Uploading and Downloading files

I have a form where I want to upload files. I followed the cookbook http://www.yiiframework.com/doc/cookbook/2/

I am getting error as Call to a member function saveAs() on a non-object.

doc_comment is the field I am using to upload.

Any help is appreciated.


My controller code is:

public function actioncreate()



$model=new documents;















And view is:

<?php echo CHtml::form('','post',array('enctype'=>'multipart/form-data'));?>






<?php echo $form->labelEx($model,'document comment'); ?>

<?php echo CHtml::activeFileField($model,'document'); ?>

<?php echo $form->error($model,'doc_comment'); ?>





<?php echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save'); ?>

I am not sure that this will fix your problem but I believe you should also be passing the filename to the saveAs() function, not just the directory to save it in.

Try changing:



$model->doc_comment->saveAs("C:/xampp/htdocs/new/images/" . $model->doc_comment);

I use code like this to allow admins to upload files for my users to access and it works as expected.

Also, try doing a var_dump($model->doc_comment) before the saveAs() call to make sure that $model->doc_comment is indeed being populated by CUploadedFile::getInstance()

I tried using var_dump($model->doc_comment) and $model->doc_comment->saveAs("C:/xampp/htdocs/new/images/" . $model->doc_comment); then I got null followed by fatalerror: Call to a member function saveAs() on a non-object.

var_dump given me null.

The main reason is no file is been getting selected.

I made the field being required in model then it gave error as it cannot be blank.

Can anybody help me how to get rid of this error.


You have a mismatch in attribute names:



<?php echo CHtml::activeFileField($model,'document'); ?>

Thankyou very much mike,

That solved the problem(shame on me) of uploading the files to database.

But I couldnot find any relevant searches in Yii to create download links for the files from database. I am new to php and yii framework.

Any help is appreciated.

Thanks a lot for the support being given to newbies.

There are many ways to solve this. But it depends on your requirements. Some options:

  • Files are uploaded to a public folder in www: Then you only have to create a link with the filename from DB

  • Files are uploaded to a private directory: Then create a controller action for download. There you can check user permission and use readfile() to send the file to the client through PHP.

Also check the CFile extension that has many methods for manipulating files

thanks mike and spyros…that helped me a lot…

I want your help in another small problem regarding uploading files.

I have a form where there is a possibility to upload as many as 14 documents at a time. So I used batch update. The problem I am facing there is an error which says saveas calling non object( I got to know that error occurs if documents are not being read). When I tried with the single document(different code for single) then it worked fine.

This is my code for multiple documents…


<?php foreach($doc as $k=>$ment): ?>

<?php echo CHtml::activeDropDownList($ment,"[$i]doc_type_id",$ment->DocumentOptions,

              array('empty' => 'Select the document'));?>

<?php echo "comments".$form ->textField($ment,"[$i]doc_type_other_desc",array('size'=>20,'maxlength'=>30)); ?>

  <?php echo "upload document".CHtml::form('','post',array('enctype'=>'multipart/form-data')); ?>

		<?php echo CHtml::activeFileField($ment,"[$i]document"); ?>

<?php echo $form->error($ment,"[$i]document"); ?>


<?php endforeach; ?>





                              foreach($doc as $m=>$abc)





   $doc[$m]->document = CUploadedFile::getInstance($doc[$m], "[$m]document" );


 $valid=$valid && $doc[$m]->validate();




              foreach($doc as $m=>$abc)


       $abc->student_id = $student_id->student_id;   







I followed cookbook http://www.yiiframework.com/doc/cookbook/29/

please let me know where I am going wrong.

Thanks a lot … :)

Please help me. Any help is appreciated.

Hi I also got error wile uploading image

my update action is here

public function actionUpdate($id)




		$img_flyer = CUploadedFile::getInstance($model,'image');

		if ((is_object($img_flyer) && get_class($img_flyer)==='CUploadedFile'))

			$model->image = $img_flyer;



		// Uncomment the following line if AJAX validation is needed

		// $this->performAjaxValidation($model);







			foreach ($_POST['Job'] as $key=>$value)




				$contractor = $model->contractor;

				$contractor->contact_id = Main::saveContact($model);

				$contractor->address_id = Main::saveAddress($model);


				if (is_object($img_flyer))



					$id = $contractor->image_id;




					//$img_flyer = strtolower($img_flyer);

					// $fileDir = dirname(Yii::app()->basePath).'/images/contractor/'.$img_flyer; 

					 $model->image->saveAs("D:/xampp/htdocs/contractorgig/images/contractor/orginal/" .$img_flyer);


					$width = array('1'=>'48','2'=>'240');

					$height = array('1'=>'60','2'=>'300');


					$fileDir1 = dirname(Yii::app()->basePath).'/images/contractor/thumbs/big/'.$img_flyer;

					$fileDir2 = dirname(Yii::app()->basePath).'/images/contractor/thumbs/small/'.$img_flyer;



					$image = Yii::app()->image->load($fileDir.$i);




					$img = Image::model()->findByPk($id);

					$img->name = $img_flyer;




my file upload form file with is

<div class="cf mt-20">

			<label for="company_logo" class="col-l tg-label bold">Logo</label>

			<?php echo CHtml::activeFileField($model,'image',array('size'=>40,'maxlength'=>255,'class'=>"ml-45")); ?>

			<p class="gra mt-8 clear ml-75">

				Optional - Your company logo will appear at the top of your listing.

				190px wide is optimal. We'll resize automatically if it's wider than

				190px.<br />The following image file formats are supported only:




I has also set


I had also defined

public $image in Job model

Also when print_r I got the object too

but I can’t get it saved the error with debug the file is

CUploadedFile Object ( [_name:CUploadedFile:private] => ico1.png [_tempName:CUploadedFile:private] => D:\xampp\tmp\php82A8.tmp [_type:CUploadedFile:private] => image/png [_size:CUploadedFile:private] => 5410 [_error:CUploadedFile:private] => 0 [_e:CComponent:private] => [_m:CComponent:private] => )

Fatal error: Call to a member function saveAs() on a non-object in D:\xampp\htdocs\contractorgig\protected\controllers\JobController.php on line 167

Please help me out in this as soon as possible. Thank you