求助关于上传附件的问题!

我自己新加了一个页面但是上传附件选择完文件点保存,主表数据都保存成功了,但是file这个表没有插入数据,uoload的文件夹也没有,求助啊

public function create()
{
$now = helper::now();
$mycustomer = fixer::input('post') 
->setDefault('Username', $this->app->user->account)
->setDefault('CreateDate', helper::now())
->setDefault('statusflag', 1)
->join('projectOL', ',')
->join('CustomerType', ',')
->join('isPrintRule', ',')
->join('isParameterRule', ',')
->join('isReceivingRule', ',')
->join('isReturnRule', ',')
->join('isShopCheckRule', ',')
->join('isVIPRule', ',')
->stripTags($this->config->bug->editor->create['id'], $this->config->allowedTags)
->remove('files, labels')
->get();
$result = $this->loadModel('common')->removeDuplicate('MyCustomer', $mycustomer, "CustomerName={$mycustomer->CustomerName}");
if($result['stop']) return array('status' => 'exists', 'id' => $result['duplicate']);
$this->dao->insert(TABLE_MyCustomer)->data($mycustomer)
->exec();
if(!dao::isError())
{
$mycustomerID = $this->dao->lastInsertID(); 
$this->loadModel('file')->saveUpload('mycustomer', $mycustomerID);
return array('status' => 'new', 'id' => $mycustomerID);
}
return false; 
}