diff --git a/sqlor/sor.py b/sqlor/sor.py
index 002dde5..47cb242 100755
--- a/sqlor/sor.py
+++ b/sqlor/sor.py
@@ -14,6 +14,8 @@ from appPublic.unicoding import uDict
 from appPublic.myTE import MyTemplateEngine
 from appPublic.objectAction import ObjectAction
 from appPublic.argsConvert import ArgsConvert,ConditionConvert
+from appPublic.registerfunction import RegisterFunction
+from appPublic.log import info
 from .filter import DBFilter
 
 def db_type_2_py_type(o):
@@ -605,7 +607,17 @@ class SQLor(object):
 		fns = ','.join(fields)
 		vfns = ','.join(['${%s}$' % n for n in fields ])
 		sql = 'insert into %s.%s (%s) values (%s)' % (self.dbname, tablename,fns,vfns)
-		await self.runSQL({'sql_string':sql},ns,None)
+		rf = RegisterFunction()
+		rfname = f'{self.dbname}:{tablename}:c:before'
+		info(f'{rfname=}')
+		func = rf.get(rfname)
+		if func:
+			ns = func(ns)
+		r = await self.runSQL({'sql_string':sql},ns,None)
+		func = rf.get(f'{self.dbname}:{tablename}:c:after')
+		if func:
+			ns = func(ns)
+		return r
 
 	async def R(self,tablename,ns,filters=None):
 		desc = await self.I(tablename)
@@ -650,8 +662,15 @@ class SQLor(object):
 		u_str = ','.join(u)
 		sql = 'update %s.%s set %s where %s' % (self.dbname, tablename,
 					u_str,c_str)
-		await self.runSQL({'sql_string':sql},ns,None)
-		pass
+		rf = RegisterFunction()
+		func = rf.get(f'{self.dbname}:{tablename}:u:before')
+		if func:
+			ns = func(ns)
+		r = await self.runSQL({'sql_string':sql},ns,None)
+		func = rf.get(f'{self.dbname}:{tablename}:u:after')
+		if func:
+			ns = func(ns)
+		return r
 
 	async def D(self,tablename,ns):
 		desc = await self.I(tablename)
@@ -660,6 +679,13 @@ class SQLor(object):
 		c = [ '%s = ${%s}$' % (i,i) for i in condi ]
 		c_str = ' and '.join(c)
 		sql = 'delete from %s.%s where %s' % (self.dbname, tablename,c_str)
-		await self.runSQL({'sql_string':sql},ns,None)
-
+		rf = RegisterFunction()
+		func = rf.get(f'{self.dbname}:{tablename}:d:before')
+		if func:
+			ns = func(ns)
+		r = await self.runSQL({'sql_string':sql},ns,None)
+		func = rf.get(f'{self.dbname}:{tablename}:d:after')
+		if func:
+			ns = func(ns)
+		return r