upload file to sql table using a path - php

Question

I'm trying to upload a file to a MySQL table using a path (the file will be save on the server asd in the table a link for him). Here is what I've done:
My view is:
<div class="row">
<?php echo $form->labelEx($model,'doc_ordered_recieved'); ?>
<?php echo $form->fileField($model,'doc_ordered_recieved'); ?>
<?php echo $form->error($model,'doc_ordered_recieved'); ?>
</div>
My model is:
array('doc_ordered_recieved','file','types'=>'pdf', 'allowEmpty'=>true, 'on'=>'insert,update'),
and my controller is:
public function actionCreate()
{
$model=new Orders;
if(isset($_POST['Orders']))
{
$model->attributes=$_POST['Orders'];
$uploadedFile = CUploadedFile::getInstance($model,'doc_ordered_recieved');
if($model->save())
{
if(!empty($uploadedFile)) // check if uploaded file is set or not
{
if($model->doc_ordered_recieved== null || empty($model->doc_ordered_recieved)){
$rnd = rand(0,9999);// generate random number between 0-9999
$fileName = "{$rnd}-{$uploadedFile}";
$model->doc_ordered_recieved= $fileName;
}
$uploadedFile->saveAs(dirname(__FILE__)..'/files/'. $model->doc_ordered_recieved);
// redirect to success page
}
$this->redirect(array('view','id'=>$model->oid));
}
}
$this->render('create',array('model'=>$model,
));
}
The table is defined as varchar is that ok????
The file should be saved in d:\xampp\htdocs\filse
Please help me it always says: doc_ordered_recieved can't be blank