i want to update my field depend on current user's group , but when i execute the method it update all the record even it has the other group .

here's the code :

def wtc_approval(self, cr, uid, ids,vals, context=None):
        user = self.pool.get("res.users").browse(cr, uid, uid)['groups_id']
        data = self.pool.get("wtc.approval.line").browse(cr,uid,user)
        line = self.browse(cr, uid, ids, context=context)
   
        for user in line.app_line:
            line.app_line.write({
                                   'sts':'2',
                                   'pelaksana':uid,
                                   'tanggal':datetime.today()
                                   })
           return True

i don't know how to get current user group , the code always catch all group ..

anybody know how to resolve it ?

Thanks in advance