.py
index 840b209..084df54 100644
--- a/filemgr/filemgr.py
+++ b/filemgr/filemgr.py
@@ -21,7 +21,7 @@ def get_dbname():
 	return dbname
 
 class FileMgr:
-	async def add_file(request, params_kw):
+	async def add_file(self, request, params_kw):
 		fs = FileStorage()
 		webpath = params_kw.upfile
 		realpath = fs.realpath(wwebpath)
@@ -53,7 +53,7 @@ class FileMgr:
 			return True
 		return False
 	
-	async def del_file(request, fid):
+	async def del_file(self, request, fid):
 		db = DBPools()
 		dbname = get_dbname()
 		async with db.sqlorContext(dbname) as sor:
@@ -65,7 +65,7 @@ class FileMgr:
 				if not remain:
 					os.unlink(delrec.realpath)
 
-	async def has_sub(request, sor, folderid):
+	async def has_sub(self, request, sor, folderid):
 		sql = """select unique a.* from folder a 
     left join folder b on a.id = b.parentid 
     left join file c on a.id=c.folderid