How to validate file upload field

International Indian
1

Hello,

How to validate the file upload field in yii…

The uploaded image is save id in folder not in db.

2

Did you check CFileValidator? You can add validation to your model like this:


array('image', 'file', 'allowEmpty'=>true, 'types'=>'jpg,jpeg,gif,png')
1 Like
3

For validation File

Just Add

public function rules()

{


    return array(


        array('image', 'file', 'types'=>'jpg, gif, png'),


    );


}

For validation

4

hi friend you can also validate your upload image by creating a function in controller

like

public function imageValidate($img, $maxwidth = 1024, $maxheight = 1024)

{





	$imagehw = getimagesize($img);


	$imagewidth = $imagehw[0];


	$imageheight = $imagehw[1];


	$imagetype = $imagehw[2];


	$valid_types = array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG, IMAGETYPE_BMP);


	if (in_array($imagetype, $valid_types))


	{


		if($imagewidth < $maxwidth || $imageheight < $maxheight )


			return 1;


	}





	return 0;


}

and checked it in your model by passing the value.

5

Rajesh: Don’t do stuff like that in the controller, it doesn’t belong there as it should know as little as possible of what your model/form needs to work.

You can easily call a custom validation function by using a validation rule like

[size="2"]


array('attribute', 'myFunctionName');

[/size]

It will call the function in the model during validation. You can do that verification either there, or create some sort of file-helper component and call that.

It’s a lot cleaner.

6

How can i validate only image extension without page load. when a image upload it will check immediate whether it is match with extension or not. user will get a message instantly. i do it by that way:::::

array(‘image’,‘file’,‘types’=>“jpg,gif,png”,‘message’=>‘Invalid’),

but it work only after page load…i want it will check instantly when upload…plz explain with example…

7

How can i validate only image extension without page load. when a image upload it will check immediate whether it is match with extension or not. user will get a message instantly. i do it by that way:::::

Quote

array(‘image’,‘file’,‘types’=>“jpg,gif,png”,‘message’=>‘Invalid’),

but it work only after page load…i want it will check instantly when upload…plz explain with example…

8

how to get the original name of the image to store in database??

i am using


if($model->save())

			{

				if($model->image !== null)

                        {

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

							$model->image = uniqid() . '.jpg';

                            $image->saveAs( Yii::getPathOfAlias('webroot.images') .  '/'  . '.jpg');

                        }

				$this->redirect(array('view','id'=>$model->addid));

			}

by this it takes the original name in the database but assigns the unique id generated name to the stored image in webroot/image folder

whats wrong in this case??